/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loops/s3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 02:48:15,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 02:48:15,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 02:48:15,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 02:48:15,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 02:48:15,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 02:48:15,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 02:48:15,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 02:48:15,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 02:48:15,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 02:48:15,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 02:48:15,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 02:48:15,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 02:48:15,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 02:48:15,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 02:48:16,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 02:48:16,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 02:48:16,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 02:48:16,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 02:48:16,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 02:48:16,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 02:48:16,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 02:48:16,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 02:48:16,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 02:48:16,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 02:48:16,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 02:48:16,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 02:48:16,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 02:48:16,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 02:48:16,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 02:48:16,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 02:48:16,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 02:48:16,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 02:48:16,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 02:48:16,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 02:48:16,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 02:48:16,026 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 02:48:16,039 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 02:48:16,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 02:48:16,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 02:48:16,041 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 02:48:16,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 02:48:16,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 02:48:16,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 02:48:16,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 02:48:16,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 02:48:16,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 02:48:16,042 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 02:48:16,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 02:48:16,042 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 02:48:16,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 02:48:16,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 02:48:16,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 02:48:16,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 02:48:16,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 02:48:16,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 02:48:16,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 02:48:16,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 02:48:16,044 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 02:48:16,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 02:48:16,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 02:48:16,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 02:48:16,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 02:48:16,292 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 02:48:16,292 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 02:48:16,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/s3.i [2021-05-01 02:48:16,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6b60d2e1/468d1829fbf94239a24296b63f1ad0c1/FLAG74d296b7d [2021-05-01 02:48:16,794 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 02:48:16,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i [2021-05-01 02:48:16,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6b60d2e1/468d1829fbf94239a24296b63f1ad0c1/FLAG74d296b7d [2021-05-01 02:48:17,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6b60d2e1/468d1829fbf94239a24296b63f1ad0c1 [2021-05-01 02:48:17,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 02:48:17,320 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 02:48:17,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 02:48:17,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 02:48:17,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 02:48:17,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:48:17" (1/1) ... [2021-05-01 02:48:17,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b8ca41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:17, skipping insertion in model container [2021-05-01 02:48:17,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:48:17" (1/1) ... [2021-05-01 02:48:17,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 02:48:17,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 02:48:17,603 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i[63567,63580] [2021-05-01 02:48:17,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 02:48:17,617 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 02:48:17,692 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i[63567,63580] [2021-05-01 02:48:17,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 02:48:17,709 INFO L208 MainTranslator]: Completed translation [2021-05-01 02:48:17,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:17 WrapperNode [2021-05-01 02:48:17,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 02:48:17,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 02:48:17,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 02:48:17,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 02:48:17,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:17" (1/1) ... [2021-05-01 02:48:17,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:17" (1/1) ... [2021-05-01 02:48:17,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:17" (1/1) ... [2021-05-01 02:48:17,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:17" (1/1) ... [2021-05-01 02:48:17,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:17" (1/1) ... [2021-05-01 02:48:17,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:17" (1/1) ... [2021-05-01 02:48:17,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:17" (1/1) ... [2021-05-01 02:48:17,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 02:48:17,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 02:48:17,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 02:48:17,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 02:48:17,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 02:48:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 02:48:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 02:48:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 02:48:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2021-05-01 02:48:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2021-05-01 02:48:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 02:48:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2021-05-01 02:48:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2021-05-01 02:48:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-05-01 02:48:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-05-01 02:48:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 02:48:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 02:48:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 02:48:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 02:48:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-01 02:48:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 02:48:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2021-05-01 02:48:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-05-01 02:48:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2021-05-01 02:48:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2021-05-01 02:48:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2021-05-01 02:48:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2021-05-01 02:48:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-05-01 02:48:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-05-01 02:48:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-05-01 02:48:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-05-01 02:48:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 02:48:18,251 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-05-01 02:48:18,600 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-05-01 02:48:18,601 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-05-01 02:48:18,623 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 02:48:18,624 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 02:48:18,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:18 BoogieIcfgContainer [2021-05-01 02:48:18,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 02:48:18,625 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 02:48:18,625 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 02:48:18,626 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 02:48:18,627 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:18" (1/1) ... [2021-05-01 02:48:18,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 02:48:18 BasicIcfg [2021-05-01 02:48:18,654 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 02:48:18,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 02:48:18,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 02:48:18,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 02:48:18,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 02:48:17" (1/4) ... [2021-05-01 02:48:18,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f514b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:48:18, skipping insertion in model container [2021-05-01 02:48:18,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:48:17" (2/4) ... [2021-05-01 02:48:18,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f514b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:48:18, skipping insertion in model container [2021-05-01 02:48:18,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:48:18" (3/4) ... [2021-05-01 02:48:18,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f514b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 02:48:18, skipping insertion in model container [2021-05-01 02:48:18,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 02:48:18" (4/4) ... [2021-05-01 02:48:18,658 INFO L111 eAbstractionObserver]: Analyzing ICFG s3.iJordan [2021-05-01 02:48:18,661 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 02:48:18,669 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 02:48:18,679 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 02:48:18,696 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 02:48:18,696 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 02:48:18,696 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 02:48:18,696 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 02:48:18,696 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 02:48:18,696 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 02:48:18,696 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 02:48:18,696 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 02:48:18,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 02:48:18,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-01 02:48:18,713 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:18,714 INFO L519 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] [2021-05-01 02:48:18,714 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:18,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1407118819, now seen corresponding path program 1 times [2021-05-01 02:48:18,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:18,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346040447] [2021-05-01 02:48:18,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:18,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:18,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:18,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:18,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:18,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:18,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:18,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:19,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:19,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 02:48:19,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:19,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346040447] [2021-05-01 02:48:19,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346040447] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:19,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:19,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 02:48:19,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936417469] [2021-05-01 02:48:19,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 02:48:19,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:19,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 02:48:19,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:48:19,034 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:19,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:19,433 INFO L93 Difference]: Finished difference Result 258 states and 416 transitions. [2021-05-01 02:48:19,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 02:48:19,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-05-01 02:48:19,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:19,441 INFO L225 Difference]: With dead ends: 258 [2021-05-01 02:48:19,441 INFO L226 Difference]: Without dead ends: 223 [2021-05-01 02:48:19,442 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.2ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:48:19,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-05-01 02:48:19,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2021-05-01 02:48:19,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 218 states have (on average 1.481651376146789) internal successors, (323), 218 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:19,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 327 transitions. [2021-05-01 02:48:19,473 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 327 transitions. Word has length 30 [2021-05-01 02:48:19,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:19,473 INFO L480 AbstractCegarLoop]: Abstraction has 223 states and 327 transitions. [2021-05-01 02:48:19,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:19,473 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 327 transitions. [2021-05-01 02:48:19,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-05-01 02:48:19,475 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:19,475 INFO L519 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] [2021-05-01 02:48:19,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 02:48:19,476 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:19,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:19,476 INFO L82 PathProgramCache]: Analyzing trace with hash -455653265, now seen corresponding path program 1 times [2021-05-01 02:48:19,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:19,476 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915031149] [2021-05-01 02:48:19,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:19,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:19,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:19,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:19,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:19,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:19,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:19,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:19,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:19,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 02:48:19,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:19,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915031149] [2021-05-01 02:48:19,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915031149] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:19,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:19,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 02:48:19,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823566041] [2021-05-01 02:48:19,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 