/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.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 04:16:40,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 04:16:40,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 04:16:40,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 04:16:40,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 04:16:40,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 04:16:40,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 04:16:40,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 04:16:40,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 04:16:40,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 04:16:40,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 04:16:40,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 04:16:40,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 04:16:40,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 04:16:40,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 04:16:40,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 04:16:40,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 04:16:40,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 04:16:40,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 04:16:40,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 04:16:40,807 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 04:16:40,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 04:16:40,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 04:16:40,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 04:16:40,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 04:16:40,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-05 04:16:40,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 04:16:40,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 04:16:40,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 04:16:40,822 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 04:16:40,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 04:16:40,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 04:16:40,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 04:16:40,830 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 04:16:40,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 04:16:40,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 04:16:40,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 04:16:40,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 04:16:40,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 04:16:40,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 04:16:40,832 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 04:16:40,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 04:16:40,832 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 04:16:40,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 04:16:40,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 04:16:40,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 04:16:40,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 04:16:40,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 04:16:40,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:16:40,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 04:16:40,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 04:16:40,835 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 04:16:40,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 04:16:41,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 04:16:41,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 04:16:41,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 04:16:41,054 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 04:16:41,057 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 04:16:41,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-04-05 04:16:41,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7ef8c8d/4ac0de0934cf4100aee8b4c390d23b7e/FLAG0084ab572 [2022-04-05 04:16:41,523 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 04:16:41,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-04-05 04:16:41,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7ef8c8d/4ac0de0934cf4100aee8b4c390d23b7e/FLAG0084ab572 [2022-04-05 04:16:41,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7ef8c8d/4ac0de0934cf4100aee8b4c390d23b7e [2022-04-05 04:16:41,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 04:16:41,832 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 04:16:41,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 04:16:41,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 04:16:41,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 04:16:41,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:16:41" (1/1) ... [2022-04-05 04:16:41,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47030706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:16:41, skipping insertion in model container [2022-04-05 04:16:41,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:16:41" (1/1) ... [2022-04-05 04:16:41,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 04:16:41,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 04:16:42,173 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.01.i.cil-1.c[72918,72931] [2022-04-05 04:16:42,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:16:42,193 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 04:16:42,308 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.01.i.cil-1.c[72918,72931] [2022-04-05 04:16:42,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:16:42,324 INFO L208 MainTranslator]: Completed translation [2022-04-05 04:16:42,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:16:42 WrapperNode [2022-04-05 04:16:42,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 04:16:42,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 04:16:42,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 04:16:42,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 04:16:42,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:16:42" (1/1) ... [2022-04-05 04:16:42,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:16:42" (1/1) ... [2022-04-05 04:16:42,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:16:42" (1/1) ... [2022-04-05 04:16:42,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:16:42" (1/1) ... [2022-04-05 04:16:42,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:16:42" (1/1) ... [2022-04-05 04:16:42,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:16:42" (1/1) ... [2022-04-05 04:16:42,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:16:42" (1/1) ... [2022-04-05 04:16:42,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 04:16:42,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 04:16:42,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 04:16:42,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 04:16:42,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:16:42" (1/1) ... [2022-04-05 04:16:42,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:16:42,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:16:42,446 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 04:16:42,467 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 04:16:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 04:16:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 04:16:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 04:16:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 04:16:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 04:16:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 04:16:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 04:16:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 04:16:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 04:16:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 04:16:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 04:16:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 04:16:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 04:16:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 04:16:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 04:16:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 04:16:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 04:16:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 04:16:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 04:16:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 04:16:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 04:16:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 04:16:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 04:16:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 04:16:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 04:16:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 04:16:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 04:16:42,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 04:16:42,638 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 04:16:42,639 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 04:16:44,937 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:16:45,377 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 04:16:45,377 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 04:16:45,389 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 04:16:45,399 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 04:16:45,399 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 04:16:45,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:16:45 BoogieIcfgContainer [2022-04-05 04:16:45,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 04:16:45,402 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 04:16:45,402 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 04:16:45,403 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 04:16:45,405 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:16:45" (1/1) ... [2022-04-05 04:16:45,406 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 04:16:45,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:16:45 BasicIcfg [2022-04-05 04:16:45,455 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 04:16:45,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 04:16:45,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 04:16:45,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 04:16:45,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:16:41" (1/4) ... [2022-04-05 04:16:45,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2c7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:16:45, skipping insertion in model container [2022-04-05 04:16:45,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:16:42" (2/4) ... [2022-04-05 04:16:45,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2c7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:16:45, skipping insertion in model container [2022-04-05 04:16:45,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:16:45" (3/4) ... [2022-04-05 04:16:45,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2c7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:16:45, skipping insertion in model container [2022-04-05 04:16:45,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:16:45" (4/4) ... [2022-04-05 04:16:45,465 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-1.cJordan [2022-04-05 04:16:45,472 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 04:16:45,472 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 04:16:45,514 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 04:16:45,522 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 04:16:45,522 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 04:16:45,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 04:16:45,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-04-05 04:16:45,560 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:45,560 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:45,561 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:45,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:45,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1394707426, now seen corresponding path program 1 times [2022-04-05 04:16:45,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:45,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758940689] [2022-04-05 04:16:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:45,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:46,004 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 04:16:46,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:46,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758940689] [2022-04-05 04:16:46,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758940689] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:46,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:46,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:46,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31458273] [2022-04-05 04:16:46,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:46,009 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:46,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:46,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:46,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:46,032 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:47,598 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 04:16:49,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:51,647 WARN L534 Checker$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 04:16:53,673 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 04:16:54,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:54,310 INFO L93 Difference]: Finished difference Result 281 states and 462 transitions. [2022-04-05 04:16:54,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:54,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 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 53 [2022-04-05 04:16:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:54,321 INFO L225 Difference]: With dead ends: 281 [2022-04-05 04:16:54,322 INFO L226 Difference]: Without dead ends: 255 [2022-04-05 04:16:54,322 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 04:16:54,324 INFO L913 BasicCegarLoop]: 149 mSDtfsCounter, 142 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 65 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:54,325 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 439 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 522 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-04-05 04:16:54,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-04-05 04:16:54,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 182. [2022-04-05 04:16:54,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.6045197740112995) internal successors, (284), 177 states have internal predecessors, (284), 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 04:16:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 288 transitions. [2022-04-05 04:16:54,359 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 288 transitions. Word has length 53 [2022-04-05 04:16:54,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:54,359 INFO L478 AbstractCegarLoop]: Abstraction has 182 states and 288 transitions. [2022-04-05 04:16:54,360 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:54,360 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2022-04-05 04:16:54,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-04-05 04:16:54,362 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:54,362 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:54,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 04:16:54,363 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:54,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:54,363 INFO L85 PathProgramCache]: Analyzing trace with hash 315625172, now seen corresponding path program 1 times [2022-04-05 04:16:54,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:54,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808625082] [2022-04-05 04:16:54,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:54,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:54,484 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 04:16:54,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:54,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808625082] [2022-04-05 04:16:54,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808625082] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:54,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:54,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:54,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005119216] [2022-04-05 04:16:54,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:54,486 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:54,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:54,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:54,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:54,487 INFO L87 Difference]: Start difference. First operand 182 states and 288 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:56,496 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 04:16:56,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:56,844 INFO L93 Difference]: Finished difference Result 210 states and 328 transitions. [2022-04-05 04:16:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:56,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 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 54 [2022-04-05 04:16:56,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:56,846 INFO L225 Difference]: With dead ends: 210 [2022-04-05 04:16:56,846 INFO L226 Difference]: Without dead ends: 210 [2022-04-05 04:16:56,846 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 04:16:56,847 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 22 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:56,847 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 460 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:16:56,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-04-05 04:16:56,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-04-05 04:16:56,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 188 states have internal predecessors, (303), 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 04:16:56,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 307 transitions. [2022-04-05 04:16:56,858 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 307 transitions. Word has length 54 [2022-04-05 04:16:56,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:56,858 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 307 transitions. [2022-04-05 04:16:56,858 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:56,859 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 307 transitions. [2022-04-05 04:16:56,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 04:16:56,894 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:56,895 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:56,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 04:16:56,895 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:56,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:56,896 INFO L85 PathProgramCache]: Analyzing trace with hash -254321634, now seen corresponding path program 1 times [2022-04-05 04:16:56,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:56,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537950072] [2022-04-05 04:16:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:56,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:57,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:57,033 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 04:16:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:57,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537950072] [2022-04-05 04:16:57,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537950072] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:57,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:57,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:57,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361704458] [2022-04-05 04:16:57,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:57,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:57,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:57,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:57,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:57,036 INFO L87 Difference]: Start difference. First operand 193 states and 307 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 04:16:59,047 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 04:16:59,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:59,412 INFO L93 Difference]: Finished difference Result 210 states and 327 transitions. [2022-04-05 04:16:59,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:59,415 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 04:16:59,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:59,416 INFO L225 Difference]: With dead ends: 210 [2022-04-05 04:16:59,416 INFO L226 Difference]: Without dead ends: 210 [2022-04-05 04:16:59,417 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 04:16:59,417 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 24 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:59,422 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 462 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:59,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-04-05 04:16:59,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-04-05 04:16:59,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6063829787234043) internal successors, (302), 188 states have internal predecessors, (302), 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 04:16:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 306 transitions. [2022-04-05 04:16:59,429 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 306 transitions. Word has length 67 [2022-04-05 04:16:59,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:59,429 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 306 transitions. [2022-04-05 04:16:59,429 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 04:16:59,429 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 306 transitions. [2022-04-05 04:16:59,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 04:16:59,431 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:59,431 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:59,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 04:16:59,435 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:59,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:59,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1913510738, now seen corresponding path program 1 times [2022-04-05 04:16:59,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:59,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010012734] [2022-04-05 04:16:59,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:59,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:59,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:59,571 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 04:16:59,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:59,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010012734] [2022-04-05 04:16:59,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010012734] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:59,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:59,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:59,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777286163] [2022-04-05 04:16:59,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:59,574 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:59,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:59,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:59,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:59,575 INFO L87 Difference]: Start difference. First operand 193 states and 306 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 04:17:01,585 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 04:17:01,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:01,920 INFO L93 Difference]: Finished difference Result 208 states and 324 transitions. [2022-04-05 04:17:01,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:01,920 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 04:17:01,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:01,921 INFO L225 Difference]: With dead ends: 208 [2022-04-05 04:17:01,922 INFO L226 Difference]: Without dead ends: 208 [2022-04-05 04:17:01,922 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 04:17:01,922 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:01,923 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 466 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:01,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-04-05 04:17:01,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 193. [2022-04-05 04:17:01,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.601063829787234) internal successors, (301), 188 states have internal predecessors, (301), 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 04:17:01,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 305 transitions. [2022-04-05 04:17:01,929 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 305 transitions. Word has length 68 [2022-04-05 04:17:01,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:01,929 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 305 transitions. [2022-04-05 04:17:01,929 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 04:17:01,929 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 305 transitions. [2022-04-05 04:17:01,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 04:17:01,930 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:01,930 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:01,931 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 04:17:01,931 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:01,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:01,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1376108913, now seen corresponding path program 1 times [2022-04-05 04:17:01,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:01,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450586285] [2022-04-05 04:17:01,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:01,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:02,044 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 04:17:02,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:02,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450586285] [2022-04-05 04:17:02,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450586285] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:02,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:02,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:02,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417581181] [2022-04-05 04:17:02,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:02,045 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:02,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:02,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:02,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:02,046 INFO L87 Difference]: Start difference. First operand 193 states and 305 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 04:17:04,054 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 04:17:04,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:04,392 INFO L93 Difference]: Finished difference Result 207 states and 322 transitions. [2022-04-05 04:17:04,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:04,393 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 04:17:04,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:04,393 INFO L225 Difference]: With dead ends: 207 [2022-04-05 04:17:04,394 INFO L226 Difference]: Without dead ends: 207 [2022-04-05 04:17:04,394 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 04:17:04,394 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:04,395 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 468 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:04,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-04-05 04:17:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 193. [2022-04-05 04:17:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5957446808510638) internal successors, (300), 188 states have internal predecessors, (300), 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 04:17:04,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 304 transitions. [2022-04-05 04:17:04,401 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 304 transitions. Word has length 68 [2022-04-05 04:17:04,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:04,401 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 304 transitions. [2022-04-05 04:17:04,401 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 04:17:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 304 transitions. [2022-04-05 04:17:04,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-05 04:17:04,402 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:04,403 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:04,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 04:17:04,403 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:04,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:04,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1541595334, now seen corresponding path program 1 times [2022-04-05 04:17:04,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:04,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995692279] [2022-04-05 04:17:04,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:04,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:04,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:04,523 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 04:17:04,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:04,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995692279] [2022-04-05 04:17:04,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995692279] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:04,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:04,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:04,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849534520] [2022-04-05 04:17:04,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:04,527 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:04,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:04,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:04,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:04,528 INFO L87 Difference]: Start difference. First operand 193 states and 304 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:06,536 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 