02:48:19,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:19,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 02:48:19,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:48:19,617 INFO L87 Difference]: Start difference. First operand 223 states and 327 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:20,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:20,058 INFO L93 Difference]: Finished difference Result 325 states and 476 transitions. [2021-05-01 02:48:20,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 02:48:20,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-05-01 02:48:20,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:20,060 INFO L225 Difference]: With dead ends: 325 [2021-05-01 02:48:20,060 INFO L226 Difference]: Without dead ends: 325 [2021-05-01 02:48:20,060 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.6ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:48:20,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-05-01 02:48:20,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2021-05-01 02:48:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.475) internal successors, (472), 320 states have internal predecessors, (472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:20,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 476 transitions. [2021-05-01 02:48:20,085 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 476 transitions. Word has length 45 [2021-05-01 02:48:20,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:20,086 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 476 transitions. [2021-05-01 02:48:20,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:20,086 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 476 transitions. [2021-05-01 02:48:20,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-01 02:48:20,094 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:20,094 INFO L519 BasicCegarLoop]: trace histogram [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] [2021-05-01 02:48:20,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 02:48:20,094 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:20,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:20,096 INFO L82 PathProgramCache]: Analyzing trace with hash 702475222, now seen corresponding path program 1 times [2021-05-01 02:48:20,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:20,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518575295] [2021-05-01 02:48:20,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:20,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:20,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:20,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:20,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:20,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:20,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:20,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:20,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:20,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518575295] [2021-05-01 02:48:20,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518575295] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:20,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:20,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:20,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457654746] [2021-05-01 02:48:20,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:20,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:20,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:20,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:20,211 INFO L87 Difference]: Start difference. First operand 325 states and 476 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:20,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:20,789 INFO L93 Difference]: Finished difference Result 513 states and 755 transitions. [2021-05-01 02:48:20,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:20,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2021-05-01 02:48:20,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:20,792 INFO L225 Difference]: With dead ends: 513 [2021-05-01 02:48:20,792 INFO L226 Difference]: Without dead ends: 513 [2021-05-01 02:48:20,792 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2021-05-01 02:48:20,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 375. [2021-05-01 02:48:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.508108108108108) internal successors, (558), 370 states have internal predecessors, (558), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:20,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 562 transitions. [2021-05-01 02:48:20,803 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 562 transitions. Word has length 63 [2021-05-01 02:48:20,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:20,803 INFO L480 AbstractCegarLoop]: Abstraction has 375 states and 562 transitions. [2021-05-01 02:48:20,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:20,804 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 562 transitions. [2021-05-01 02:48:20,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-01 02:48:20,804 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:20,804 INFO L519 BasicCegarLoop]: trace histogram [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] [2021-05-01 02:48:20,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 02:48:20,805 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:20,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:20,805 INFO L82 PathProgramCache]: Analyzing trace with hash 635468469, now seen corresponding path program 1 times [2021-05-01 02:48:20,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:20,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690415366] [2021-05-01 02:48:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:20,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:20,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:20,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:20,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:20,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:20,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:20,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:20,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:20,894 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:20,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:20,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690415366] [2021-05-01 02:48:20,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690415366] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:20,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:20,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:20,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689226479] [2021-05-01 02:48:20,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:20,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:20,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:20,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:20,896 INFO L87 Difference]: Start difference. First operand 375 states and 562 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:21,346 INFO L93 Difference]: Finished difference Result 459 states and 685 transitions. [2021-05-01 02:48:21,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:21,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2021-05-01 02:48:21,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:21,348 INFO L225 Difference]: With dead ends: 459 [2021-05-01 02:48:21,348 INFO L226 Difference]: Without dead ends: 459 [2021-05-01 02:48:21,348 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:21,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-05-01 02:48:21,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 415. [2021-05-01 02:48:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 410 states have (on average 1.526829268292683) internal successors, (626), 410 states have internal predecessors, (626), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:21,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 630 transitions. [2021-05-01 02:48:21,356 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 630 transitions. Word has length 63 [2021-05-01 02:48:21,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:21,357 INFO L480 AbstractCegarLoop]: Abstraction has 415 states and 630 transitions. [2021-05-01 02:48:21,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:21,357 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 630 transitions. [2021-05-01 02:48:21,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-05-01 02:48:21,358 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:21,358 INFO L519 BasicCegarLoop]: trace histogram [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] [2021-05-01 02:48:21,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-01 02:48:21,358 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:21,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:21,358 INFO L82 PathProgramCache]: Analyzing trace with hash 302842584, now seen corresponding path program 1 times [2021-05-01 02:48:21,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:21,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85039226] [2021-05-01 02:48:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:21,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:21,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:21,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:21,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:21,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:21,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:21,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:21,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:21,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:21,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:21,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:21,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:21,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:21,447 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:21,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:21,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85039226] [2021-05-01 02:48:21,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85039226] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:21,447 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:21,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:21,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994335763] [2021-05-01 02:48:21,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:21,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:21,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:21,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:21,451 INFO L87 Difference]: Start difference. First operand 415 states and 630 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:21,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:21,968 INFO L93 Difference]: Finished difference Result 547 states and 814 transitions. [2021-05-01 02:48:21,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:21,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2021-05-01 02:48:21,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:21,971 INFO L225 Difference]: With dead ends: 547 [2021-05-01 02:48:21,971 INFO L226 Difference]: Without dead ends: 547 [2021-05-01 02:48:21,971 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:21,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2021-05-01 02:48:21,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 417. [2021-05-01 02:48:21,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 412 states have (on average 1.5242718446601942) internal successors, (628), 412 states have internal predecessors, (628), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:21,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 632 transitions. [2021-05-01 02:48:21,978 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 632 transitions. Word has length 64 [2021-05-01 02:48:21,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:21,978 INFO L480 AbstractCegarLoop]: Abstraction has 417 states and 632 transitions. [2021-05-01 02:48:21,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:21,979 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 632 transitions. [2021-05-01 02:48:21,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-05-01 02:48:21,979 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:21,979 INFO L519 BasicCegarLoop]: trace histogram [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] [2021-05-01 02:48:21,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-01 02:48:21,980 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:21,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:21,980 INFO L82 PathProgramCache]: Analyzing trace with hash 799385778, now seen corresponding path program 1 times [2021-05-01 02:48:21,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:21,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268555675] [2021-05-01 02:48:21,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:22,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:22,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:22,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:22,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:22,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:22,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:22,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:22,068 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:22,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:22,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268555675] [2021-05-01 02:48:22,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268555675] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:22,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:22,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:22,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119409937] [2021-05-01 02:48:22,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:22,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:22,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:22,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:22,070 INFO L87 Difference]: Start difference. First operand 417 states and 632 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:22,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:22,648 INFO L93 Difference]: Finished difference Result 547 states and 812 transitions. [2021-05-01 02:48:22,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:22,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2021-05-01 02:48:22,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:22,650 INFO L225 Difference]: With dead ends: 547 [2021-05-01 02:48:22,650 INFO L226 Difference]: Without dead ends: 547 [2021-05-01 02:48:22,650 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:22,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2021-05-01 02:48:22,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 419. [2021-05-01 02:48:22,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 414 states have (on average 1.5217391304347827) internal successors, (630), 414 states have internal predecessors, (630), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:22,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 634 transitions. [2021-05-01 02:48:22,658 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 634 transitions. Word has length 65 [2021-05-01 02:48:22,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:22,658 INFO L480 AbstractCegarLoop]: Abstraction has 419 states and 634 transitions. [2021-05-01 02:48:22,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:22,658 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 634 transitions. [2021-05-01 02:48:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-05-01 02:48:22,659 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:22,659 INFO L519 BasicCegarLoop]: trace histogram [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] [2021-05-01 02:48:22,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-01 02:48:22,660 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:22,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:22,660 INFO L82 PathProgramCache]: Analyzing trace with hash -987893291, now seen corresponding path program 1 times [2021-05-01 02:48:22,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:22,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833329180] [2021-05-01 02:48:22,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:22,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:22,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:22,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:22,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:22,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:22,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:22,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:22,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:22,739 