04:17:06,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:06,942 INFO L93 Difference]: Finished difference Result 206 states and 320 transitions. [2022-04-05 04:17:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:06,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-04-05 04:17:06,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:06,943 INFO L225 Difference]: With dead ends: 206 [2022-04-05 04:17:06,944 INFO L226 Difference]: Without dead ends: 206 [2022-04-05 04:17:06,944 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 04:17:06,944 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:06,944 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:17:06,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-04-05 04:17:06,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 193. [2022-04-05 04:17:06,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5904255319148937) internal successors, (299), 188 states have internal predecessors, (299), 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 04:17:06,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 303 transitions. [2022-04-05 04:17:06,950 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 303 transitions. Word has length 69 [2022-04-05 04:17:06,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:06,950 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 303 transitions. [2022-04-05 04:17:06,950 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:06,950 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 303 transitions. [2022-04-05 04:17:06,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-05 04:17:06,951 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:06,951 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:06,951 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 04:17:06,951 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:06,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:06,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1597008666, now seen corresponding path program 1 times [2022-04-05 04:17:06,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:06,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407501268] [2022-04-05 04:17:06,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:06,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:07,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:07,033 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 04:17:07,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:07,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407501268] [2022-04-05 04:17:07,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407501268] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:07,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:07,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:07,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869237547] [2022-04-05 04:17:07,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:07,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:07,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:07,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:07,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:07,035 INFO L87 Difference]: Start difference. First operand 193 states and 303 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:09,043 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 04:17:09,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:09,554 INFO L93 Difference]: Finished difference Result 309 states and 479 transitions. [2022-04-05 04:17:09,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:09,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-04-05 04:17:09,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:09,557 INFO L225 Difference]: With dead ends: 309 [2022-04-05 04:17:09,557 INFO L226 Difference]: Without dead ends: 309 [2022-04-05 04:17:09,557 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 04:17:09,559 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 144 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:09,559 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:17:09,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-04-05 04:17:09,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 205. [2022-04-05 04:17:09,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.575) internal successors, (315), 200 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 04:17:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 319 transitions. [2022-04-05 04:17:09,580 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 319 transitions. Word has length 69 [2022-04-05 04:17:09,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:09,580 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 319 transitions. [2022-04-05 04:17:09,580 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:09,580 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 319 transitions. [2022-04-05 04:17:09,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-04-05 04:17:09,581 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:09,582 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:09,582 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 04:17:09,582 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:09,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:09,582 INFO L85 PathProgramCache]: Analyzing trace with hash 511071466, now seen corresponding path program 1 times [2022-04-05 04:17:09,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:09,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751174937] [2022-04-05 04:17:09,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:09,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:09,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:09,713 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 04:17:09,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:09,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751174937] [2022-04-05 04:17:09,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751174937] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:09,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:09,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:09,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127927823] [2022-04-05 04:17:09,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:09,714 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:09,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:09,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:09,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:09,715 INFO L87 Difference]: Start difference. First operand 205 states and 319 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:11,724 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 04:17:12,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:12,184 INFO L93 Difference]: Finished difference Result 309 states and 476 transitions. [2022-04-05 04:17:12,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:12,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-04-05 04:17:12,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:12,190 INFO L225 Difference]: With dead ends: 309 [2022-04-05 04:17:12,190 INFO L226 Difference]: Without dead ends: 309 [2022-04-05 04:17:12,191 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 04:17:12,192 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 142 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:12,192 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:17:12,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-04-05 04:17:12,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 206. [2022-04-05 04:17:12,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.5621890547263682) internal successors, (314), 201 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 04:17:12,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 318 transitions. [2022-04-05 04:17:12,198 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 318 transitions. Word has length 70 [2022-04-05 04:17:12,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:12,198 INFO L478 AbstractCegarLoop]: Abstraction has 206 states and 318 transitions. [2022-04-05 04:17:12,199 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:12,199 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 318 transitions. [2022-04-05 04:17:12,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-04-05 04:17:12,199 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:12,199 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:12,200 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 04:17:12,200 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:12,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:12,200 INFO L85 PathProgramCache]: Analyzing trace with hash -11530602, now seen corresponding path program 1 times [2022-04-05 04:17:12,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:12,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879545050] [2022-04-05 04:17:12,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:12,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:12,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:12,294 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 04:17:12,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:12,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879545050] [2022-04-05 04:17:12,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879545050] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:12,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:12,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:12,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209122193] [2022-04-05 04:17:12,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:12,296 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:12,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:12,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:12,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:12,297 INFO L87 Difference]: Start difference. First operand 206 states and 318 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:14,305 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 04:17:14,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:14,623 INFO L93 Difference]: Finished difference Result 219 states and 334 transitions. [2022-04-05 04:17:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:14,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 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 71 [2022-04-05 04:17:14,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:14,625 INFO L225 Difference]: With dead ends: 219 [2022-04-05 04:17:14,625 INFO L226 Difference]: Without dead ends: 219 [2022-04-05 04:17:14,625 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 04:17:14,625 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:14,625 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:14,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-04-05 04:17:14,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 206. [2022-04-05 04:17:14,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.5572139303482586) internal successors, (313), 201 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 04:17:14,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 317 transitions. [2022-04-05 04:17:14,629 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 317 transitions. Word has length 71 [2022-04-05 04:17:14,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:14,629 INFO L478 AbstractCegarLoop]: Abstraction has 206 states and 317 transitions. [2022-04-05 04:17:14,630 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:14,630 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 317 transitions. [2022-04-05 04:17:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-04-05 04:17:14,630 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:14,630 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:14,630 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 04:17:14,631 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:14,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:14,631 INFO L85 PathProgramCache]: Analyzing trace with hash -618559600, now seen corresponding path program 1 times [2022-04-05 04:17:14,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:14,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608460741] [2022-04-05 04:17:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:14,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:14,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:14,723 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 04:17:14,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:14,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608460741] [2022-04-05 04:17:14,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608460741] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:14,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:14,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:14,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563550121] [2022-04-05 04:17:14,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:14,724 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:14,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:14,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:14,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:14,726 INFO L87 Difference]: Start difference. First operand 206 states and 317 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:16,739 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 04:17:17,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:17,076 INFO L93 Difference]: Finished difference Result 249 states and 380 transitions. [2022-04-05 04:17:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:17,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 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 71 [2022-04-05 04:17:17,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:17,077 INFO L225 Difference]: With dead ends: 249 [2022-04-05 04:17:17,078 INFO L226 Difference]: Without dead ends: 249 [2022-04-05 04:17:17,078 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 04:17:17,078 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 32 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:17,079 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 510 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:17,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-04-05 04:17:17,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 228. [2022-04-05 04:17:17,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.5650224215246638) internal successors, (349), 223 states have internal predecessors, (349), 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 04:17:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 353 transitions. [2022-04-05 04:17:17,083 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 353 transitions. Word has length 71 [2022-04-05 04:17:17,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:17,083 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 353 transitions. [2022-04-05 04:17:17,083 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:17,083 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 353 transitions. [2022-04-05 04:17:17,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-04-05 04:17:17,084 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:17,084 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:17,084 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 04:17:17,084 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:17,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:17,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1019782777, now seen corresponding path program 1 times [2022-04-05 04:17:17,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:17,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355292752] [2022-04-05 04:17:17,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:17,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:17,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:17,185 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 04:17:17,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:17,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355292752] [2022-04-05 04:17:17,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355292752] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:17,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:17,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:17,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260565373] [2022-04-05 04:17:17,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:17,186 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:17,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:17,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:17,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:17,187 INFO L87 Difference]: Start difference. First operand 228 states and 353 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:19,198 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 04:17:19,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:19,624 INFO L93 Difference]: Finished difference Result 331 states and 507 transitions. [2022-04-05 04:17:19,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:19,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 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 72 [2022-04-05 04:17:19,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:19,626 INFO L225 Difference]: With dead ends: 331 [2022-04-05 04:17:19,626 INFO L226 Difference]: Without dead ends: 331 [2022-04-05 04:17:19,626 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 04:17:19,627 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 139 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:19,627 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:17:19,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-04-05 04:17:19,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 230. [2022-04-05 04:17:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.551111111111111) internal successors, (349), 225 states have internal predecessors, (349), 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 04:17:19,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 353 transitions. [2022-04-05 04:17:19,631 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 353 transitions. Word has length 72 [2022-04-05 04:17:19,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:19,631 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 353 transitions. [2022-04-05 04:17:19,631 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:19,631 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 353 transitions. [2022-04-05 04:17:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-05 04:17:19,632 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:19,632 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:19,632 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 04:17:19,632 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:19,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:19,633 INFO L85 PathProgramCache]: Analyzing trace with hash -913771294, now seen corresponding path program 1 times [2022-04-05 04:17:19,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:19,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791917476] [2022-04-05 04:17:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:19,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:19,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:19,726 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:17:19,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:19,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791917476] [2022-04-05 04:17:19,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791917476] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:19,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:19,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:19,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675692556] [2022-04-05 04:17:19,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:19,727 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:19,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:19,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:19,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:19,727 INFO L87 Difference]: Start difference. First operand 230 states and 353 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 04:17:21,742 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 04:17:22,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:22,193 INFO L93 Difference]: Finished difference Result 374 states and 581 transitions. [2022-04-05 04:17:22,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:22,194 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 84 [2022-04-05 04:17:22,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:22,195 INFO L225 Difference]: With dead ends: 374 [2022-04-05 04:17:22,195 INFO L226 Difference]: Without dead ends: 374 [2022-04-05 04:17:22,195 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 04:17:22,196 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 138 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:22,196 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 323 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:17:22,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-04-05 04:17:22,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 247. [2022-04-05 04:17:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.537190082644628) internal successors, (372), 242 states have internal predecessors, (372), 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 04:17:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 376 transitions. [2022-04-05 04:17:22,202 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 376 transitions. Word has length 84 [2022-04-05 04:17:22,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:22,203 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 376 transitions. [2022-04-05 04:17:22,203 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 04:17:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 376 transitions. [2022-04-05 04:17:22,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-05 04:17:22,203 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:22,204 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:22,204 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 04:17:22,204 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:22,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:22,204 INFO L85 PathProgramCache]: Analyzing trace with hash -881613718, now seen corresponding path program 1 times [2022-04-05 04:17:22,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:22,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790912828] [2022-04-05 04:17:22,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:22,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:22,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:17:22,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:22,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790912828] [2022-04-05 04:17:22,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790912828] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:22,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:22,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:22,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577965453] [2022-04-05 04:17:22,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:22,304 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:22,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:22,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:22,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:22,304 INFO L87 Difference]: Start difference. First operand 247 states and 376 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:24,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:17:24,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:24,832 INFO L93 Difference]: Finished difference Result 347 states and 525 transitions. [2022-04-05 04:17:24,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:24,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-04-05 04:17:24,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:24,833 INFO L225 Difference]: With dead ends: 347 [2022-04-05 04:17:24,834 INFO L226 Difference]: Without dead ends: 347 [2022-04-05 04:17:24,834 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 04:17:24,834 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 137 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:24,834 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:17:24,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-04-05 04:17:24,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 248. [2022-04-05 04:17:24,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.5267489711934157) internal successors, (371), 243 states have internal predecessors, (371), 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 04:17:24,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 375 transitions. [2022-04-05 04:17:24,838 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 375 transitions. Word has length 85 [2022-04-05 04:17:24,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:24,838 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 375 transitions. [2022-04-05 04:17:24,839 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:24,839 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 375 transitions. [2022-04-05 04:17:24,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-05 04:17:24,839 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:24,839 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:24,839 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 04:17:24,840 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:24,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:24,840 INFO L85 PathProgramCache]: Analyzing trace with hash -344211893, now seen corresponding path program 1 times [2022-04-05 04:17:24,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:24,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974626700] [2022-04-05 04:17:24,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:24,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:24,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:24,936 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:17:24,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:24,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974626700] [2022-04-05 04:17:24,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974626700] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:24,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:24,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:24,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575058247] [2022-04-05 04:17:24,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:24,937 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:24,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:24,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:24,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:24,937 INFO L87 Difference]: Start difference. First operand 248 states and 375 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:26,834 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 04:17:28,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:17:30,890 WARN L534 Checker$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 04:17:32,916 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 04:17:33,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:33,260 INFO L93 Difference]: Finished difference Result 266 states and 398 transitions. [2022-04-05 04:17:33,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:33,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-04-05 04:17:33,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:33,261 INFO L225 Difference]: With dead ends: 266 [2022-04-05 04:17:33,261 INFO L226 Difference]: Without dead ends: 266 [2022-04-05 04:17:33,262 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 04:17:33,262 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 32 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:33,262 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 488 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 381 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-04-05 04:17:33,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-04-05 04:17:33,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 248. [2022-04-05 04:17:33,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.522633744855967) internal successors, (370), 243 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 374 transitions. [2022-04-05 04:17:33,267 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 374 transitions. Word has length 85 [2022-04-05 04:17:33,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:33,267 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 374 transitions. [2022-04-05 04:17:33,267 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:33,267 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 374 transitions. [2022-04-05 04:17:33,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-04-05 04:17:33,268 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:33,268 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:33,268 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 04:17:33,268 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:33,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:33,268 INFO L85 PathProgramCache]: Analyzing trace with hash 382441214, now seen corresponding path program 1 times [2022-04-05 04:17:33,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:33,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455868622] [2022-04-05 04:17:33,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:33,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:33,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:33,396 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:17:33,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:33,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455868622] [2022-04-05 04:17:33,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455868622] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:33,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:33,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:33,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085556439] [2022-04-05 04:17:33,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:33,397 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:33,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:33,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:33,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:33,397 INFO L87 Difference]: Start difference. First operand 248 states and 374 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 04:17:35,405 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 04:17:35,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:35,735 INFO L93 Difference]: Finished difference Result 261 states and 389 transitions. [2022-04-05 04:17:35,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:35,735 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 86 [2022-04-05 04:17:35,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:35,736 INFO L225 Difference]: With dead ends: 261 [2022-04-05 04:17:35,736 INFO L226 Difference]: Without dead ends: 261 [2022-04-05 04:17:35,736 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 04:17:35,737 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 19 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:35,737 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 547 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:35,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-04-05 04:17:35,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 248. [2022-04-05 04:17:35,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.5185185185185186) internal successors, (369), 243 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 373 transitions. [2022-04-05 04:17:35,740 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 373 transitions. Word has length 86 [2022-04-05 04:17:35,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:35,740 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 373 transitions. [2022-04-05 04:17:35,741 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 04:17:35,741 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 373 transitions. [2022-04-05 04:17:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-05 04:17:35,741 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:35,741 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:35,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 04:17:35,741 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:35,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:35,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1995759549, now seen corresponding path program 1 times [2022-04-05 04:17:35,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:35,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356431406] [2022-04-05 04:17:35,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:35,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-05 04:17:35,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:35,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356431406] [2022-04-05 04:17:35,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356431406] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:35,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:35,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:17:35,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139927616] [2022-04-05 04:17:35,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:35,833 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:17:35,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:35,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:17:35,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:17:35,833 INFO L87 Difference]: Start difference. First operand 248 states and 373 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:37,841 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 04:17:38,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:38,208 INFO L93 Difference]: Finished difference Result 257 states and 384 transitions. [2022-04-05 04:17:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:17:38,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-04-05 04:17:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:38,209 INFO L225 Difference]: With dead ends: 257 [2022-04-05 04:17:38,209 INFO L226 Difference]: Without dead ends: 257 [2022-04-05 04:17:38,209 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 04:17:38,210 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:38,210 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 605 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:38,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-04-05 04:17:38,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-04-05 04:17:38,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.507936507936508) internal successors, (380), 252 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:38,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 384 transitions. [2022-04-05 04:17:38,215 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 384 transitions. Word has length 87 [2022-04-05 04:17:38,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:38,215 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 384 transitions. [2022-04-05 04:17:38,215 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:38,215 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 384 transitions. [2022-04-05 04:17:38,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-04-05 04:17:38,216 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:38,216 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:38,216 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 04:17:38,216 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:38,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:38,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1310252391, now seen corresponding path program 1 times [2022-04-05 04:17:38,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:38,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837828131] [2022-04-05 04:17:38,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:38,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:17:38,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:38,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837828131] [2022-04-05 04:17:38,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837828131] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:38,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:38,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:38,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119803291] [2022-04-05 04:17:38,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:38,304 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:38,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:38,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:38,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:38,305 INFO L87 Difference]: Start difference. First operand 257 states and 384 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:40,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:17:40,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:40,683 INFO L93 Difference]: Finished difference Result 274 states and 405 transitions. [2022-04-05 04:17:40,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:40,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-04-05 04:17:40,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:40,685 INFO L225 Difference]: With dead ends: 274 [2022-04-05 04:17:40,685 INFO L226 Difference]: Without dead ends: 274 [2022-04-05 04:17:40,685 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 04:17:40,685 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 34 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:40,686 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 490 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 378 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:17:40,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-04-05 04:17:40,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 257. [2022-04-05 04:17:40,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.503968253968254) internal successors, (379), 252 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:40,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 383 transitions. [2022-04-05 04:17:40,690 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 383 transitions. Word has length 89 [2022-04-05 04:17:40,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:40,690 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 383 transitions. [2022-04-05 04:17:40,690 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:40,690 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 383 transitions. [2022-04-05 04:17:40,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-04-05 04:17:40,691 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:40,691 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:40,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 04:17:40,691 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:40,691 INFO L85 PathProgramCache]: Analyzing trace with hash 500536592, now seen corresponding path program 1 times [2022-04-05 04:17:40,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:40,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913262291] [2022-04-05 04:17:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:40,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:40,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:40,788 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:17:40,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:40,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913262291] [2022-04-05 04:17:40,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913262291] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:40,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:40,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:40,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995675515] [2022-04-05 04:17:40,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:40,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:40,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:40,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:40,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:40,790 INFO L87 Difference]: Start difference. First operand 257 states and 383 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 04:17:42,800 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 04:17:43,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:43,273 INFO L93 Difference]: Finished difference Result 365 states and 543 transitions. [2022-04-05 04:17:43,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:43,273 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 93 [2022-04-05 04:17:43,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:43,275 INFO L225 Difference]: With dead ends: 365 [2022-04-05 04:17:43,275 INFO L226 Difference]: Without dead ends: 363 [2022-04-05 04:17:43,275 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 04:17:43,275 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 110 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:43,275 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 337 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:17:43,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-04-05 04:17:43,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 282. [2022-04-05 04:17:43,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5451263537906137) internal successors, (428), 277 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 04:17:43,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2022-04-05 04:17:43,279 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 93 [2022-04-05 04:17:43,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:43,280 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2022-04-05 04:17:43,280 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 04:17:43,280 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2022-04-05 04:17:43,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-05 04:17:43,281 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:43,281 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:43,281 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 04:17:43,281 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:43,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:43,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2143278373, now seen corresponding path program 1 times [2022-04-05 04:17:43,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:43,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064223195] [2022-04-05 04:17:43,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:43,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:43,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:43,386 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 04:17:43,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:43,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064223195] [2022-04-05 04:17:43,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064223195] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:43,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:43,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:43,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999791336] [2022-04-05 04:17:43,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:43,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:43,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:43,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:43,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:43,388 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:44,745 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 04:17:46,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:17:48,802 WARN L534 Checker$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 04:17:50,831 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 04:17:51,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:51,346 INFO L93 Difference]: Finished difference Result 383 states and 581 transitions. [2022-04-05 04:17:51,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:51,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-05 04:17:51,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:51,348 INFO L225 Difference]: With dead ends: 383 [2022-04-05 04:17:51,348 INFO L226 Difference]: Without dead ends: 383 [2022-04-05 04:17:51,348 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 04:17:51,348 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 82 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:51,349 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 482 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 517 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-04-05 04:17:51,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-04-05 04:17:51,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 316. [2022-04-05 04:17:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.5530546623794212) internal successors, (483), 311 states have internal predecessors, (483), 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 04:17:51,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 487 transitions. [2022-04-05 04:17:51,353 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 487 transitions. Word has length 122 [2022-04-05 04:17:51,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:51,353 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 487 transitions. [2022-04-05 04:17:51,353 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 487 transitions. [2022-04-05 04:17:51,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-05 04:17:51,354 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:51,354 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:51,354 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 04:17:51,355 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:51,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:51,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1708077500, now seen corresponding path program 1 times [2022-04-05 04:17:51,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:51,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438814316] [2022-04-05 04:17:51,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:51,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:51,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:51,460 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 04:17:51,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:51,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438814316] [2022-04-05 04:17:51,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438814316] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:51,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:51,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:51,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968063057] [2022-04-05 04:17:51,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:51,461 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:51,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:51,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:51,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:51,461 INFO L87 Difference]: Start difference. First operand 316 states and 487 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:53,469 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 04:17:53,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:53,927 INFO L93 Difference]: Finished difference Result 435 states and 661 transitions. [2022-04-05 04:17:53,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:53,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-05 04:17:53,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:53,929 INFO L225 Difference]: With dead ends: 435 [2022-04-05 04:17:53,929 INFO L226 Difference]: Without dead ends: 435 [2022-04-05 04:17:53,929 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 04:17:53,929 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 117 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:53,929 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 353 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:17:53,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-04-05 04:17:53,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 314. [2022-04-05 04:17:53,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5533980582524272) internal successors, (480), 309 states have internal predecessors, (480), 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 04:17:53,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 484 transitions. [2022-04-05 04:17:53,933 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 484 transitions. Word has length 122 [2022-04-05 04:17:53,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:53,934 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 484 transitions. [2022-04-05 04:17:53,934 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:53,934 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 484 transitions. [2022-04-05 04:17:53,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-04-05 04:17:53,935 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:53,935 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:53,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 04:17:53,935 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:53,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:53,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1257864063, now seen corresponding path program 1 times [2022-04-05 04:17:53,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:53,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609992325] [2022-04-05 04:17:53,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:53,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:54,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:54,021 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 04:17:54,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:54,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609992325] [2022-04-05 04:17:54,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609992325] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:54,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:54,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:54,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483913733] [2022-04-05 04:17:54,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:54,022 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:54,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:54,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:54,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:54,023 INFO L87 Difference]: Start difference. First operand 314 states and 484 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:56,046 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 04:17:56,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:56,485 INFO L93 Difference]: Finished difference Result 385 states and 575 transitions. [2022-04-05 04:17:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:56,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2022-04-05 04:17:56,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:56,494 INFO L225 Difference]: With dead ends: 385 [2022-04-05 04:17:56,494 INFO L226 Difference]: Without dead ends: 385 [2022-04-05 04:17:56,494 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 04:17:56,495 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 140 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:56,495 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:17:56,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-04-05 04:17:56,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 314. [2022-04-05 04:17:56,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5372168284789645) internal successors, (475), 309 states have internal predecessors, (475), 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 04:17:56,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 479 transitions. [2022-04-05 04:17:56,499 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 479 transitions. Word has length 128 [2022-04-05 04:17:56,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:56,499 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 479 transitions. [2022-04-05 04:17:56,500 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:56,500 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 479 transitions. [2022-04-05 04:17:56,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-05 04:17:56,500 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:56,500 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:56,500 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 04:17:56,501 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:56,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:56,501 INFO L85 PathProgramCache]: Analyzing trace with hash -365757816, now seen corresponding path program 1 times [2022-04-05 04:17:56,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:56,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069409261] [2022-04-05 04:17:56,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:56,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:56,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:56,586 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 04:17:56,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:56,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069409261] [2022-04-05 04:17:56,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069409261] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:56,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:56,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:17:56,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553796738] [2022-04-05 04:17:56,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:56,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:17:56,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:56,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:17:56,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:17:56,588 INFO L87 Difference]: Start difference. First operand 314 states and 479 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:58,594 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 04:17:59,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:59,012 INFO L93 Difference]: Finished difference Result 597 states and 917 transitions. [2022-04-05 04:17:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:17:59,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-05 04:17:59,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:59,016 INFO L225 Difference]: With dead ends: 597 [2022-04-05 04:17:59,016 INFO L226 Difference]: Without dead ends: 597 [2022-04-05 04:17:59,017 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 04:17:59,017 INFO L913 BasicCegarLoop]: 370 mSDtfsCounter, 135 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:59,017 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 565 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:17:59,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-04-05 04:17:59,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2022-04-05 04:17:59,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 592 states have (on average 1.5422297297297298) internal successors, (913), 592 states have internal predecessors, (913), 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 04:17:59,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 917 transitions. [2022-04-05 04:17:59,026 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 917 transitions. Word has length 133 [2022-04-05 04:17:59,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:59,027 INFO L478 AbstractCegarLoop]: Abstraction has 597 states and 917 transitions. [2022-04-05 04:17:59,027 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:59,027 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 917 transitions. [2022-04-05 04:17:59,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-05 04:17:59,028 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:59,028 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:59,028 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 04:17:59,029 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:59,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:59,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2066498295, now seen corresponding path program 1 times [2022-04-05 04:17:59,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:59,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725395176] [2022-04-05 04:17:59,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:59,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:59,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:59,164 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:17:59,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:59,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725395176] [2022-04-05 04:17:59,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725395176] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:59,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:59,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:17:59,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973847238] [2022-04-05 04:17:59,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:59,165 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:17:59,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:59,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:17:59,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:17:59,166 INFO L87 Difference]: Start difference. First operand 597 states and 917 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 04:18:01,179 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 04:18:01,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:01,477 INFO L93 Difference]: Finished difference Result 838 states and 1284 transitions. [2022-04-05 04:18:01,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:18:01,478 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 133 [2022-04-05 04:18:01,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:01,482 INFO L225 Difference]: With dead ends: 838 [2022-04-05 04:18:01,482 INFO L226 Difference]: Without dead ends: 838 [2022-04-05 04:18:01,482 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 04:18:01,483 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 138 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:01,483 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 438 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 267 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:18:01,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-04-05 04:18:01,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-04-05 04:18:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 833 states have (on average 1.5366146458583434) internal successors, (1280), 833 states have internal predecessors, (1280), 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 04:18:01,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1284 transitions. [2022-04-05 04:18:01,509 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1284 transitions. Word has length 133 [2022-04-05 04:18:01,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:01,509 INFO L478 AbstractCegarLoop]: Abstraction has 838 states and 1284 transitions. [2022-04-05 04:18:01,509 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 04:18:01,509 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1284 transitions. [2022-04-05 04:18:01,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-05 04:18:01,510 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:01,511 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:01,511 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 04:18:01,511 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:01,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:01,511 INFO L85 PathProgramCache]: Analyzing trace with hash -212152758, now seen corresponding path program 1 times [2022-04-05 04:18:01,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:01,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675713444] [2022-04-05 04:18:01,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:01,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:01,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-04-05 04:18:01,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:01,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675713444] [2022-04-05 04:18:01,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675713444] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:01,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:01,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:18:01,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308583526] [2022-04-05 