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:22,739 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:22,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833329180] [2021-05-01 02:48:22,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833329180] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:22,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:22,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:22,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117471089] [2021-05-01 02:48:22,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:22,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:22,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:22,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:22,742 INFO L87 Difference]: Start difference. First operand 419 states and 634 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:23,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:23,275 INFO L93 Difference]: Finished difference Result 537 states and 798 transitions. [2021-05-01 02:48:23,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:23,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2021-05-01 02:48:23,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:23,277 INFO L225 Difference]: With dead ends: 537 [2021-05-01 02:48:23,277 INFO L226 Difference]: Without dead ends: 537 [2021-05-01 02:48:23,278 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:23,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2021-05-01 02:48:23,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 421. [2021-05-01 02:48:23,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.5192307692307692) internal successors, (632), 416 states have internal predecessors, (632), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:23,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 636 transitions. [2021-05-01 02:48:23,284 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 636 transitions. Word has length 66 [2021-05-01 02:48:23,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:23,284 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 636 transitions. [2021-05-01 02:48:23,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:23,284 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 636 transitions. [2021-05-01 02:48:23,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-05-01 02:48:23,285 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:23,285 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:23,285 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-01 02:48:23,285 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:23,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:23,286 INFO L82 PathProgramCache]: Analyzing trace with hash 712595926, now seen corresponding path program 1 times [2021-05-01 02:48:23,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:23,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835338895] [2021-05-01 02:48:23,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:23,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:23,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:23,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:23,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:23,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:23,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:23,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:23,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:23,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835338895] [2021-05-01 02:48:23,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835338895] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:23,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:23,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:23,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041807087] [2021-05-01 02:48:23,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:23,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:23,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:23,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:23,356 INFO L87 Difference]: Start difference. First operand 421 states and 636 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) [2021-05-01 02:48:23,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:23,848 INFO L93 Difference]: Finished difference Result 535 states and 794 transitions. [2021-05-01 02:48:23,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:23,848 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 78 [2021-05-01 02:48:23,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:23,850 INFO L225 Difference]: With dead ends: 535 [2021-05-01 02:48:23,850 INFO L226 Difference]: Without dead ends: 535 [2021-05-01 02:48:23,850 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.9ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:23,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-05-01 02:48:23,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 421. [2021-05-01 02:48:23,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.5144230769230769) internal successors, (630), 416 states have internal predecessors, (630), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 634 transitions. [2021-05-01 02:48:23,857 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 634 transitions. Word has length 78 [2021-05-01 02:48:23,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:23,857 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 634 transitions. [2021-05-01 02:48:23,857 INFO L481 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) [2021-05-01 02:48:23,857 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 634 transitions. [2021-05-01 02:48:23,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-05-01 02:48:23,858 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:23,858 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:23,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-01 02:48:23,859 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:23,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:23,859 INFO L82 PathProgramCache]: Analyzing trace with hash -946707978, now seen corresponding path program 1 times [2021-05-01 02:48:23,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:23,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579616913] [2021-05-01 02:48:23,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:23,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:23,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:23,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:23,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:23,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:23,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:23,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:23,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:23,948 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:23,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:23,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579616913] [2021-05-01 02:48:23,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579616913] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:23,949 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:23,949 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:23,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582880919] [2021-05-01 02:48:23,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:23,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:23,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:23,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:23,951 INFO L87 Difference]: Start difference. First operand 421 states and 634 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) [2021-05-01 02:48:24,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:24,466 INFO L93 Difference]: Finished difference Result 535 states and 792 transitions. [2021-05-01 02:48:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:24,467 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 78 [2021-05-01 02:48:24,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:24,468 INFO L225 Difference]: With dead ends: 535 [2021-05-01 02:48:24,468 INFO L226 Difference]: Without dead ends: 535 [2021-05-01 02:48:24,469 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.7ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:24,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-05-01 02:48:24,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 421. [2021-05-01 02:48:24,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.5096153846153846) internal successors, (628), 416 states have internal predecessors, (628), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:24,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 632 transitions. [2021-05-01 02:48:24,475 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 632 transitions. Word has length 78 [2021-05-01 02:48:24,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:24,475 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 632 transitions. [2021-05-01 02:48:24,475 INFO L481 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) [2021-05-01 02:48:24,475 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 632 transitions. [2021-05-01 02:48:24,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-05-01 02:48:24,476 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:24,476 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2021-05-01 02:48:24,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-01 02:48:24,476 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:24,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:24,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1054477673, now seen corresponding path program 1 times [2021-05-01 02:48:24,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:24,476 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140008624] [2021-05-01 02:48:24,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:24,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:24,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:24,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:24,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:24,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:24,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:24,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:24,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:24,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:24,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:24,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:24,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:24,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:24,542 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:24,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140008624] [2021-05-01 02:48:24,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140008624] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:24,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:24,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:24,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023479592] [2021-05-01 02:48:24,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:24,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:24,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:24,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:24,543 INFO L87 Difference]: Start difference. First operand 421 states and 632 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) [2021-05-01 02:48:25,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:25,057 INFO L93 Difference]: Finished difference Result 535 states and 790 transitions. [2021-05-01 02:48:25,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:25,058 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 78 [2021-05-01 02:48:25,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:25,059 INFO L225 Difference]: With dead ends: 535 [2021-05-01 02:48:25,059 INFO L226 Difference]: Without dead ends: 535 [2021-05-01 02:48:25,060 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:25,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-05-01 02:48:25,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 421. [2021-05-01 02:48:25,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.5048076923076923) internal successors, (626), 416 states have internal predecessors, (626), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:25,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 630 transitions. [2021-05-01 02:48:25,066 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 630 transitions. Word has length 78 [2021-05-01 02:48:25,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:25,066 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 630 transitions. [2021-05-01 02:48:25,066 INFO L481 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) [2021-05-01 02:48:25,066 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 630 transitions. [2021-05-01 02:48:25,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-05-01 02:48:25,067 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:25,067 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:25,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-01 02:48:25,067 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:25,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:25,068 INFO L82 PathProgramCache]: Analyzing trace with hash -210087657, now seen corresponding path program 1 times [2021-05-01 02:48:25,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:25,068 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256213508] [2021-05-01 02:48:25,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:25,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:25,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:25,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:25,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:25,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:25,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:25,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:25,152 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:25,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:25,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256213508] [2021-05-01 02:48:25,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256213508] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:25,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:25,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:25,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881324214] [2021-05-01 02:48:25,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:25,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:25,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:25,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:25,153 INFO L87 Difference]: Start difference. First operand 421 states and 630 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) [2021-05-01 02:48:25,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:25,531 INFO L93 Difference]: Finished difference Result 463 states and 681 transitions. [2021-05-01 02:48:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:25,531 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 78 [2021-05-01 02:48:25,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:25,533 INFO L225 Difference]: With dead ends: 463 [2021-05-01 02:48:25,533 INFO L226 Difference]: Without dead ends: 463 [2021-05-01 02:48:25,533 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.4ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:25,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-05-01 02:48:25,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 421. [2021-05-01 02:48:25,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.5) internal successors, (624), 416 states have internal predecessors, (624), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:25,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 628 transitions. [2021-05-01 02:48:25,540 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 628 transitions. Word has length 78 [2021-05-01 02:48:25,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:25,540 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 628 transitions. [2021-05-01 02:48:25,540 INFO L481 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) [2021-05-01 02:48:25,540 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 628 transitions. [2021-05-01 02:48:25,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-05-01 02:48:25,541 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:25,541 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:25,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-01 02:48:25,541 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:25,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:25,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1869391561, now seen corresponding path program 1 times [2021-05-01 