04:18:01,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:01,600 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:18:01,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:01,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:18:01,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:18:01,600 INFO L87 Difference]: Start difference. First operand 838 states and 1284 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:03,615 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 04:18:03,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:03,838 INFO L93 Difference]: Finished difference Result 865 states and 1319 transitions. [2022-04-05 04:18:03,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:18:03,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-05 04:18:03,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:03,853 INFO L225 Difference]: With dead ends: 865 [2022-04-05 04:18:03,853 INFO L226 Difference]: Without dead ends: 865 [2022-04-05 04:18:03,853 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 04:18:03,854 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:03,854 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 232 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:18:03,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-04-05 04:18:03,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2022-04-05 04:18:03,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 860 states have (on average 1.5290697674418605) internal successors, (1315), 860 states have internal predecessors, (1315), 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 04:18:03,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1319 transitions. [2022-04-05 04:18:03,863 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1319 transitions. Word has length 133 [2022-04-05 04:18:03,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:03,864 INFO L478 AbstractCegarLoop]: Abstraction has 865 states and 1319 transitions. [2022-04-05 04:18:03,864 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:03,864 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1319 transitions. [2022-04-05 04:18:03,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-05 04:18:03,865 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:03,865 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:03,865 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 04:18:03,865 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:03,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:03,866 INFO L85 PathProgramCache]: Analyzing trace with hash 864400651, now seen corresponding path program 1 times [2022-04-05 04:18:03,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:03,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278804961] [2022-04-05 04:18:03,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:03,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:03,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:03,938 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-04-05 04:18:03,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:03,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278804961] [2022-04-05 04:18:03,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278804961] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:03,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:03,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:18:03,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132604189] [2022-04-05 04:18:03,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:03,939 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:18:03,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:03,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:18:03,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:18:03,940 INFO L87 Difference]: Start difference. First operand 865 states and 1319 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:05,947 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 04:18:06,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:06,201 INFO L93 Difference]: Finished difference Result 867 states and 1321 transitions. [2022-04-05 04:18:06,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:18:06,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-05 04:18:06,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:06,204 INFO L225 Difference]: With dead ends: 867 [2022-04-05 04:18:06,204 INFO L226 Difference]: Without dead ends: 867 [2022-04-05 04:18:06,204 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 04:18:06,204 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 4 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:06,205 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:18:06,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2022-04-05 04:18:06,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2022-04-05 04:18:06,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.5278422273781902) internal successors, (1317), 862 states have internal predecessors, (1317), 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 04:18:06,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1321 transitions. [2022-04-05 04:18:06,214 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1321 transitions. Word has length 133 [2022-04-05 04:18:06,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:06,214 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1321 transitions. [2022-04-05 04:18:06,214 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:06,214 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1321 transitions. [2022-04-05 04:18:06,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-04-05 04:18:06,216 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:06,216 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:06,216 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 04:18:06,216 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:06,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:06,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1563265549, now seen corresponding path program 1 times [2022-04-05 04:18:06,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:06,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738592533] [2022-04-05 04:18:06,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:06,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:06,375 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-04-05 04:18:06,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:06,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738592533] [2022-04-05 04:18:06,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738592533] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:06,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:06,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:06,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187353347] [2022-04-05 04:18:06,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:06,376 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:06,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:06,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:06,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:06,377 INFO L87 Difference]: Start difference. First operand 867 states and 1321 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:08,385 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 04:18:08,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:08,937 INFO L93 Difference]: Finished difference Result 1296 states and 1961 transitions. [2022-04-05 04:18:08,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:08,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 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 213 [2022-04-05 04:18:08,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:08,941 INFO L225 Difference]: With dead ends: 1296 [2022-04-05 04:18:08,941 INFO L226 Difference]: Without dead ends: 1296 [2022-04-05 04:18:08,942 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 04:18:08,943 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 110 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:08,944 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 325 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:18:08,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2022-04-05 04:18:08,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1083. [2022-04-05 04:18:08,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5510204081632653) internal successors, (1672), 1078 states have internal predecessors, (1672), 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 04:18:08,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1676 transitions. [2022-04-05 04:18:08,956 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1676 transitions. Word has length 213 [2022-04-05 04:18:08,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:08,956 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1676 transitions. [2022-04-05 04:18:08,957 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:08,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1676 transitions. [2022-04-05 04:18:08,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-04-05 04:18:08,958 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:08,959 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:08,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 04:18:08,959 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:08,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:08,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1764133390, now seen corresponding path program 1 times [2022-04-05 04:18:08,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:08,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785517082] [2022-04-05 04:18:08,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:08,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:09,064 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-04-05 04:18:09,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:09,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785517082] [2022-04-05 04:18:09,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785517082] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:09,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:09,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:09,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360988780] [2022-04-05 04:18:09,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:09,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:09,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:09,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:09,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:09,065 INFO L87 Difference]: Start difference. First operand 1083 states and 1676 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 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 04:18:10,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:18:12,441 WARN L534 Checker$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 04:18:14,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:18:16,491 WARN L534 Checker$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 04:18:16,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:16,954 INFO L93 Difference]: Finished difference Result 1182 states and 1801 transitions. [2022-04-05 04:18:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:16,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 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 214 [2022-04-05 04:18:16,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:16,964 INFO L225 Difference]: With dead ends: 1182 [2022-04-05 04:18:16,964 INFO L226 Difference]: Without dead ends: 1182 [2022-04-05 04:18:16,964 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 04:18:16,965 INFO L913 BasicCegarLoop]: 260 mSDtfsCounter, 75 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:16,967 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 625 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 595 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-04-05 04:18:16,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2022-04-05 04:18:16,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1083. [2022-04-05 04:18:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.549165120593692) internal successors, (1670), 1078 states have internal predecessors, (1670), 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 04:18:16,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1674 transitions. [2022-04-05 04:18:16,980 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1674 transitions. Word has length 214 [2022-04-05 04:18:16,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:16,980 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1674 transitions. [2022-04-05 04:18:16,980 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 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 04:18:16,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1674 transitions. [2022-04-05 04:18:16,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-04-05 04:18:16,982 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:16,982 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:16,983 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 04:18:16,983 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:16,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:16,983 INFO L85 PathProgramCache]: Analyzing trace with hash -594230739, now seen corresponding path program 1 times [2022-04-05 04:18:16,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:16,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141337494] [2022-04-05 04:18:16,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:16,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:17,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:17,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:17,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141337494] [2022-04-05 04:18:17,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141337494] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:17,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:17,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:17,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110037120] [2022-04-05 04:18:17,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:17,114 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:17,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:17,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:17,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:17,114 INFO L87 Difference]: Start difference. First operand 1083 states and 1674 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:19,122 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 04:18:19,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:19,579 INFO L93 Difference]: Finished difference Result 1180 states and 1797 transitions. [2022-04-05 04:18:19,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:19,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 228 [2022-04-05 04:18:19,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:19,582 INFO L225 Difference]: With dead ends: 1180 [2022-04-05 04:18:19,582 INFO L226 Difference]: Without dead ends: 1180 [2022-04-05 04:18:19,583 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 04:18:19,583 INFO L913 BasicCegarLoop]: 259 mSDtfsCounter, 96 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:19,583 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 623 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 589 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:18:19,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-04-05 04:18:19,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1083. [2022-04-05 04:18:19,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5473098330241188) internal successors, (1668), 1078 states have internal predecessors, (1668), 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 04:18:19,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1672 transitions. [2022-04-05 04:18:19,594 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1672 transitions. Word has length 228 [2022-04-05 04:18:19,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:19,594 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1672 transitions. [2022-04-05 04:18:19,594 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:19,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1672 transitions. [2022-04-05 04:18:19,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-04-05 04:18:19,596 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:19,596 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:19,596 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 04:18:19,596 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:19,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:19,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1637329481, now seen corresponding path program 1 times [2022-04-05 04:18:19,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:19,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104700045] [2022-04-05 04:18:19,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:19,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:19,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:19,695 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:19,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:19,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104700045] [2022-04-05 04:18:19,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104700045] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:19,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:19,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:19,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283278278] [2022-04-05 04:18:19,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:19,696 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:19,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:19,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:19,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:19,697 INFO L87 Difference]: Start difference. First operand 1083 states and 1672 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:21,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:18:22,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:22,191 INFO L93 Difference]: Finished difference Result 1160 states and 1769 transitions. [2022-04-05 04:18:22,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:22,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 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 232 [2022-04-05 04:18:22,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:22,194 INFO L225 Difference]: With dead ends: 1160 [2022-04-05 04:18:22,194 INFO L226 Difference]: Without dead ends: 1160 [2022-04-05 04:18:22,195 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 04:18:22,195 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 92 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:22,195 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 609 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 559 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:18:22,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-04-05 04:18:22,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1083. [2022-04-05 04:18:22,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5454545454545454) internal successors, (1666), 1078 states have internal predecessors, (1666), 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 04:18:22,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1670 transitions. [2022-04-05 04:18:22,206 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1670 transitions. Word has length 232 [2022-04-05 04:18:22,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:22,206 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1670 transitions. [2022-04-05 04:18:22,206 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:22,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1670 transitions. [2022-04-05 04:18:22,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-04-05 04:18:22,208 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:22,208 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:22,208 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 04:18:22,208 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:22,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:22,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1788020019, now seen corresponding path program 1 times [2022-04-05 04:18:22,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:22,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745673942] [2022-04-05 04:18:22,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:22,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:22,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:22,343 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:22,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:22,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745673942] [2022-04-05 04:18:22,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745673942] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:22,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:22,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:22,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339114305] [2022-04-05 04:18:22,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:22,344 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:22,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:22,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:22,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:22,345 INFO L87 Difference]: Start difference. First operand 1083 states and 1670 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:24,352 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 04:18:24,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:24,836 INFO L93 Difference]: Finished difference Result 1287 states and 1926 transitions. [2022-04-05 04:18:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:24,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 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 236 [2022-04-05 04:18:24,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:24,840 INFO L225 Difference]: With dead ends: 1287 [2022-04-05 04:18:24,840 INFO L226 Difference]: Without dead ends: 1287 [2022-04-05 04:18:24,840 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 04:18:24,841 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 127 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:24,841 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 372 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:18:24,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-04-05 04:18:24,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1083. [2022-04-05 04:18:24,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5324675324675325) internal successors, (1652), 1078 states have internal predecessors, (1652), 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 04:18:24,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1656 transitions. [2022-04-05 04:18:24,853 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1656 transitions. Word has length 236 [2022-04-05 04:18:24,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:24,853 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1656 transitions. [2022-04-05 04:18:24,853 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:24,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1656 transitions. [2022-04-05 04:18:24,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-04-05 04:18:24,855 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:24,855 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:24,855 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 04:18:24,855 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:24,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:24,855 INFO L85 PathProgramCache]: Analyzing trace with hash -2083420877, now seen corresponding path program 1 times [2022-04-05 04:18:24,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:24,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558648007] [2022-04-05 04:18:24,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:24,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:24,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:24,961 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:24,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:24,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558648007] [2022-04-05 04:18:24,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558648007] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:24,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:24,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:24,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073828243] [2022-04-05 04:18:24,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:24,962 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:24,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:24,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:24,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:24,963 INFO L87 Difference]: Start difference. First operand 1083 states and 1656 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:26,975 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 04:18:27,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:27,515 INFO L93 Difference]: Finished difference Result 1160 states and 1753 transitions. [2022-04-05 04:18:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:27,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 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 236 [2022-04-05 04:18:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:27,518 INFO L225 Difference]: With dead ends: 1160 [2022-04-05 04:18:27,518 INFO L226 Difference]: Without dead ends: 1160 [2022-04-05 04:18:27,519 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 04:18:27,519 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 80 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:27,519 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 605 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:18:27,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-04-05 04:18:27,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1083. [2022-04-05 04:18:27,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.530612244897959) internal successors, (1650), 1078 states have internal predecessors, (1650), 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 04:18:27,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1654 transitions. [2022-04-05 04:18:27,530 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1654 transitions. Word has length 236 [2022-04-05 04:18:27,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:27,530 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1654 transitions. [2022-04-05 04:18:27,530 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:27,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1654 transitions. [2022-04-05 04:18:27,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-04-05 04:18:27,532 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:27,532 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:27,532 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 04:18:27,532 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:27,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:27,533 INFO L85 PathProgramCache]: Analyzing trace with hash 993793841, now seen corresponding path program 1 times [2022-04-05 04:18:27,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:27,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032717080] [2022-04-05 04:18:27,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:27,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:27,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:27,648 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:27,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:27,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032717080] [2022-04-05 04:18:27,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032717080] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:27,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:27,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:27,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673517324] [2022-04-05 04:18:27,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:27,649 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:27,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:27,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:27,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:27,650 INFO L87 Difference]: Start difference. First operand 1083 states and 1654 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:29,663 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 04:18:30,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:30,118 INFO L93 Difference]: Finished difference Result 1150 states and 1737 transitions. [2022-04-05 04:18:30,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:30,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 237 [2022-04-05 04:18:30,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:30,122 INFO L225 Difference]: With dead ends: 1150 [2022-04-05 04:18:30,122 INFO L226 Difference]: Without dead ends: 1150 [2022-04-05 04:18:30,122 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 04:18:30,122 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 76 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:30,123 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 597 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 542 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:18:30,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2022-04-05 04:18:30,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1083. [2022-04-05 04:18:30,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.528756957328386) internal successors, (1648), 1078 states have internal predecessors, (1648), 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 04:18:30,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1652 transitions. [2022-04-05 04:18:30,132 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1652 transitions. Word has length 237 [2022-04-05 04:18:30,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:30,133 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1652 transitions. [2022-04-05 04:18:30,133 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:30,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1652 