02:48:25,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:25,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472711765] [2021-05-01 02:48:25,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:25,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:25,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:25,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:25,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:25,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:25,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:25,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:25,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:25,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:25,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472711765] [2021-05-01 02:48:25,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472711765] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:25,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:25,614 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:25,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984018597] [2021-05-01 02:48:25,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:25,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:25,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:25,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:25,615 INFO L87 Difference]: Start difference. First operand 421 states and 628 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) [2021-05-01 02:48:26,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:26,005 INFO L93 Difference]: Finished difference Result 463 states and 679 transitions. [2021-05-01 02:48:26,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:26,006 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 78 [2021-05-01 02:48:26,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:26,007 INFO L225 Difference]: With dead ends: 463 [2021-05-01 02:48:26,007 INFO L226 Difference]: Without dead ends: 463 [2021-05-01 02:48:26,007 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.0ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:26,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-05-01 02:48:26,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 421. [2021-05-01 02:48:26,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.4951923076923077) internal successors, (622), 416 states have internal predecessors, (622), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 626 transitions. [2021-05-01 02:48:26,013 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 626 transitions. Word has length 78 [2021-05-01 02:48:26,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:26,013 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 626 transitions. [2021-05-01 02:48:26,013 INFO L481 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) [2021-05-01 02:48:26,014 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 626 transitions. [2021-05-01 02:48:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-05-01 02:48:26,014 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:26,014 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2021-05-01 02:48:26,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-01 02:48:26,015 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:26,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:26,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1977161256, now seen corresponding path program 1 times [2021-05-01 02:48:26,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:26,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371138231] [2021-05-01 02:48:26,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:26,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:26,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:26,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:26,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:26,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:26,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:26,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:26,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:26,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371138231] [2021-05-01 02:48:26,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371138231] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:26,079 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:26,079 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:26,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400502526] [2021-05-01 02:48:26,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:26,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:26,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:26,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:26,080 INFO L87 Difference]: Start difference. First operand 421 states and 626 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) [2021-05-01 02:48:26,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:26,450 INFO L93 Difference]: Finished difference Result 463 states and 677 transitions. [2021-05-01 02:48:26,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:26,451 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 78 [2021-05-01 02:48:26,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:26,452 INFO L225 Difference]: With dead ends: 463 [2021-05-01 02:48:26,452 INFO L226 Difference]: Without dead ends: 463 [2021-05-01 02:48:26,452 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.9ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:26,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-05-01 02:48:26,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 421. [2021-05-01 02:48:26,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.4903846153846154) internal successors, (620), 416 states have internal predecessors, (620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:26,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 624 transitions. [2021-05-01 02:48:26,459 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 624 transitions. Word has length 78 [2021-05-01 02:48:26,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:26,459 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 624 transitions. [2021-05-01 02:48:26,459 INFO L481 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) [2021-05-01 02:48:26,459 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 624 transitions. [2021-05-01 02:48:26,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-05-01 02:48:26,460 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:26,460 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:26,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-05-01 02:48:26,460 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:26,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:26,460 INFO L82 PathProgramCache]: Analyzing trace with hash -913417389, now seen corresponding path program 1 times [2021-05-01 02:48:26,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:26,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496960596] [2021-05-01 02:48:26,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:26,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:26,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:26,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:26,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:26,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:26,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:26,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:26,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:26,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:26,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496960596] [2021-05-01 02:48:26,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496960596] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:26,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:26,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:26,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951261669] [2021-05-01 02:48:26,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:26,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:26,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:26,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:26,540 INFO L87 Difference]: Start difference. First operand 421 states and 624 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) [2021-05-01 02:48:27,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:27,046 INFO L93 Difference]: Finished difference Result 535 states and 782 transitions. [2021-05-01 02:48:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:27,046 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 79 [2021-05-01 02:48:27,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:27,048 INFO L225 Difference]: With dead ends: 535 [2021-05-01 02:48:27,048 INFO L226 Difference]: Without dead ends: 535 [2021-05-01 02:48:27,048 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:27,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-05-01 02:48:27,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 421. [2021-05-01 02:48:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.4855769230769231) internal successors, (618), 416 states have internal predecessors, (618), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:27,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 622 transitions. [2021-05-01 02:48:27,054 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 622 transitions. Word has length 79 [2021-05-01 02:48:27,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:27,054 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 622 transitions. [2021-05-01 02:48:27,054 INFO L481 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) [2021-05-01 02:48:27,054 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 622 transitions. [2021-05-01 02:48:27,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-05-01 02:48:27,055 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:27,055 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2021-05-01 02:48:27,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-01 02:48:27,055 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:27,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:27,055 INFO L82 PathProgramCache]: Analyzing trace with hash 597539124, now seen corresponding path program 1 times [2021-05-01 02:48:27,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:27,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860420755] [2021-05-01 02:48:27,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:27,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:27,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:27,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:27,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:27,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:27,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:27,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:27,123 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:27,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:27,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860420755] [2021-05-01 02:48:27,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860420755] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:27,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:27,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:27,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890191390] [2021-05-01 02:48:27,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:27,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:27,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:27,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:27,124 INFO L87 Difference]: Start difference. First operand 421 states and 622 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) [2021-05-01 02:48:27,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:27,603 INFO L93 Difference]: Finished difference Result 529 states and 773 transitions. [2021-05-01 02:48:27,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:27,603 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 79 [2021-05-01 02:48:27,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:27,605 INFO L225 Difference]: With dead ends: 529 [2021-05-01 02:48:27,605 INFO L226 Difference]: Without dead ends: 529 [2021-05-01 02:48:27,605 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:27,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2021-05-01 02:48:27,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 421. [2021-05-01 02:48:27,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.4807692307692308) internal successors, (616), 416 states have internal predecessors, (616), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:27,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 620 transitions. [2021-05-01 02:48:27,611 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 620 transitions. Word has length 79 [2021-05-01 02:48:27,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:27,611 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 620 transitions. [2021-05-01 02:48:27,611 INFO L481 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) [2021-05-01 02:48:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 620 transitions. [2021-05-01 02:48:27,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-05-01 02:48:27,612 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:27,612 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:27,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-01 02:48:27,612 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:27,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:27,612 INFO L82 PathProgramCache]: Analyzing trace with hash 548162610, now seen corresponding path program 1 times [2021-05-01 02:48:27,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:27,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178454878] [2021-05-01 02:48:27,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:27,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:27,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:27,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:27,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:27,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:27,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:27,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:27,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:27,672 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:27,672 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178454878] [2021-05-01 02:48:27,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178454878] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:27,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:27,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:27,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239146417] [2021-05-01 02:48:27,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:27,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:27,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:27,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:27,673 INFO L87 Difference]: Start difference. First operand 421 states and 620 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) [2021-05-01 02:48:28,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:28,051 INFO L93 Difference]: Finished difference Result 463 states and 671 transitions. [2021-05-01 02:48:28,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:28,052 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 79 [2021-05-01 02:48:28,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:28,053 INFO L225 Difference]: With dead ends: 463 [2021-05-01 02:48:28,053 INFO L226 Difference]: Without dead ends: 463 [2021-05-01 02:48:28,053 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.5ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:28,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-05-01 02:48:28,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 421. [2021-05-01 02:48:28,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.4759615384615385) internal successors, (614), 416 states have internal predecessors, (614), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:28,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 618 transitions. [2021-05-01 02:48:28,061 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 618 transitions. Word has length 79 [2021-05-01 02:48:28,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:28,061 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 618 transitions. [2021-05-01 02:48:28,061 INFO L481 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) [2021-05-01 02:48:28,062 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 618 transitions. [2021-05-01 02:48:28,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-05-01 02:48:28,062 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:28,062 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2021-05-01 02:48:28,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-05-01 