transitions. [2022-04-05 04:18:30,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-04-05 04:18:30,135 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:30,135 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:30,135 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 04:18:30,135 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:30,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:30,135 INFO L85 PathProgramCache]: Analyzing trace with hash 724224944, now seen corresponding path program 1 times [2022-04-05 04:18:30,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:30,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561916787] [2022-04-05 04:18:30,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:30,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:30,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:30,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:30,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561916787] [2022-04-05 04:18:30,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561916787] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:30,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:30,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:30,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079142262] [2022-04-05 04:18:30,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:30,236 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:30,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:30,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:30,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:30,237 INFO L87 Difference]: Start difference. First operand 1083 states and 1652 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:32,247 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 04:18:32,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:32,667 INFO L93 Difference]: Finished difference Result 1142 states and 1725 transitions. [2022-04-05 04:18:32,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:32,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 237 [2022-04-05 04:18:32,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:32,670 INFO L225 Difference]: With dead ends: 1142 [2022-04-05 04:18:32,670 INFO L226 Difference]: Without dead ends: 1142 [2022-04-05 04:18:32,671 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 04:18:32,671 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 69 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:32,671 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 589 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 531 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:18:32,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-04-05 04:18:32,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1083. [2022-04-05 04:18:32,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5269016697588127) internal successors, (1646), 1078 states have internal predecessors, (1646), 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 04:18:32,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1650 transitions. [2022-04-05 04:18:32,682 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1650 transitions. Word has length 237 [2022-04-05 04:18:32,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:32,682 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1650 transitions. [2022-04-05 04:18:32,682 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:32,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1650 transitions. [2022-04-05 04:18:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-04-05 04:18:32,684 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:32,684 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:32,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 04:18:32,684 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:32,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:32,685 INFO L85 PathProgramCache]: Analyzing trace with hash 799309157, now seen corresponding path program 1 times [2022-04-05 04:18:32,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:32,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095381008] [2022-04-05 04:18:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:32,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:32,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:32,845 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:32,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:32,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095381008] [2022-04-05 04:18:32,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095381008] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:32,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:32,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:32,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409106171] [2022-04-05 04:18:32,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:32,846 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:32,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:32,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:32,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:32,846 INFO L87 Difference]: Start difference. First operand 1083 states and 1650 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:34,855 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 04:18:35,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:35,276 INFO L93 Difference]: Finished difference Result 1142 states and 1723 transitions. [2022-04-05 04:18:35,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:35,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 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 239 [2022-04-05 04:18:35,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:35,279 INFO L225 Difference]: With dead ends: 1142 [2022-04-05 04:18:35,279 INFO L226 Difference]: Without dead ends: 1142 [2022-04-05 04:18:35,279 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 04:18:35,280 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 65 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:35,280 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 587 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:18:35,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-04-05 04:18:35,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1083. [2022-04-05 04:18:35,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5250463821892393) internal successors, (1644), 1078 states have internal predecessors, (1644), 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 04:18:35,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1648 transitions. [2022-04-05 04:18:35,289 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1648 transitions. Word has length 239 [2022-04-05 04:18:35,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:35,289 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1648 transitions. [2022-04-05 04:18:35,289 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:35,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1648 transitions. [2022-04-05 04:18:35,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-04-05 04:18:35,291 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:35,291 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:35,291 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 04:18:35,291 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:35,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:35,292 INFO L85 PathProgramCache]: Analyzing trace with hash 858623079, now seen corresponding path program 1 times [2022-04-05 04:18:35,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:35,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292042379] [2022-04-05 04:18:35,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:35,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:35,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:35,391 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:35,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:35,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292042379] [2022-04-05 04:18:35,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292042379] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:35,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:35,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:35,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814265934] [2022-04-05 04:18:35,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:35,392 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:35,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:35,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:35,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:35,393 INFO L87 Difference]: Start difference. First operand 1083 states and 1648 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 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 04:18:37,407 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 04:18:37,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:37,792 INFO L93 Difference]: Finished difference Result 1126 states and 1695 transitions. [2022-04-05 04:18:37,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:37,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 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 240 [2022-04-05 04:18:37,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:37,795 INFO L225 Difference]: With dead ends: 1126 [2022-04-05 04:18:37,795 INFO L226 Difference]: Without dead ends: 1126 [2022-04-05 04:18:37,795 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 04:18:37,796 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 54 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:37,796 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 577 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:18:37,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-04-05 04:18:37,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1083. [2022-04-05 04:18:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.523191094619666) internal successors, (1642), 1078 states have internal predecessors, (1642), 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 04:18:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1646 transitions. [2022-04-05 04:18:37,807 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1646 transitions. Word has length 240 [2022-04-05 04:18:37,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:37,807 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1646 transitions. [2022-04-05 04:18:37,807 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 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 04:18:37,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1646 transitions. [2022-04-05 04:18:37,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-04-05 04:18:37,809 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:37,809 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:37,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 04:18:37,809 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:37,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:37,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1164096122, now seen corresponding path program 1 times [2022-04-05 04:18:37,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:37,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143804133] [2022-04-05 04:18:37,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:37,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:37,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:37,941 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:37,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:37,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143804133] [2022-04-05 04:18:37,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143804133] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:37,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:37,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:37,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941321878] [2022-04-05 04:18:37,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:37,942 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:37,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:37,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:37,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:37,942 INFO L87 Difference]: Start difference. First operand 1083 states and 1646 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:39,955 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 04:18:40,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:40,393 INFO L93 Difference]: Finished difference Result 1413 states and 2109 transitions. [2022-04-05 04:18:40,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:40,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 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 04:18:40,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:40,396 INFO L225 Difference]: With dead ends: 1413 [2022-04-05 04:18:40,396 INFO L226 Difference]: Without dead ends: 1413 [2022-04-05 04:18:40,397 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 04:18:40,397 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 119 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:40,397 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 325 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:18:40,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-04-05 04:18:40,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1173. [2022-04-05 04:18:40,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5171232876712328) internal successors, (1772), 1168 states have internal predecessors, (1772), 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 04:18:40,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1776 transitions. [2022-04-05 04:18:40,407 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1776 transitions. Word has length 241 [2022-04-05 04:18:40,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:40,407 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1776 transitions. [2022-04-05 04:18:40,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:40,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1776 transitions. [2022-04-05 04:18:40,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-04-05 04:18:40,409 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:40,410 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:40,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 04:18:40,410 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:40,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:40,410 INFO L85 PathProgramCache]: Analyzing trace with hash -2061310594, now seen corresponding path program 1 times [2022-04-05 04:18:40,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:40,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438637955] [2022-04-05 04:18:40,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:40,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:40,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:40,518 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:40,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:40,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438637955] [2022-04-05 04:18:40,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438637955] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:40,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:40,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:40,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303304822] [2022-04-05 04:18:40,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:40,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:40,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:40,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:40,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:40,521 INFO L87 Difference]: Start difference. First operand 1173 states and 1776 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:41,946 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 04:18:43,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:18:45,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:18:48,023 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 04:18:48,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:48,399 INFO L93 Difference]: Finished difference Result 1216 states and 1823 transitions. [2022-04-05 04:18:48,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:48,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-04-05 04:18:48,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:48,402 INFO L225 Difference]: With dead ends: 1216 [2022-04-05 04:18:48,402 INFO L226 Difference]: Without dead ends: 1216 [2022-04-05 04:18:48,403 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 04:18:48,403 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 55 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:48,403 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 573 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 493 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-04-05 04:18:48,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-04-05 04:18:48,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1173. [2022-04-05 04:18:48,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5154109589041096) internal successors, (1770), 1168 states have internal predecessors, (1770), 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 04:18:48,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1774 transitions. [2022-04-05 04:18:48,412 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1774 transitions. Word has length 242 [2022-04-05 04:18:48,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:48,413 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1774 transitions. [2022-04-05 04:18:48,413 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:48,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1774 transitions. [2022-04-05 04:18:48,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-04-05 04:18:48,414 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:48,415 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:48,415 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 04:18:48,415 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:48,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:48,415 INFO L85 PathProgramCache]: Analyzing trace with hash -691949702, now seen corresponding path program 1 times [2022-04-05 04:18:48,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:48,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978272021] [2022-04-05 04:18:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:48,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:48,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:48,555 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:48,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:48,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978272021] [2022-04-05 04:18:48,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978272021] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:48,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:48,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:48,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918909019] [2022-04-05 04:18:48,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:48,556 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:48,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:48,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:48,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:48,557 INFO L87 Difference]: Start difference. First operand 1173 states and 1774 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:50,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:18:50,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:50,961 INFO L93 Difference]: Finished difference Result 1212 states and 1817 transitions. [2022-04-05 04:18:50,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:50,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-04-05 04:18:50,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:50,964 INFO L225 Difference]: With dead ends: 1212 [2022-04-05 04:18:50,964 INFO L226 Difference]: Without dead ends: 1212 [2022-04-05 04:18:50,964 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 04:18:50,964 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 48 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:50,965 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 569 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:18:50,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-04-05 04:18:50,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1173. [2022-04-05 04:18:50,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5136986301369864) internal successors, (1768), 1168 states have internal predecessors, (1768), 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 04:18:50,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1772 transitions. [2022-04-05 04:18:50,974 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1772 transitions. Word has length 242 [2022-04-05 04:18:50,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:50,974 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1772 transitions. [2022-04-05 04:18:50,974 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:50,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1772 transitions. [2022-04-05 04:18:50,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-04-05 04:18:50,976 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:50,976 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:50,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 04:18:50,976 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:50,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:50,977 INFO L85 PathProgramCache]: Analyzing trace with hash 273964732, now seen corresponding path program 1 times [2022-04-05 04:18:50,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:50,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914214510] [2022-04-05 04:18:50,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:50,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:51,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:51,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:51,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914214510] [2022-04-05 04:18:51,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914214510] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:51,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:51,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:51,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011177124] [2022-04-05 04:18:51,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:51,094 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:51,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:51,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:51,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:51,094 INFO L87 Difference]: Start difference. First operand 1173 states and 1772 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:53,119 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 04:18:53,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:53,542 INFO L93 Difference]: Finished difference Result 1208 states and 1809 transitions. [2022-04-05 04:18:53,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:53,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 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 04:18:53,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:53,545 INFO L225 Difference]: With dead ends: 1208 [2022-04-05 04:18:53,545 INFO L226 Difference]: Without dead ends: 1208 [2022-04-05 04:18:53,545 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 04:18:53,545 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 50 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:53,546 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 567 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:18:53,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-04-05 04:18:53,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1173. [2022-04-05 04:18:53,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5119863013698631) internal successors, (1766), 1168 states have internal predecessors, (1766), 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 04:18:53,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1770 transitions. [2022-04-05 04:18:53,559 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1770 transitions. Word has length 243 [2022-04-05 04:18:53,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:53,559 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1770 transitions. [2022-04-05 04:18:53,559 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:53,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1770 transitions. [2022-04-05 04:18:53,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-04-05 04:18:53,561 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:53,561 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-04-05 04:18:53,561 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 04:18:53,561 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:53,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:53,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1984975413, now seen corresponding path program 1 times [2022-04-05 04:18:53,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:53,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848222774] [2022-04-05 04:18:53,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:53,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:53,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:53,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:53,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848222774] [2022-04-05 04:18:53,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848222774] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:53,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:53,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:53,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712791561] [2022-04-05 04:18:53,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:53,681 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:53,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:53,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:53,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:53,682 INFO L87 Difference]: Start difference. First operand 1173 states and 1770 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:55,695 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 04:18:56,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:56,165 INFO L93 Difference]: Finished difference Result 1503 states and 2239 transitions. [2022-04-05 04:18:56,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:56,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 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 245 [2022-04-05 04:18:56,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:56,168 INFO L225 Difference]: With dead ends: 1503 [2022-04-05 04:18:56,168 INFO L226 Difference]: Without dead ends: 1503 [2022-04-05 04:18:56,168 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 04:18:56,168 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 116 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:56,168 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:18:56,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-04-05 04:18:56,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1272. [2022-04-05 04:18:56,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1267 states have (on average 1.5130228887134964) internal successors, (1917), 1267 states have internal predecessors, (1917), 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 04:18:56,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1921 transitions. [2022-04-05 04:18:56,181 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1921 transitions. Word has length 245 [2022-04-05 04:18:56,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:56,182 INFO L478 AbstractCegarLoop]: Abstraction has 1272 states and 1921 transitions. [2022-04-05 04:18:56,182 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:56,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1921 transitions. [2022-04-05 04:18:56,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-04-05 04:18:56,186 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:56,187 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2022-04-05 04:18:56,187 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 04:18:56,187 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:56,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:56,188 INFO L85 PathProgramCache]: Analyzing trace with hash -443370408, now seen corresponding path program 1 times [2022-04-05 04:18:56,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:56,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297139724] [2022-04-05 04:18:56,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:56,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:56,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:56,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:56,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297139724] [2022-04-05 04:18:56,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297139724] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:56,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:56,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:56,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696022058] [2022-04-05 04:18:56,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:56,293 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:56,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:56,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:56,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:56,295 INFO L87 Difference]: Start difference. First operand 1272 states and 1921 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:58,302 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 04:18:58,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:58,685 INFO L93 Difference]: Finished difference Result 1299 states and 1948 transitions. [2022-04-05 04:18:58,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:58,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-04-05 04:18:58,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:58,687 INFO L225 Difference]: With dead ends: 1299 [2022-04-05 04:18:58,687 INFO L226 Difference]: Without dead ends: 1299 [2022-04-05 04:18:58,688 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 04:18:58,688 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 38 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:58,688 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 557 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:18:58,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2022-04-05 04:18:58,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1272. [2022-04-05 04:18:58,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1267 states have (on average 1.511444356748224) internal successors, (1915), 1267 states have internal predecessors, (1915), 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 04:18:58,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1919 transitions. [2022-04-05 04:18:58,702 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1919 transitions. Word has length 246 [2022-04-05 04:18:58,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:58,702 INFO L478 AbstractCegarLoop]: Abstraction has 1272 states and 1919 transitions. [2022-04-05 04:18:58,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:58,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1919 transitions. [2022-04-05 04:18:58,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-04-05 04:18:58,704 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:58,705 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-04-05 04:18:58,705 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 04:18:58,705 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:58,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:58,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1923509620, now seen corresponding path program 1 times [2022-04-05 04:18:58,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:58,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583556538] [2022-04-05 04:18:58,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:58,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:58,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:58,836 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:18:58,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:58,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583556538] [2022-04-05 04:18:58,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583556538] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:58,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:58,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:58,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481451689] [2022-04-05 04:18:58,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:58,836 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:58,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:58,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:58,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:58,837 INFO L87 Difference]: Start difference. First operand 1272 states and 1919 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:00,846 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 04:19:01,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:01,257 INFO L93 Difference]: Finished difference Result 1602 states and 2382 transitions. [2022-04-05 04:19:01,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:01,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-04-05 04:19:01,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:01,260 INFO L225 Difference]: With dead ends: 1602 [2022-04-05 04:19:01,260 INFO L226 Difference]: Without dead ends: 1602 [2022-04-05 04:19:01,261 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 04:19:01,261 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 114 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:01,261 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:19:01,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-04-05 04:19:01,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1377. [2022-04-05 04:19:01,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1372 states have (on average 1.510204081632653) internal successors, (2072), 1372 states have internal predecessors, (2072), 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 04:19:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2076 transitions. [2022-04-05 04:19:01,274 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2076 transitions. Word has length 246 [2022-04-05 04:19:01,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:01,274 INFO L478 AbstractCegarLoop]: Abstraction has 1377 states and 2076 transitions. [2022-04-05 04:19:01,274 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:01,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2076 transitions. [2022-04-05 04:19:01,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-04-05 04:19:01,276 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:01,276 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-04-05 04:19:01,276 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 04:19:01,276 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:01,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:01,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1170471363, now seen corresponding path program 1 times [2022-04-05 04:19:01,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:01,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914787758] [2022-04-05 04:19:01,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:01,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:01,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-05 04:19:01,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:01,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914787758] [2022-04-05 04:19:01,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914787758] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:01,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:01,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:01,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282833643] [2022-04-05 04:19:01,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:01,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:01,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:01,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:01,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:01,394 INFO L87 Difference]: Start difference. First operand 1377 states and 2076 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:03,403 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 04:19:03,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:03,753 INFO L93 Difference]: Finished difference Result 1400 states and 2099 transitions. [2022-04-05 04:19:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:03,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 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 247 [2022-04-05 04:19:03,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:03,755 INFO L225 Difference]: With dead ends: 1400 [2022-04-05 04:19:03,755 INFO L226 Difference]: Without dead ends: 1400 [2022-04-05 04:19:03,755 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 04:19:03,756 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 33 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:03,756 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 551 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:19:03,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2022-04-05 04:19:03,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1377. [2022-04-05 04:19:03,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1372 states have (on average 1.5087463556851313) internal successors, (2070), 1372 states have internal predecessors, (2070), 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 04:19:03,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2074 transitions. [2022-04-05 04:19:03,780 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2074 transitions. Word has length 247 [2022-04-05 04:19:03,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:03,781 INFO L478 AbstractCegarLoop]: Abstraction has 1377 states and 2074 transitions. [2022-04-05 04:19:03,781 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:03,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2074 transitions. [2022-04-05 04:19:03,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-04-05 04:19:03,783 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:03,783 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-04-05 04:19:03,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 04:19:03,783 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:03,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:03,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1312124425, now seen corresponding path program 1 times [2022-04-05 04:19:03,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:03,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788692070] [2022-04-05 04:19:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:03,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:03,891 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-04-05 04:19:03,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:03,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788692070] [2022-04-05 04:19:03,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788692070] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:03,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:03,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:03,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300110628] [2022-04-05 04:19:03,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:03,891 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:03,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:03,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:03,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:03,892 INFO L87 Difference]: Start difference. First operand 1377 states and 2074 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 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 04:19:05,899 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 04:19:06,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:06,316 INFO L93 Difference]: Finished difference Result 1707 states and 2534 transitions. [2022-04-05 04:19:06,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:06,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 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 247 [2022-04-05 04:19:06,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:06,319 INFO L225 Difference]: With dead ends: 1707 [2022-04-05 04:19:06,319 INFO L226 Difference]: Without dead ends: 1707 [2022-04-05 04:19:06,319 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 04:19:06,320 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 112 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:06,320 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:19:06,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2022-04-05 04:19:06,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1488. [2022-04-05 04:19:06,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1483 states have (on average 1.5077545515846258) internal successors, (2236), 1483 states have internal predecessors, (2236), 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 04:19:06,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2240 transitions. [2022-04-05 04:19:06,331 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2240 transitions. Word has length 247 [2022-04-05 04:19:06,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:06,331 INFO L478 AbstractCegarLoop]: Abstraction has 1488 states and 2240 transitions. [2022-04-05 04:19:06,332 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 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 04:19:06,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2240 transitions. [2022-04-05 04:19:06,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-04-05 04:19:06,334 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:06,334 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-04-05 04:19:06,334 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 04:19:06,334 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:06,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:06,334 INFO L85 PathProgramCache]: Analyzing trace with hash -89380643, now seen corresponding path program 1 times [2022-04-05 04:19:06,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:06,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955085590] [2022-04-05 04:19:06,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:06,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:06,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-04-05 04:19:06,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:06,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955085590] [2022-04-05 04:19:06,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955085590] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:06,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:06,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:06,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392766712] [2022-04-05 04:19:06,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:06,454 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:06,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:06,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:06,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:06,454 INFO L87 Difference]: Start difference. First operand 1488 states and 2240 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:08,467 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 04:19:08,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:08,818 INFO L93 Difference]: Finished difference Result 1507 states and 2259 transitions. [2022-04-05 04:19:08,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:08,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 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 248 [2022-04-05 04:19:08,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:08,822 INFO L225 Difference]: With dead ends: 1507 [2022-04-05 04:19:08,822 INFO L226 Difference]: Without dead ends: 1507 [2022-04-05 04:19:08,822 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 04:19:08,822 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 28 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:08,822 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 545 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:19:08,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2022-04-05 04:19:08,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1488. [2022-04-05 04:19:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1483 states have (on average 1.5064059339177343) internal successors, (2234), 1483 states have internal predecessors, (2234), 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 04:19:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2238 transitions. [2022-04-05 04:19:08,833 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2238 transitions. Word has length 248 [2022-04-05 04:19:08,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:08,833 INFO L478 AbstractCegarLoop]: Abstraction has 1488 states and 2238 transitions. [2022-04-05 04:19:08,833 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:08,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2238 transitions. [2022-04-05 04:19:08,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-04-05 04:19:08,835 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:08,835 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 04:19:08,836 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-05 04:19:08,836 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:08,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:08,836 INFO L85 PathProgramCache]: Analyzing trace with hash -869309252, now seen corresponding path program 1 times [2022-04-05 04:19:08,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:08,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541229745] [2022-04-05 04:19:08,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:08,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:08,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:08,959 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-04-05 04:19:08,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:08,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541229745] [2022-04-05 04:19:08,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541229745] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:08,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:08,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:08,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633051274] [2022-04-05 04:19:08,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:08,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:08,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:08,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:08,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:08,961 INFO L87 Difference]: Start difference. First operand 1488 states and 2238 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:10,975 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 04:19:11,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:11,377 INFO L93 Difference]: Finished difference Result 1818 states and 2673 transitions. [2022-04-05 04:19:11,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:11,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 253 [2022-04-05 04:19:11,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:11,380 INFO L225 Difference]: With dead ends: 1818 [2022-04-05 04:19:11,380 INFO L226 Difference]: Without dead ends: 1818 [2022-04-05 04:19:11,380 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 04:19:11,380 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:11,380 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 362 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:19:11,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2022-04-05 04:19:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1545. [2022-04-05 04:19:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4837662337662338) internal successors, (2285), 1540 states have internal predecessors, (2285), 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 04:19:11,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2289 transitions. [2022-04-05 04:19:11,393 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2289 transitions. Word has length 253 [2022-04-05 04:19:11,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:11,393 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2289 transitions. [2022-04-05 04:19:11,393 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:11,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2289 transitions. [2022-04-05 04:19:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-04-05 04:19:11,395 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:11,395 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:11,396 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-05 04:19:11,396 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:11,396 INFO L85 PathProgramCache]: Analyzing trace with hash -48354360, now seen corresponding path program 1 times [2022-04-05 04:19:11,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:11,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792706966] [2022-04-05 04:19:11,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:11,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:11,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:11,496 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-04-05 04:19:11,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:11,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792706966] [2022-04-05 04:19:11,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792706966] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:11,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:11,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:11,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279831570] [2022-04-05 04:19:11,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:11,497 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:11,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:11,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:11,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:11,497 INFO L87 Difference]: Start difference. First operand 1545 states and 2289 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:13,504 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 04:19:13,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:13,856 INFO L93 Difference]: Finished difference Result 1564 states and 2308 transitions. [2022-04-05 04:19:13,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:13,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 254 [2022-04-05 04:19:13,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:13,858 INFO L225 Difference]: With dead ends: 1564 [2022-04-05 04:19:13,858 INFO L226 Difference]: Without dead ends: 1564 [2022-04-05 04:19:13,858 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 04:19:13,858 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 44 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:13,859 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 541 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:19:13,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-04-05 04:19:13,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1545. [2022-04-05 04:19:13,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4824675324675325) internal successors, (2283), 1540 states have internal predecessors, (2283), 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 04:19:13,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2287 transitions. [2022-04-05 04:19:13,870 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2287 transitions. Word has length 254 [2022-04-05 04:19:13,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:13,870 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2287 transitions. [2022-04-05 04:19:13,870 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:13,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2287 transitions. [2022-04-05 04:19:13,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-04-05 04:19:13,872 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:13,872 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:13,872 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-05 04:19:13,872 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:13,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:13,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1367824325, now seen corresponding path program 1 times [2022-04-05 04:19:13,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:13,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199114110] [2022-04-05 04:19:13,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:13,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:13,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:13,978 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-04-05 04:19:13,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:13,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199114110] [2022-04-05 04:19:13,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199114110] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:13,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:13,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:13,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941804255] [2022-04-05 04:19:13,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:13,979 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:13,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:13,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:13,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:13,979 INFO L87 Difference]: Start difference. First operand 1545 states and 2287 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:15,987 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 04:19:16,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:16,304 INFO L93 Difference]: Finished difference Result 1557 states and 2298 transitions. [2022-04-05 04:19:16,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:16,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 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 255 [2022-04-05 04:19:16,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:16,307 INFO L225 Difference]: With dead ends: 1557 [2022-04-05 04:19:16,307 INFO L226 Difference]: Without dead ends: 1557 [2022-04-05 04:19:16,307 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 04:19:16,308 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 40 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:16,308 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 535 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:19:16,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2022-04-05 04:19:16,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1545. [2022-04-05 04:19:16,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4811688311688311) internal successors, (2281), 1540 states have internal predecessors, (2281), 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 04:19:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2285 transitions. [2022-04-05 04:19:16,321 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2285 transitions. Word has length 255 [2022-04-05 04:19:16,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:16,322 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2285 transitions. [2022-04-05 04:19:16,322 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:16,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2285 transitions. [2022-04-05 04:19:16,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-04-05 04:19:16,324 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:16,324 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:16,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-05 04:19:16,324 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:16,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:16,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1074570741, now seen corresponding path program 1 times [2022-04-05 04:19:16,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:16,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970097686] [2022-04-05 04:19:16,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:16,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-04-05 04:19:16,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:16,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970097686] [2022-04-05 04:19:16,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970097686] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:16,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:16,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:16,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478507117] [2022-04-05 04:19:16,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:16,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:16,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:16,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:16,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:16,494 INFO L87 Difference]: Start difference. First operand 1545 states and 2285 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:18,502 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 04:19:19,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:19,019 INFO L93 Difference]: Finished difference Result 1813 states and 2657 transitions. [2022-04-05 04:19:19,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:19,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-04-05 04:19:19,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:19,021 INFO L225 Difference]: With dead ends: 1813 [2022-04-05 04:19:19,022 INFO L226 Difference]: Without dead ends: 1813 [2022-04-05 04:19:19,022 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 04:19:19,022 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 64 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:19,022 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 622 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 597 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:19:19,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2022-04-05 04:19:19,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1670. [2022-04-05 04:19:19,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1665 states have (on average 1.4828828828828828) internal successors, (2469), 1665 states have internal predecessors, (2469), 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 04:19:19,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2473 transitions. [2022-04-05 04:19:19,035 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2473 transitions. Word has length 257 [2022-04-05 04:19:19,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:19,036 INFO L478 AbstractCegarLoop]: Abstraction has 1670 states and 2473 transitions. [2022-04-05 04:19:19,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:19,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2473 transitions. [2022-04-05 04:19:19,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-04-05 04:19:19,038 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:19,038 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:19,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-05 04:19:19,039 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:19,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:19,039 INFO L85 PathProgramCache]: Analyzing trace with hash 2011154316, now seen corresponding path program 1 times [2022-04-05 04:19:19,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:19,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008133401] [2022-04-05 04:19:19,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:19,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:19,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:19,153 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-04-05 04:19:19,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:19,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008133401] [2022-04-05 04:19:19,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008133401] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:19,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:19,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:19:19,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424157424] [2022-04-05 