02:48:28,063 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:28,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:28,063 INFO L82 PathProgramCache]: Analyzing trace with hash 2059119123, now seen corresponding path program 1 times [2021-05-01 02:48:28,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:28,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454333998] [2021-05-01 02:48:28,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:28,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:28,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:28,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:28,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:28,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:28,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:28,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:28,126 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:28,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:28,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454333998] [2021-05-01 02:48:28,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454333998] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:28,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:28,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:28,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693343030] [2021-05-01 02:48:28,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:28,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:28,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:28,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:28,129 INFO L87 Difference]: Start difference. First operand 421 states and 618 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) [2021-05-01 02:48:28,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:28,495 INFO L93 Difference]: Finished difference Result 457 states and 662 transitions. [2021-05-01 02:48:28,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:28,496 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 79 [2021-05-01 02:48:28,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:28,497 INFO L225 Difference]: With dead ends: 457 [2021-05-01 02:48:28,497 INFO L226 Difference]: Without dead ends: 457 [2021-05-01 02:48:28,497 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.4ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:28,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-05-01 02:48:28,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 421. [2021-05-01 02:48:28,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.4711538461538463) internal successors, (612), 416 states have internal predecessors, (612), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:28,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 616 transitions. [2021-05-01 02:48:28,503 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 616 transitions. Word has length 79 [2021-05-01 02:48:28,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:28,503 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 616 transitions. [2021-05-01 02:48:28,504 INFO L481 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) [2021-05-01 02:48:28,504 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 616 transitions. [2021-05-01 02:48:28,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-05-01 02:48:28,504 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:28,505 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:28,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-05-01 02:48:28,505 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:28,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:28,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1521790618, now seen corresponding path program 1 times [2021-05-01 02:48:28,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:28,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221636317] [2021-05-01 02:48:28,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:28,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:28,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:28,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:28,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:28,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:28,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:28,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:28,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:28,562 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:28,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:28,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221636317] [2021-05-01 02:48:28,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221636317] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:28,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:28,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:28,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209704295] [2021-05-01 02:48:28,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:28,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:28,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:28,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:28,563 INFO L87 Difference]: Start difference. First operand 421 states and 616 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:29,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:29,050 INFO L93 Difference]: Finished difference Result 529 states and 767 transitions. [2021-05-01 02:48:29,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:29,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2021-05-01 02:48:29,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:29,052 INFO L225 Difference]: With dead ends: 529 [2021-05-01 02:48:29,052 INFO L226 Difference]: Without dead ends: 529 [2021-05-01 02:48:29,052 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.8ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:29,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2021-05-01 02:48:29,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 421. [2021-05-01 02:48:29,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.4663461538461537) internal successors, (610), 416 states have internal predecessors, (610), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:29,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 614 transitions. [2021-05-01 02:48:29,058 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 614 transitions. Word has length 80 [2021-05-01 02:48:29,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:29,058 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 614 transitions. [2021-05-01 02:48:29,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:29,058 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 614 transitions. [2021-05-01 02:48:29,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-05-01 02:48:29,059 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:29,059 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:29,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-01 02:48:29,059 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:29,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:29,059 INFO L82 PathProgramCache]: Analyzing trace with hash -413869669, now seen corresponding path program 1 times [2021-05-01 02:48:29,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:29,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584115719] [2021-05-01 02:48:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:29,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:29,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:29,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:29,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:29,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:29,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:29,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:29,113 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:29,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:29,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584115719] [2021-05-01 02:48:29,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584115719] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:29,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:29,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:29,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142449594] [2021-05-01 02:48:29,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:29,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:29,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:29,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:29,115 INFO L87 Difference]: Start difference. First operand 421 states and 614 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:29,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:29,460 INFO L93 Difference]: Finished difference Result 457 states and 658 transitions. [2021-05-01 02:48:29,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:29,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2021-05-01 02:48:29,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:29,466 INFO L225 Difference]: With dead ends: 457 [2021-05-01 02:48:29,466 INFO L226 Difference]: Without dead ends: 457 [2021-05-01 02:48:29,466 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:29,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-05-01 02:48:29,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 421. [2021-05-01 02:48:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.4615384615384615) internal successors, (608), 416 states have internal predecessors, (608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 612 transitions. [2021-05-01 02:48:29,472 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 612 transitions. Word has length 80 [2021-05-01 02:48:29,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:29,472 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 612 transitions. [2021-05-01 02:48:29,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:29,472 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 612 transitions. [2021-05-01 02:48:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-05-01 02:48:29,473 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:29,473 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:29,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-05-01 02:48:29,473 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:29,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:29,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1148974748, now seen corresponding path program 1 times [2021-05-01 02:48:29,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:29,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900140897] [2021-05-01 02:48:29,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:29,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:29,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:29,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:29,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:29,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:29,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:29,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:29,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:29,542 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:29,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900140897] [2021-05-01 02:48:29,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900140897] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:29,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:29,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:29,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748470546] [2021-05-01 02:48:29,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:29,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:29,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:29,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:29,543 INFO L87 Difference]: Start difference. First operand 421 states and 612 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:29,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:29,992 INFO L93 Difference]: Finished difference Result 529 states and 763 transitions. [2021-05-01 02:48:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:29,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2021-05-01 02:48:29,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:29,994 INFO L225 Difference]: With dead ends: 529 [2021-05-01 02:48:29,994 INFO L226 Difference]: Without dead ends: 529 [2021-05-01 02:48:29,994 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.7ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:29,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2021-05-01 02:48:29,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 421. [2021-05-01 02:48:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.4567307692307692) internal successors, (606), 416 states have internal predecessors, (606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:29,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 610 transitions. [2021-05-01 02:48:30,000 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 610 transitions. Word has length 81 [2021-05-01 02:48:30,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:30,000 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 610 transitions. [2021-05-01 02:48:30,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:30,000 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 610 transitions. [2021-05-01 02:48:30,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-05-01 02:48:30,001 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:30,001 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:30,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-01 02:48:30,001 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:30,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:30,001 INFO L82 PathProgramCache]: Analyzing trace with hash 756227318, now seen corresponding path program 1 times [2021-05-01 02:48:30,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:30,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23377699] [2021-05-01 02:48:30,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:30,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:30,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:30,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:30,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 02:48:30,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:30,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:30,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:30,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:30,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:30,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:30,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:30,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:30,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:30,056 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-05-01 02:48:30,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:30,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23377699] [2021-05-01 02:48:30,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23377699] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:30,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:30,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:30,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921659213] [2021-05-01 02:48:30,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:30,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:30,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:30,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:30,057 INFO L87 Difference]: Start difference. First operand 421 states and 610 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:30,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:30,523 INFO L93 Difference]: Finished difference Result 511 states and 739 transitions. [2021-05-01 02:48:30,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:30,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2021-05-01 02:48:30,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:30,525 INFO L225 Difference]: With dead ends: 511 [2021-05-01 02:48:30,525 INFO L226 Difference]: Without dead ends: 511 [2021-05-01 02:48:30,526 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.8ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:30,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-05-01 02:48:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 421. [2021-05-01 02:48:30,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.4519230769230769) internal successors, (604), 416 states have internal predecessors, (604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:30,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 608 transitions. [2021-05-01 02:48:30,531 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 608 transitions. Word has length 81 [2021-05-01 02:48:30,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:30,531 INFO L480 AbstractCegarLoop]: Abstraction has 421 states and 608 transitions. [2021-05-01 02:48:30,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:30,532 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 608 transitions. [2021-05-01 02:48:30,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-05-01 02:48:30,532 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:30,532 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:30,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-05-01 02:48:30,533 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:30,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:30,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1273047995, now seen corresponding path program 1 times [2021-05-01 02:48:30,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:30,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312318868] [2021-05-01 02:48:30,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:30,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:30,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:30,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:30,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:30,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:30,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:30,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:30,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:30,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:30,584 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-05-01 02:48:30,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:30,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312318868] [2021-05-01 02:48:30,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312318868] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:30,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:30,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 02:48:30,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484393579] [2021-05-01 02:48:30,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 02:48:30,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:30,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 02:48:30,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:48:30,585 INFO L87 Difference]: Start difference. First operand 421 states and 608 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:30,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:30,972 INFO L93 Difference]: Finished difference Result 573 states and 826 transitions. [2021-05-01 02:48:30,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 02:48:30,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2021-05-01 02:48:30,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:30,974 INFO L225 Difference]: With dead ends: 573 [2021-05-01 02:48:30,974 INFO L226 Difference]: Without dead ends: 573 [2021-05-01 02:48:30,974 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:48:30,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-05-01 02:48:30,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2021-05-01 02:48:30,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 568 states have (on average 1.4471830985915493) internal successors, (822), 568 states have internal predecessors, (822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 826 transitions. [2021-05-01 02:48:30,980 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 826 transitions. Word has length 81 [2021-05-01 02:48:30,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:30,980 INFO L480 AbstractCegarLoop]: Abstraction has 573 states and 826 transitions. [2021-05-01 02:48:30,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:30,980 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 826 transitions. [2021-05-01 02:48:30,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-05-01 02:48:30,981 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:30,981 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:30,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-05-01 02:48:30,981 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:30,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:30,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1327386226, now seen corresponding path program 1 times [2021-05-01 02:48:30,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:30,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963508870] [2021-05-01 02:48:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:31,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:31,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:31,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:31,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:31,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-05-01 02:48:31,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:31,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963508870] [2021-05-01 02:48:31,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963508870] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:31,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:31,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 02:48:31,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778734281] [2021-05-01 02:48:31,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 02:48:31,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:31,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 02:48:31,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:48:31,038 INFO L87 Difference]: Start difference. First operand 573 states and 826 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:31,276 INFO L93 Difference]: Finished difference Result 726 states and 1049 transitions. [2021-05-01 02:48:31,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 02:48:31,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2021-05-01 02:48:31,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:31,282 INFO L225 Difference]: With dead ends: 726 [2021-05-01 02:48:31,282 INFO L226 Difference]: Without dead ends: 726 [2021-05-01 02:48:31,283 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.0ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:48:31,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-05-01 02:48:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 726. [2021-05-01 02:48:31,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 721 states have (on average 1.449375866851595) internal successors, (1045), 721 states have internal predecessors, (1045), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1049 transitions. [2021-05-01 02:48:31,290 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1049 transitions. Word has length 83 [2021-05-01 02:48:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:31,290 INFO L480 AbstractCegarLoop]: Abstraction has 726 states and 1049 transitions. [2021-05-01 02:48:31,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:31,290 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1049 transitions. [2021-05-01 02:48:31,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-05-01 02:48:31,291 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:31,292 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:31,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-05-01 02:48:31,292 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:31,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:31,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1358069101, now seen corresponding path program 1 times [2021-05-01 02:48:31,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:31,292 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936841411] [2021-05-01 02:48:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:31,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:31,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:31,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:31,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:31,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:31,346 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-05-01 02:48:31,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:31,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936841411] [2021-05-01 02:48:31,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936841411] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:31,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:31,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 02:48:31,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358096396] [2021-05-01 02:48:31,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 02:48:31,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:31,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 02:48:31,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:48:31,347 INFO L87 Difference]: Start difference. First operand 726 states and 1049 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 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) [2021-05-01 02:48:31,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:31,707 INFO L93 Difference]: Finished difference Result 723 states and 1039 transitions. [2021-05-01 02:48:31,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 02:48:31,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 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 104 [2021-05-01 02:48:31,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:31,710 INFO L225 Difference]: With dead ends: 723 [2021-05-01 02:48:31,710 INFO L226 Difference]: Without dead ends: 723 [2021-05-01 02:48:31,710 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 02:48:31,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-05-01 02:48:31,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2021-05-01 02:48:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 718 states have (on average 1.4415041782729805) internal successors, (1035), 718 states have internal predecessors, (1035), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1039 transitions. [2021-05-01 02:48:31,717 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1039 transitions. Word has length 104 [2021-05-01 02:48:31,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:31,717 INFO L480 AbstractCegarLoop]: Abstraction has 723 states and 1039 transitions. [2021-05-01 02:48:31,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 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) [2021-05-01 02:48:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1039 transitions. [2021-05-01 02:48:31,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-05-01 02:48:31,719 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:31,719 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:31,719 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-05-01 02:48:31,719 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:31,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:31,719 INFO L82 PathProgramCache]: Analyzing trace with hash 596214831, now seen corresponding path program 1 times [2021-05-01 02:48:31,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:31,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734003958] [2021-05-01 02:48:31,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:31,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:31,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:31,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:31,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:31,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:31,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:31,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:31,783 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-05-01 02:48:31,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:31,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734003958] [2021-05-01 02:48:31,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734003958] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:31,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:31,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:31,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702220007] [2021-05-01 02:48:31,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:31,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:31,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:31,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:31,784 INFO L87 Difference]: Start difference. First operand 723 states and 1039 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:32,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:32,196 INFO L93 Difference]: Finished difference Result 979 states and 1408 transitions. [2021-05-01 02:48:32,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:32,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2021-05-01 02:48:32,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:32,199 INFO L225 Difference]: With dead ends: 979 [2021-05-01 02:48:32,199 INFO L226 Difference]: Without dead ends: 979 [2021-05-01 02:48:32,199 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.4ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:32,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2021-05-01 02:48:32,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 843. [2021-05-01 02:48:32,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 838 states have (on average 1.4856801909307875) internal successors, (1245), 838 states have internal predecessors, (1245), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1249 transitions. [2021-05-01 02:48:32,208 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1249 transitions. Word has length 106 [2021-05-01 02:48:32,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:32,209 INFO L480 AbstractCegarLoop]: Abstraction has 843 states and 1249 transitions. [2021-05-01 02:48:32,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:32,209 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1249 transitions. [2021-05-01 02:48:32,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-05-01 02:48:32,210 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:32,210 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:32,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-05-01 02:48:32,210 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:32,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:32,211 INFO L82 PathProgramCache]: Analyzing trace with hash -903827051, now seen corresponding path program 1 times [2021-05-01 02:48:32,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:32,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317129921] [2021-05-01 02:48:32,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:32,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:32,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:32,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:32,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:32,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:32,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:32,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:32,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:32,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:32,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:32,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:32,280 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-05-01 02:48:32,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:32,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317129921] [2021-05-01 02:48:32,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317129921] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:32,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:32,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:32,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140984984] [2021-05-01 02:48:32,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:32,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:32,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:32,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:32,281 INFO L87 Difference]: Start difference. First operand 843 states and 1249 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:32,654 INFO L93 Difference]: Finished difference Result 974 states and 1398 transitions. [2021-05-01 02:48:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:32,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2021-05-01 02:48:32,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:32,656 INFO L225 Difference]: With dead ends: 974 [2021-05-01 02:48:32,657 INFO L226 Difference]: Without dead ends: 974 [2021-05-01 02:48:32,657 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:32,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2021-05-01 02:48:32,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 843. [2021-05-01 02:48:32,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 838 states have (on average 1.4797136038186158) internal successors, (1240), 838 states have internal predecessors, (1240), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:32,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1244 