04:19:19,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:19,154 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:19:19,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:19,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:19:19,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:19:19,154 INFO L87 Difference]: Start difference. First operand 1670 states and 2473 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:21,167 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 04:19:21,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:21,590 INFO L93 Difference]: Finished difference Result 2187 states and 3236 transitions. [2022-04-05 04:19:21,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:19:21,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 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 257 [2022-04-05 04:19:21,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:21,605 INFO L225 Difference]: With dead ends: 2187 [2022-04-05 04:19:21,605 INFO L226 Difference]: Without dead ends: 2187 [2022-04-05 04:19:21,605 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 04:19:21,606 INFO L913 BasicCegarLoop]: 376 mSDtfsCounter, 128 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:21,606 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 571 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:19:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-04-05 04:19:21,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2187. [2022-04-05 04:19:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 2182 states have (on average 1.4812098991750688) internal successors, (3232), 2182 states have internal predecessors, (3232), 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 04:19:21,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3236 transitions. [2022-04-05 04:19:21,656 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3236 transitions. Word has length 257 [2022-04-05 04:19:21,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:21,657 INFO L478 AbstractCegarLoop]: Abstraction has 2187 states and 3236 transitions. [2022-04-05 04:19:21,658 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:21,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3236 transitions. [2022-04-05 04:19:21,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-04-05 04:19:21,661 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:21,661 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:21,661 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-05 04:19:21,661 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:21,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:21,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2076861001, now seen corresponding path program 1 times [2022-04-05 04:19:21,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:21,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254811001] [2022-04-05 04:19:21,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:21,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:21,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:21,979 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-04-05 04:19:21,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:21,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254811001] [2022-04-05 04:19:21,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254811001] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:21,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:21,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:19:21,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092984004] [2022-04-05 04:19:21,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:21,980 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:19:21,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:21,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:19:21,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:19:21,980 INFO L87 Difference]: Start difference. First operand 2187 states and 3236 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:23,990 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 04:19:25,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:25,242 INFO L93 Difference]: Finished difference Result 4189 states and 6238 transitions. [2022-04-05 04:19:25,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:19:25,242 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 330 [2022-04-05 04:19:25,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:25,247 INFO L225 Difference]: With dead ends: 4189 [2022-04-05 04:19:25,247 INFO L226 Difference]: Without dead ends: 4189 [2022-04-05 04:19:25,247 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:19:25,248 INFO L913 BasicCegarLoop]: 331 mSDtfsCounter, 203 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:25,248 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1300 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1480 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-04-05 04:19:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4189 states. [2022-04-05 04:19:25,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4189 to 3938. [2022-04-05 04:19:25,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3933 states have (on average 1.5026697177726926) internal successors, (5910), 3933 states have internal predecessors, (5910), 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 04:19:25,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5914 transitions. [2022-04-05 04:19:25,282 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5914 transitions. Word has length 330 [2022-04-05 04:19:25,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:25,282 INFO L478 AbstractCegarLoop]: Abstraction has 3938 states and 5914 transitions. [2022-04-05 04:19:25,282 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:25,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5914 transitions. [2022-04-05 04:19:25,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-04-05 04:19:25,287 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:25,288 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:25,288 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-05 04:19:25,288 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:25,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:25,288 INFO L85 PathProgramCache]: Analyzing trace with hash 674782559, now seen corresponding path program 1 times [2022-04-05 04:19:25,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:25,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347539212] [2022-04-05 04:19:25,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:25,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:25,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-04-05 04:19:25,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:25,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347539212] [2022-04-05 04:19:25,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347539212] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:25,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:25,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:19:25,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190490044] [2022-04-05 04:19:25,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:25,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:19:25,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:25,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:19:25,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:19:25,519 INFO L87 Difference]: Start difference. First operand 3938 states and 5914 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:27,528 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 04:19:28,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:28,732 INFO L93 Difference]: Finished difference Result 6068 states and 8920 transitions. [2022-04-05 04:19:28,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:19:28,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 331 [2022-04-05 04:19:28,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:28,740 INFO L225 Difference]: With dead ends: 6068 [2022-04-05 04:19:28,741 INFO L226 Difference]: Without dead ends: 6068 [2022-04-05 04:19:28,741 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:19:28,743 INFO L913 BasicCegarLoop]: 304 mSDtfsCounter, 503 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 76 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:28,743 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 1090 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1304 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-04-05 04:19:28,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6068 states. [2022-04-05 04:19:28,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6068 to 3980. [2022-04-05 04:19:28,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3975 states have (on average 1.5006289308176102) internal successors, (5965), 3975 states have internal predecessors, (5965), 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 04:19:28,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5969 transitions. [2022-04-05 04:19:28,806 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5969 transitions. Word has length 331 [2022-04-05 04:19:28,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:28,807 INFO L478 AbstractCegarLoop]: Abstraction has 3980 states and 5969 transitions. [2022-04-05 04:19:28,807 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:28,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5969 transitions. [2022-04-05 04:19:28,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-04-05 04:19:28,813 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:28,813 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:28,813 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-05 04:19:28,813 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:28,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:28,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2119834520, now seen corresponding path program 1 times [2022-04-05 04:19:28,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:28,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883891409] [2022-04-05 04:19:28,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:28,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:28,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:28,958 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-04-05 04:19:28,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:28,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883891409] [2022-04-05 04:19:28,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883891409] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:28,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:28,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:28,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067906758] [2022-04-05 04:19:28,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:28,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:28,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:28,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:28,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:28,959 INFO L87 Difference]: Start difference. First operand 3980 states and 5969 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:30,975 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 04:19:31,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:31,489 INFO L93 Difference]: Finished difference Result 4282 states and 6355 transitions. [2022-04-05 04:19:31,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:31,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 331 [2022-04-05 04:19:31,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:31,499 INFO L225 Difference]: With dead ends: 4282 [2022-04-05 04:19:31,499 INFO L226 Difference]: Without dead ends: 4266 [2022-04-05 04:19:31,499 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 04:19:31,500 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 58 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:31,500 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 612 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 578 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:19:31,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2022-04-05 04:19:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 3968. [2022-04-05 04:19:31,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.5001261670451678) internal successors, (5945), 3963 states have internal predecessors, (5945), 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 04:19:31,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5949 transitions. [2022-04-05 04:19:31,544 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5949 transitions. Word has length 331 [2022-04-05 04:19:31,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:31,544 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5949 transitions. [2022-04-05 04:19:31,544 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:31,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5949 transitions. [2022-04-05 04:19:31,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-04-05 04:19:31,549 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:31,550 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:31,550 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-05 04:19:31,550 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:31,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:31,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1801634778, now seen corresponding path program 1 times [2022-04-05 04:19:31,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:31,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540692471] [2022-04-05 04:19:31,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:31,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:31,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:31,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 708 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-04-05 04:19:31,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:31,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540692471] [2022-04-05 04:19:31,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540692471] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:31,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:31,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:31,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299407497] [2022-04-05 04:19:31,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:31,690 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:31,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:31,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:31,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:31,691 INFO L87 Difference]: Start difference. First operand 3968 states and 5949 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:33,703 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 04:19:34,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:34,139 INFO L93 Difference]: Finished difference Result 4250 states and 6311 transitions. [2022-04-05 04:19:34,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:34,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 347 [2022-04-05 04:19:34,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:34,145 INFO L225 Difference]: With dead ends: 4250 [2022-04-05 04:19:34,145 INFO L226 Difference]: Without dead ends: 4250 [2022-04-05 04:19:34,145 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 04:19:34,145 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 62 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:34,145 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 608 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 560 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:19:34,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2022-04-05 04:19:34,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 3968. [2022-04-05 04:19:34,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.498107494322483) internal successors, (5937), 3963 states have internal predecessors, (5937), 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 04:19:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5941 transitions. [2022-04-05 04:19:34,226 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5941 transitions. Word has length 347 [2022-04-05 04:19:34,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:34,226 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5941 transitions. [2022-04-05 04:19:34,226 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:34,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5941 transitions. [2022-04-05 04:19:34,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-04-05 04:19:34,231 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:34,231 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:34,231 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-05 04:19:34,231 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:34,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1466071603, now seen corresponding path program 1 times [2022-04-05 04:19:34,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:34,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520712944] [2022-04-05 04:19:34,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:34,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:34,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 606 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-04-05 04:19:34,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:34,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520712944] [2022-04-05 04:19:34,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520712944] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:34,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:34,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:34,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357774998] [2022-04-05 04:19:34,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:34,379 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:34,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:34,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:34,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:34,380 INFO L87 Difference]: Start difference. First operand 3968 states and 5941 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:36,387 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 04:19:36,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:36,799 INFO L93 Difference]: Finished difference Result 4210 states and 6251 transitions. [2022-04-05 04:19:36,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:36,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 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 348 [2022-04-05 04:19:36,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:36,804 INFO L225 Difference]: With dead ends: 4210 [2022-04-05 04:19:36,804 INFO L226 Difference]: Without dead ends: 4210 [2022-04-05 04:19:36,804 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 04:19:36,804 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 71 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:36,804 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 594 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:19:36,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2022-04-05 04:19:36,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 3968. [2022-04-05 04:19:36,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.496088821599798) internal successors, (5929), 3963 states have internal predecessors, (5929), 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 04:19:36,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5933 transitions. [2022-04-05 04:19:36,836 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5933 transitions. Word has length 348 [2022-04-05 04:19:36,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:36,836 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5933 transitions. [2022-04-05 04:19:36,836 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:36,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5933 transitions. [2022-04-05 04:19:36,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-04-05 04:19:36,842 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:36,842 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:36,842 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-05 04:19:36,842 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:36,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:36,842 INFO L85 PathProgramCache]: Analyzing trace with hash -951999064, now seen corresponding path program 1 times [2022-04-05 04:19:36,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:36,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027365710] [2022-04-05 04:19:36,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:36,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:37,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-04-05 04:19:37,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:37,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027365710] [2022-04-05 04:19:37,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027365710] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:37,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:37,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:19:37,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15911586] [2022-04-05 04:19:37,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:37,046 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:19:37,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:37,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:19:37,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:19:37,047 INFO L87 Difference]: Start difference. First operand 3968 states and 5933 transitions. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:38,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:19:40,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:19:42,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:19:44,492 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 04:19:44,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:44,919 INFO L93 Difference]: Finished difference Result 4446 states and 6561 transitions. [2022-04-05 04:19:44,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:44,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 1 states have call successors, (3), 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 349 [2022-04-05 04:19:44,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:44,925 INFO L225 Difference]: With dead ends: 4446 [2022-04-05 04:19:44,925 INFO L226 Difference]: Without dead ends: 4446 [2022-04-05 04:19:44,925 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:19:44,925 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 253 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 126 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:44,926 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 330 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 467 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-04-05 04:19:44,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2022-04-05 04:19:44,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 3910. [2022-04-05 04:19:44,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.4960307298335467) internal successors, (5842), 3905 states have internal predecessors, (5842), 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 04:19:44,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5846 transitions. [2022-04-05 04:19:44,961 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5846 transitions. Word has length 349 [2022-04-05 04:19:44,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:44,961 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5846 transitions. [2022-04-05 04:19:44,961 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:44,961 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5846 transitions. [2022-04-05 04:19:44,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-04-05 04:19:44,966 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:44,966 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:44,966 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-04-05 04:19:44,967 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:44,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:44,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2110568493, now seen corresponding path program 1 times [2022-04-05 04:19:44,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:44,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73559547] [2022-04-05 04:19:44,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:44,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:45,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-04-05 04:19:45,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:45,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73559547] [2022-04-05 04:19:45,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73559547] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:45,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:45,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:45,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969599181] [2022-04-05 04:19:45,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:45,144 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:45,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:45,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:45,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:45,145 INFO L87 Difference]: Start difference. First operand 3910 states and 5846 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:47,152 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 04:19:47,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:47,649 INFO L93 Difference]: Finished difference Result 4152 states and 6156 transitions. [2022-04-05 04:19:47,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:47,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 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 349 [2022-04-05 04:19:47,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:47,657 INFO L225 Difference]: With dead ends: 4152 [2022-04-05 04:19:47,658 INFO L226 Difference]: Without dead ends: 4152 [2022-04-05 04:19:47,658 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 04:19:47,658 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 56 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:47,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 592 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:19:47,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2022-04-05 04:19:47,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 3910. [2022-04-05 04:19:47,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.4939820742637644) internal successors, (5834), 3905 states have internal predecessors, (5834), 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 04:19:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5838 transitions. [2022-04-05 04:19:47,729 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5838 transitions. Word has length 349 [2022-04-05 04:19:47,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:47,730 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5838 transitions. [2022-04-05 04:19:47,730 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:47,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5838 transitions. [2022-04-05 04:19:47,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-04-05 04:19:47,734 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:47,734 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:47,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-05 04:19:47,735 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:47,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:47,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1878023735, now seen corresponding path program 1 times [2022-04-05 04:19:47,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:47,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294064927] [2022-04-05 04:19:47,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:47,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:47,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:47,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 694 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-04-05 04:19:47,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:47,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294064927] [2022-04-05 04:19:47,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294064927] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:47,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:47,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:47,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175111179] [2022-04-05 04:19:47,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:47,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:47,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:47,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:47,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:47,961 INFO L87 Difference]: Start difference. First operand 3910 states and 5838 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:49,979 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 04:19:50,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:50,373 INFO L93 Difference]: Finished difference Result 4088 states and 6044 transitions. [2022-04-05 04:19:50,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:50,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 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 04:19:50,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:50,378 INFO L225 Difference]: With dead ends: 4088 [2022-04-05 04:19:50,379 INFO L226 Difference]: Without dead ends: 4088 [2022-04-05 04:19:50,379 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 04:19:50,379 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 45 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:50,379 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 582 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:19:50,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2022-04-05 04:19:50,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 3910. [2022-04-05 04:19:50,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.491933418693982) internal successors, (5826), 3905 states have internal predecessors, (5826), 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 04:19:50,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5830 transitions. [2022-04-05 04:19:50,416 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5830 transitions. Word has length 350 [2022-04-05 04:19:50,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:50,417 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5830 transitions. [2022-04-05 04:19:50,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:50,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5830 transitions. [2022-04-05 04:19:50,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-04-05 04:19:50,421 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:50,422 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:50,422 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-05 04:19:50,422 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:50,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:50,422 INFO L85 PathProgramCache]: Analyzing trace with hash 512398985, now seen corresponding path program 1 times [2022-04-05 04:19:50,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:50,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010951092] [2022-04-05 04:19:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:50,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:50,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 710 proven. 