transitions. [2021-05-01 02:48:32,666 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1244 transitions. Word has length 121 [2021-05-01 02:48:32,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:32,666 INFO L480 AbstractCegarLoop]: Abstraction has 843 states and 1244 transitions. [2021-05-01 02:48:32,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:32,666 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1244 transitions. [2021-05-01 02:48:32,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-05-01 02:48:32,667 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:32,668 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:32,668 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-05-01 02:48:32,668 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:32,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:32,668 INFO L82 PathProgramCache]: Analyzing trace with hash -2062011979, now seen corresponding path program 1 times [2021-05-01 02:48:32,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:32,668 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42182366] [2021-05-01 02:48:32,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:32,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:32,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:32,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:32,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:32,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:32,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:32,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:32,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:32,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:32,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:32,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:32,729 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-05-01 02:48:32,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:32,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42182366] [2021-05-01 02:48:32,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42182366] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:32,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:32,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:32,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779781682] [2021-05-01 02:48:32,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:32,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:32,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:32,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:32,730 INFO L87 Difference]: Start difference. First operand 843 states and 1244 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:33,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:33,111 INFO L93 Difference]: Finished difference Result 974 states and 1393 transitions. [2021-05-01 02:48:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:33,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2021-05-01 02:48:33,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:33,114 INFO L225 Difference]: With dead ends: 974 [2021-05-01 02:48:33,114 INFO L226 Difference]: Without dead ends: 974 [2021-05-01 02:48:33,114 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.0ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:33,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2021-05-01 02:48:33,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 843. [2021-05-01 02:48:33,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 838 states have (on average 1.473747016706444) internal successors, (1235), 838 states have internal predecessors, (1235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:33,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1239 transitions. [2021-05-01 02:48:33,123 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1239 transitions. Word has length 121 [2021-05-01 02:48:33,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:33,123 INFO L480 AbstractCegarLoop]: Abstraction has 843 states and 1239 transitions. [2021-05-01 02:48:33,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:33,123 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1239 transitions. [2021-05-01 02:48:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-05-01 02:48:33,124 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:33,124 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:33,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-05-01 02:48:33,125 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:33,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:33,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1745493526, now seen corresponding path program 1 times [2021-05-01 02:48:33,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:33,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885515928] [2021-05-01 02:48:33,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:33,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:33,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:33,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:33,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:33,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:33,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:33,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:33,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:33,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:33,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:33,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:33,183 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-05-01 02:48:33,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:33,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885515928] [2021-05-01 02:48:33,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885515928] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:33,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:33,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:33,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224182492] [2021-05-01 02:48:33,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:33,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:33,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:33,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:33,185 INFO L87 Difference]: Start difference. First operand 843 states and 1239 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:33,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:33,573 INFO L93 Difference]: Finished difference Result 981 states and 1438 transitions. [2021-05-01 02:48:33,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:33,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2021-05-01 02:48:33,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:33,576 INFO L225 Difference]: With dead ends: 981 [2021-05-01 02:48:33,576 INFO L226 Difference]: Without dead ends: 981 [2021-05-01 02:48:33,576 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.5ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:33,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2021-05-01 02:48:33,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 915. [2021-05-01 02:48:33,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 910 states have (on average 1.489010989010989) internal successors, (1355), 910 states have internal predecessors, (1355), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:33,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1359 transitions. [2021-05-01 02:48:33,586 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1359 transitions. Word has length 121 [2021-05-01 02:48:33,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:33,586 INFO L480 AbstractCegarLoop]: Abstraction has 915 states and 1359 transitions. [2021-05-01 02:48:33,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1359 transitions. [2021-05-01 02:48:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-05-01 02:48:33,587 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:33,587 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:33,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-05-01 02:48:33,587 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:33,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:33,588 INFO L82 PathProgramCache]: Analyzing trace with hash 586575468, now seen corresponding path program 1 times [2021-05-01 02:48:33,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:33,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472853623] [2021-05-01 02:48:33,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:33,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:33,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:33,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:33,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:33,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:33,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:33,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:33,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:33,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:33,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:33,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-05-01 02:48:33,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:33,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472853623] [2021-05-01 02:48:33,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472853623] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:33,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:33,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:33,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216098302] [2021-05-01 02:48:33,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:33,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:33,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:33,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:33,655 INFO L87 Difference]: Start difference. First operand 915 states and 1359 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) [2021-05-01 02:48:34,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:34,035 INFO L93 Difference]: Finished difference Result 1046 states and 1508 transitions. [2021-05-01 02:48:34,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:34,035 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 122 [2021-05-01 02:48:34,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:34,038 INFO L225 Difference]: With dead ends: 1046 [2021-05-01 02:48:34,038 INFO L226 Difference]: Without dead ends: 1046 [2021-05-01 02:48:34,038 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.9ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:34,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-05-01 02:48:34,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 915. [2021-05-01 02:48:34,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 910 states have (on average 1.4835164835164836) internal successors, (1350), 910 states have internal predecessors, (1350), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:34,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1354 transitions. [2021-05-01 02:48:34,047 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1354 transitions. Word has length 122 [2021-05-01 02:48:34,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:34,047 INFO L480 AbstractCegarLoop]: Abstraction has 915 states and 1354 transitions. [2021-05-01 02:48:34,047 INFO L481 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) [2021-05-01 02:48:34,047 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1354 transitions. [2021-05-01 02:48:34,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-05-01 02:48:34,048 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:34,048 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:34,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-05-01 02:48:34,049 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:34,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:34,049 INFO L82 PathProgramCache]: Analyzing trace with hash 943634585, now seen corresponding path program 1 times [2021-05-01 02:48:34,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:34,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134853825] [2021-05-01 02:48:34,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:34,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:34,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:34,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:34,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:34,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:34,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:34,107 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-05-01 02:48:34,107 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:34,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134853825] [2021-05-01 02:48:34,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134853825] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:34,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:34,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:34,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200687364] [2021-05-01 02:48:34,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:34,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:34,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:34,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:34,108 INFO L87 Difference]: Start difference. First operand 915 states and 1354 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:34,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:34,478 INFO L93 Difference]: Finished difference Result 1046 states and 1503 transitions. [2021-05-01 02:48:34,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:34,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2021-05-01 02:48:34,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:34,481 INFO L225 Difference]: With dead ends: 1046 [2021-05-01 02:48:34,481 INFO L226 Difference]: Without dead ends: 1046 [2021-05-01 02:48:34,481 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:34,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-05-01 02:48:34,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 915. [2021-05-01 02:48:34,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 910 states have (on average 1.478021978021978) internal successors, (1345), 910 states have internal predecessors, (1345), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1349 transitions. [2021-05-01 02:48:34,489 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1349 transitions. Word has length 123 [2021-05-01 02:48:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:34,490 INFO L480 AbstractCegarLoop]: Abstraction has 915 states and 1349 transitions. [2021-05-01 02:48:34,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1349 transitions. [2021-05-01 02:48:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-05-01 02:48:34,491 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:34,491 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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] [2021-05-01 02:48:34,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-05-01 02:48:34,491 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:34,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:34,492 INFO L82 PathProgramCache]: Analyzing trace with hash 639627317, now seen corresponding path program 1 times [2021-05-01 02:48:34,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:34,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111234692] [2021-05-01 02:48:34,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:34,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:34,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:34,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:34,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:34,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:34,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:34,550 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-05-01 02:48:34,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:34,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111234692] [2021-05-01 02:48:34,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111234692] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:34,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:34,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:34,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150447406] [2021-05-01 02:48:34,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:34,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:34,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:34,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:34,551 INFO L87 Difference]: Start difference. First operand 915 states and 1349 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:34,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:34,928 INFO L93 Difference]: Finished difference Result 1146 states and 1683 transitions. [2021-05-01 