82 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-04-05 04:19:50,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:50,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010951092] [2022-04-05 04:19:50,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010951092] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:19:50,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608782603] [2022-04-05 04:19:50,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:50,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:19:50,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:19:50,636 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 04:19:50,637 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 04:19:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:51,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-05 04:19:51,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:19:51,749 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:19:51,750 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 04:19:51,809 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:19:51,809 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 04:19:51,886 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 04:19:52,030 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:19:52,030 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 04:19:52,111 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 04:19:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 682 proven. 126 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-04-05 04:19:52,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:19:52,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 703 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-04-05 04:19:52,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608782603] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:19:52,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:19:52,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 13 [2022-04-05 04:19:52,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637957352] [2022-04-05 04:19:52,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:52,676 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:19:52,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:52,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:19:52,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:19:52,677 INFO L87 Difference]: Start difference. First operand 3910 states and 5830 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:54,687 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 04:19:54,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:54,956 INFO L93 Difference]: Finished difference Result 4716 states and 6951 transitions. [2022-04-05 04:19:54,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:19:54,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 352 [2022-04-05 04:19:54,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:54,961 INFO L225 Difference]: With dead ends: 4716 [2022-04-05 04:19:54,961 INFO L226 Difference]: Without dead ends: 4716 [2022-04-05 04:19:54,961 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:19:54,962 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 108 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:54,962 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 535 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 262 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:19:54,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4716 states. [2022-04-05 04:19:55,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4716 to 4234. [2022-04-05 04:19:55,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4229 states have (on average 1.4913691179947979) internal successors, (6307), 4229 states have internal predecessors, (6307), 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 04:19:55,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6311 transitions. [2022-04-05 04:19:55,023 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6311 transitions. Word has length 352 [2022-04-05 04:19:55,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:55,024 INFO L478 AbstractCegarLoop]: Abstraction has 4234 states and 6311 transitions. [2022-04-05 04:19:55,024 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:55,024 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6311 transitions. [2022-04-05 04:19:55,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-04-05 04:19:55,028 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:55,028 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 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] [2022-04-05 04:19:55,054 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 04:19:55,228 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,SelfDestructingSolverStorable58 [2022-04-05 04:19:55,229 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:55,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:55,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1647130387, now seen corresponding path program 1 times [2022-04-05 04:19:55,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:55,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192404852] [2022-04-05 04:19:55,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:55,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:55,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-04-05 04:19:55,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:55,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192404852] [2022-04-05 04:19:55,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192404852] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:55,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:55,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:55,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912207357] [2022-04-05 04:19:55,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:55,391 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:55,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:55,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:55,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:55,392 INFO L87 Difference]: Start difference. First operand 4234 states and 6311 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:57,399 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 04:19:57,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:57,779 INFO L93 Difference]: Finished difference Result 4380 states and 6475 transitions. [2022-04-05 04:19:57,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:57,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 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 353 [2022-04-05 04:19:57,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:57,784 INFO L225 Difference]: With dead ends: 4380 [2022-04-05 04:19:57,784 INFO L226 Difference]: Without dead ends: 4380 [2022-04-05 04:19:57,784 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 04:19:57,784 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 46 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:57,784 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 574 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:19:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2022-04-05 04:19:57,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4234. [2022-04-05 04:19:57,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4229 states have (on average 1.489477417829274) internal successors, (6299), 4229 states have internal predecessors, (6299), 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 04:19:57,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6303 transitions. [2022-04-05 04:19:57,817 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6303 transitions. Word has length 353 [2022-04-05 04:19:57,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:57,817 INFO L478 AbstractCegarLoop]: Abstraction has 4234 states and 6303 transitions. [2022-04-05 04:19:57,817 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:57,818 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6303 transitions. [2022-04-05 04:19:57,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-04-05 04:19:57,822 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:57,822 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:57,822 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-04-05 04:19:57,822 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:57,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:57,823 INFO L85 PathProgramCache]: Analyzing trace with hash -947640423, now seen corresponding path program 1 times [2022-04-05 04:19:57,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:57,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9851819] [2022-04-05 04:19:57,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:57,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:57,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 668 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-04-05 04:19:57,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:57,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9851819] [2022-04-05 04:19:57,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9851819] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:57,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:57,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:57,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405895788] [2022-04-05 04:19:57,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:57,996 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:57,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:57,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:57,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:57,997 INFO L87 Difference]: Start difference. First operand 4234 states and 6303 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:00,005 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 04:20:00,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:00,368 INFO L93 Difference]: Finished difference Result 4596 states and 6801 transitions. [2022-04-05 04:20:00,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:00,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 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 353 [2022-04-05 04:20:00,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:00,372 INFO L225 Difference]: With dead ends: 4596 [2022-04-05 04:20:00,372 INFO L226 Difference]: Without dead ends: 4596 [2022-04-05 04:20:00,372 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 04:20:00,372 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 35 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:00,373 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 578 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:20:00,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-04-05 04:20:00,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4442. [2022-04-05 04:20:00,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4442 states, 4437 states have (on average 1.4881676808654496) internal successors, (6603), 4437 states have internal predecessors, (6603), 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 04:20:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4442 states to 4442 states and 6607 transitions. [2022-04-05 04:20:00,407 INFO L78 Accepts]: Start accepts. Automaton has 4442 states and 6607 transitions. Word has length 353 [2022-04-05 04:20:00,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:00,407 INFO L478 AbstractCegarLoop]: Abstraction has 4442 states and 6607 transitions. [2022-04-05 04:20:00,407 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:00,407 INFO L276 IsEmpty]: Start isEmpty. Operand 4442 states and 6607 transitions. [2022-04-05 04:20:00,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-04-05 04:20:00,412 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:00,412 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:20:00,412 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-05 04:20:00,412 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:00,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:00,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1606404644, now seen corresponding path program 1 times [2022-04-05 04:20:00,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:00,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125725946] [2022-04-05 04:20:00,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:00,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:00,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:00,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1098 backedges. 682 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-04-05 04:20:00,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:00,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125725946] [2022-04-05 04:20:00,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125725946] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:00,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:00,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:00,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365168622] [2022-04-05 04:20:00,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:00,633 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:00,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:00,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:00,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:00,634 INFO L87 Difference]: Start difference. First operand 4442 states and 6607 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:02,642 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 04:20:03,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:03,100 INFO L93 Difference]: Finished difference Result 4884 states and 7241 transitions. [2022-04-05 04:20:03,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:03,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 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 359 [2022-04-05 04:20:03,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:03,105 INFO L225 Difference]: With dead ends: 4884 [2022-04-05 04:20:03,105 INFO L226 Difference]: Without dead ends: 4884 [2022-04-05 04:20:03,105 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:20:03,105 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 46 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:03,105 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 590 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:20:03,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2022-04-05 04:20:03,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4666. [2022-04-05 04:20:03,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4666 states, 4661 states have (on average 1.488736322677537) internal successors, (6939), 4661 states have internal predecessors, (6939), 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 04:20:03,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 6943 transitions. [2022-04-05 04:20:03,138 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 6943 transitions. Word has length 359 [2022-04-05 04:20:03,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:03,138 INFO L478 AbstractCegarLoop]: Abstraction has 4666 states and 6943 transitions. [2022-04-05 04:20:03,139 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:03,139 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 6943 transitions. [2022-04-05 04:20:03,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-04-05 04:20:03,143 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:03,143 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-04-05 04:20:03,143 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-05 04:20:03,144 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:03,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:03,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1596942315, now seen corresponding path program 1 times [2022-04-05 04:20:03,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:03,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480724639] [2022-04-05 04:20:03,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:03,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:03,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2022-04-05 04:20:03,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:03,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480724639] [2022-04-05 04:20:03,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480724639] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:03,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:03,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 04:20:03,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930207249] [2022-04-05 04:20:03,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:03,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:20:03,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:03,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:20:03,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:20:03,519 INFO L87 Difference]: Start difference. First operand 4666 states and 6943 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 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 04:20:05,528 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 04:20:05,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:05,984 INFO L93 Difference]: Finished difference Result 4674 states and 6953 transitions. [2022-04-05 04:20:05,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:20:05,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 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 360 [2022-04-05 04:20:05,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:05,988 INFO L225 Difference]: With dead ends: 4674 [2022-04-05 04:20:05,988 INFO L226 Difference]: Without dead ends: 4666 [2022-04-05 04:20:05,988 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 04:20:05,988 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 7 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:05,988 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 806 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 432 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:20:05,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2022-04-05 04:20:06,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4666. [2022-04-05 04:20:06,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4666 states, 4661 states have (on average 1.4885217764428234) internal successors, (6938), 4661 states have internal predecessors, (6938), 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 04:20:06,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 6942 transitions. [2022-04-05 04:20:06,057 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 6942 transitions. Word has length 360 [2022-04-05 04:20:06,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:06,057 INFO L478 AbstractCegarLoop]: Abstraction has 4666 states and 6942 transitions. [2022-04-05 04:20:06,057 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 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 04:20:06,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 6942 transitions. [2022-04-05 04:20:06,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-04-05 04:20:06,062 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:06,062 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-04-05 04:20:06,062 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-04-05 04:20:06,062 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:06,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:06,063 INFO L85 PathProgramCache]: Analyzing trace with hash -870525942, now seen corresponding path program 1 times [2022-04-05 04:20:06,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:06,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638966685] [2022-04-05 04:20:06,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:06,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:07,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:07,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 576 proven. 92 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2022-04-05 04:20:07,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:07,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638966685] [2022-04-05 04:20:07,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638966685] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:20:07,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454325561] [2022-04-05 04:20:07,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:07,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:20:07,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:20:07,052 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 04:20:07,053 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 04:20:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:08,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 131 conjunts are in the unsatisfiable core [2022-04-05 04:20:08,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:20:08,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,293 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 04:20:08,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,429 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 04:20:08,430 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 04:20:08,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,463 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 04:20:08,463 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 1 case distinctions, treesize of input 33 treesize of output 26 [2022-04-05 04:20:08,467 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 04:20:08,472 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 04:20:08,679 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-04-05 04:20:08,679 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 94 treesize of output 82 [2022-04-05 04:20:08,701 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-04-05 04:20:08,702 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 64 treesize of output 64 [2022-04-05 04:20:08,717 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-04-05 04:20:08,717 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 22 treesize of output 31 [2022-04-05 04:20:08,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,800 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-04-05 04:20:08,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-04-05 04:20:08,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:08,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-04-05 04:20:09,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,248 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 48 treesize of output 47 [2022-04-05 04:20:09,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,252 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 48 treesize of output 47 [2022-04-05 04:20:09,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,256 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 48 treesize of output 47 [2022-04-05 04:20:09,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,354 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-05 04:20:09,355 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 103 treesize of output 110 [2022-04-05 04:20:09,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,392 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-05 04:20:09,393 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 100 treesize of output 107 [2022-04-05 04:20:09,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,458 INFO L356 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-04-05 04:20:09,458 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 32 treesize of output 54 [2022-04-05 04:20:09,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,651 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 213 treesize of output 185 [2022-04-05 04:20:09,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,658 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 213 treesize of output 185 [2022-04-05 04:20:09,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:09,681 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-04-05 04:20:09,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 213 treesize of output 231 [2022-04-05 04:20:12,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,133 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 266 treesize of output 226 [2022-04-05 04:20:12,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,182 INFO L356 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-04-05 04:20:12,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 262 treesize of output 260 [2022-04-05 04:20:12,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:12,189 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 270 treesize of output 230 [2022-04-05 04:20:14,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,579 INFO L356 Elim1Store]: treesize reduction 34, result has 69.9 percent of original size [2022-04-05 04:20:14,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 247 treesize of output 259 [2022-04-05 04:20:14,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,938 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 117 treesize of output 101 [2022-04-05 04:20:14,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,945 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2022-04-05 04:20:14,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,987 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 115 treesize of output 99 [2022-04-05 04:20:14,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:14,995 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 117 treesize of output 101 [2022-04-05 04:20:16,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,040 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 127 [2022-04-05 04:20:16,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,062 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-04-05 04:20:16,062 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 123 treesize of output 104 [2022-04-05 04:20:16,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,226 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 120 treesize of output 108 [2022-04-05 04:20:16,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:16,234 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 122 treesize of output 110 [2022-04-05 04:20:17,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,569 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 115 treesize of output 99 [2022-04-05 04:20:17,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,574 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 117 treesize of output 101 [2022-04-05 04:20:17,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,655 INFO L356 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-04-05 04:20:17,656 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 195 treesize of output 162 [2022-04-05 04:20:17,664 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 31 treesize of output 21 [2022-04-05 04:20:17,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,690 INFO L356 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-04-05 04:20:17,690 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 3 case distinctions, treesize of input 187 treesize of output 166 [2022-04-05 04:20:17,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,819 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 193 treesize of output 159 [2022-04-05 04:20:17,837 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-04-05 04:20:17,838 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 35 treesize of output 34 [2022-04-05 04:20:17,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:17,858 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 04:20:17,858 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 193 treesize of output 159 [2022-04-05 04:20:19,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:19,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:19,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:19,557 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 214 treesize of output 174 [2022-04-05 04:20:19,573 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-04-05 04:20:19,573 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 56 treesize of output 37 [2022-04-05 04:20:19,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:19,579 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 04:20:19,579 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 207 treesize of output 153 [2022-04-05 04:20:19,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:20:19,981 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 04:20:19,981 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 130 treesize of output 82 [2022-04-05 04:20:34,532 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-04-05 04:20:34,532 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 30 treesize of output 10 [2022-04-05 04:20:34,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 221 proven. 883 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-04-05 04:20:34,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:20:34,776 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 596 treesize of output 522