02:48:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:34,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2021-05-01 02:48:34,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:34,932 INFO L225 Difference]: With dead ends: 1146 [2021-05-01 02:48:34,932 INFO L226 Difference]: Without dead ends: 1146 [2021-05-01 02:48:34,932 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:34,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2021-05-01 02:48:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1025. [2021-05-01 02:48:34,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1020 states have (on average 1.5049019607843137) internal successors, (1535), 1020 states have internal predecessors, (1535), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1539 transitions. [2021-05-01 02:48:34,959 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1539 transitions. Word has length 124 [2021-05-01 02:48:34,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:34,959 INFO L480 AbstractCegarLoop]: Abstraction has 1025 states and 1539 transitions. [2021-05-01 02:48:34,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:34,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1539 transitions. [2021-05-01 02:48:34,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-05-01 02:48:34,961 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:34,961 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:34,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-05-01 02:48:34,961 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:34,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:34,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1166469135, now seen corresponding path program 1 times [2021-05-01 02:48:34,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:34,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074265957] [2021-05-01 02:48:34,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:34,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:34,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 02:48:34,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:34,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:35,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:35,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:35,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:35,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:35,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-05-01 02:48:35,028 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:35,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074265957] [2021-05-01 02:48:35,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074265957] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:35,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:35,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 02:48:35,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565889119] [2021-05-01 02:48:35,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 02:48:35,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:35,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 02:48:35,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 02:48:35,030 INFO L87 Difference]: Start difference. First operand 1025 states and 1539 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:35,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:35,375 INFO L93 Difference]: Finished difference Result 1111 states and 1633 transitions. [2021-05-01 02:48:35,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 02:48:35,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2021-05-01 02:48:35,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:35,378 INFO L225 Difference]: With dead ends: 1111 [2021-05-01 02:48:35,378 INFO L226 Difference]: Without dead ends: 1111 [2021-05-01 02:48:35,379 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 02:48:35,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2021-05-01 02:48:35,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1025. [2021-05-01 02:48:35,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1020 states have (on average 1.5) internal successors, (1530), 1020 states have internal predecessors, (1530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:35,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1534 transitions. [2021-05-01 02:48:35,394 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1534 transitions. Word has length 124 [2021-05-01 02:48:35,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:35,394 INFO L480 AbstractCegarLoop]: Abstraction has 1025 states and 1534 transitions. [2021-05-01 02:48:35,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:35,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1534 transitions. [2021-05-01 02:48:35,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-05-01 02:48:35,397 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:35,397 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:35,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-05-01 02:48:35,397 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:35,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:35,397 INFO L82 PathProgramCache]: Analyzing trace with hash 998047110, now seen corresponding path program 1 times [2021-05-01 02:48:35,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:35,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043025349] [2021-05-01 02:48:35,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:35,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:35,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:35,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:35,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:35,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:35,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 02:48:35,488 INFO L142 QuantifierPusher]: treesize reduction 17, result has 63.0 percent of original size [2021-05-01 02:48:35,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-01 02:48:35,498 INFO L142 QuantifierPusher]: treesize reduction 17, result has 48.5 percent of original size [2021-05-01 02:48:35,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 02:48:35,503 INFO L142 QuantifierPusher]: treesize reduction 17, result has 37.0 percent of original size [2021-05-01 02:48:35,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-01 02:48:35,509 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 02:48:35,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:35,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:35,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:35,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 02:48:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 02:48:35,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 02:48:35,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 02:48:35,540 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-05-01 02:48:35,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 02:48:35,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043025349] [2021-05-01 02:48:35,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043025349] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 02:48:35,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 02:48:35,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-01 02:48:35,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507496235] [2021-05-01 02:48:35,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-01 02:48:35,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 02:48:35,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-01 02:48:35,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-01 02:48:35,541 INFO L87 Difference]: Start difference. First operand 1025 states and 1534 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2021-05-01 02:48:35,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 02:48:35,946 INFO L93 Difference]: Finished difference Result 1029 states and 1538 transitions. [2021-05-01 02:48:35,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 02:48:35,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 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 128 [2021-05-01 02:48:35,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 02:48:35,949 INFO L225 Difference]: With dead ends: 1029 [2021-05-01 02:48:35,949 INFO L226 Difference]: Without dead ends: 1029 [2021-05-01 02:48:35,949 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 88.5ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-05-01 02:48:35,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2021-05-01 02:48:35,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 1028. [2021-05-01 02:48:35,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1023 states have (on average 1.498533724340176) internal successors, (1533), 1023 states have internal predecessors, (1533), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 02:48:35,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1537 transitions. [2021-05-01 02:48:35,958 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1537 transitions. Word has length 128 [2021-05-01 02:48:35,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 02:48:35,958 INFO L480 AbstractCegarLoop]: Abstraction has 1028 states and 1537 transitions. [2021-05-01 02:48:35,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2021-05-01 02:48:35,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1537 transitions. [2021-05-01 02:48:35,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-05-01 02:48:35,959 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 02:48:35,960 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 02:48:35,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-05-01 02:48:35,960 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 02:48:35,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 02:48:35,960 INFO L82 PathProgramCache]: Analyzing trace with hash 144716696, now seen corresponding path program 1 times [2021-05-01 02:48:35,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 02:48:35,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365100557] [2021-05-01 02:48:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 02:48:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-01 02:48:36,033 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-01 02:48:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-01 02:48:36,104 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-01 02:48:36,145 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-01 02:48:36,145 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-05-01 02:48:36,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-05-01 02:48:36,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 02:48:36 BasicIcfg [2021-05-01 02:48:36,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 02:48:36,250 INFO L168 Benchmark]: Toolchain (without parser) took 18930.45 ms. Allocated memory was 188.7 MB in the beginning and 457.2 MB in the end (delta: 268.4 MB). Free memory was 151.0 MB in the beginning and 324.7 MB in the end (delta: -173.7 MB). Peak memory consumption was 95.3 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:36,250 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 188.7 MB. Free memory is still 169.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 02:48:36,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.61 ms. Allocated memory is still 188.7 MB. Free memory was 150.8 MB in the beginning and 153.0 MB in the end (delta: -2.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:36,256 INFO L168 Benchmark]: Boogie Preprocessor took 93.82 ms. Allocated memory is still 188.7 MB. Free memory was 153.0 MB in the beginning and 146.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:36,257 INFO L168 Benchmark]: RCFGBuilder took 819.78 ms. Allocated memory is still 188.7 MB. Free memory was 146.2 MB in the beginning and 103.3 MB in the end (delta: 42.8 MB). Peak memory consumption was 44.4 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:36,257 INFO L168 Benchmark]: IcfgTransformer took 28.86 ms. Allocated memory is still 188.7 MB. Free memory was 103.3 MB in the beginning and 98.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:36,257 INFO L168 Benchmark]: TraceAbstraction took 17595.03 ms. Allocated memory was 188.7 MB in the beginning and 457.2 MB in the end (delta: 268.4 MB). Free memory was 98.1 MB in the beginning and 324.7 MB in the end (delta: -226.6 MB). Peak memory consumption was 41.3 MB. Max. memory is 8.0 GB. [2021-05-01 02:48:36,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 188.7 MB. Free memory is still 169.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 385.61 ms. Allocated memory is still 188.7 MB. Free memory was 150.8 MB in the beginning and 153.0 MB in the end (delta: -2.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.82 ms. Allocated memory is still 188.7 MB. Free memory was 153.0 MB in the beginning and 146.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 819.78 ms. Allocated memory is still 188.7 MB. Free memory was 146.2 MB in the beginning and 103.3 MB in the end (delta: 42.8 MB). Peak memory consumption was 44.4 MB. Max. memory is 8.0 GB. * IcfgTransformer took 28.86 ms. Allocated memory is still 188.7 MB. Free memory was 103.3 MB in the beginning and 98.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17595.03 ms. Allocated memory was 188.7 MB in the beginning and 457.2 MB in the end (delta: 268.4 MB). Free memory was 98.1 MB in the beginning and 324.7 MB in the end (delta: -226.6 MB). Peak memory consumption was 41.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1647]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1332. Possible FailurePath: [L1041] static int init = 1; [L1042] static SSL_METHOD SSLv3_client_data ; VAL [\old(init)=4294967352, \old(SSLv3_client_data)=null, \old(SSLv3_client_data)=null, init=1, SSLv3_client_data={8:0}] [L1064] SSL *s ; [L1068] s = malloc (sizeof (SSL)) [L1069] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1070] s->ctx = malloc(sizeof(SSL_CTX)) [L1071] s->state = 12292 [L1072] s->version = __VERIFIER_nondet_int() [L1073] CALL ssl3_connect(s) VAL [init=1, s={-3:0}, SSLv3_client_data={8:0}] [L1079] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1080] unsigned long tmp ; [L1081] unsigned long l ; [L1082] long num1 ; [L1083] void (*cb)() ; [L1084] int ret ; [L1085] int new_state ; [L1086] int state ; [L1087] int skip ; [L1088] int *tmp___0 ; [L1089] int tmp___1 = __VERIFIER_nondet_int(); [L1090] int tmp___2 = __VERIFIER_nondet_int(); [L1091] int tmp___3 ; [L1092] int tmp___4 ; [L1093] int tmp___5 ; [L1094] int tmp___6 ; [L1095] int tmp___7 ; [L1096] int tmp___8 ; [L1097] long tmp___9 ; [L1099] int blastFlag ; [L1102] blastFlag = 0 [L1103] s->state = 12292 [L1104] s->hit = __VERIFIER_nondet_int() [L1106] tmp = __VERIFIER_nondet_int() [L1107] cb = (void (*)())((void *)0) [L1108] ret = -1 [L1109] skip = 0 [L1110] tmp___0 = (int*)malloc(sizeof(int)) [L1111] *tmp___0 = 0 [L1112] EXPR s->info_callback VAL [={0:0}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, s->info_callback={0:-4294967295}, skip=0, SSLv3_client_data={8:0}, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0] [L1112] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1113] EXPR s->info_callback [L1113] cb = s->info_callback [L1121] EXPR s->in_handshake [L1121] s->in_handshake += 1 [L1122] COND FALSE !(tmp___1 & 12288) VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0] [L1132] COND TRUE 1 VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0] [L1134] EXPR s->state [L1134] state = s->state [L1135] EXPR s->state VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, s->state=12292, skip=0, SSLv3_client_data={8:0}, state=12292, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0] [L1135] COND TRUE s->state == 12292 [L1238] s->new_session = 1 [L1239] s->state = 4096 [L1240] EXPR s->ctx [L1240] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1240] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1245] s->server = 0 VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=12292, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0] [L1246] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=12292, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0] [L1251] EXPR s->version VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, s->version=-2, skip=0, SSLv3_client_data={8:0}, state=12292, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0] [L1251] COND FALSE !((s->version & 65280) != 768) [L1257] s->type = 4096 [L1258] EXPR s->init_buf VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, s->init_buf={13:-12}, skip=0, SSLv3_client_data={8:0}, state=12292, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0] [L1258] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1270] tmp___4 = __VERIFIER_nondet_int() [L1271] COND FALSE !(! tmp___4) [L1277] tmp___5 = __VERIFIER_nondet_int() [L1278] COND FALSE !(! tmp___5) [L1284] s->state = 4368 [L1285] EXPR s->ctx [L1285] EXPR (s->ctx)->stats.sess_connect [L1285] (s->ctx)->stats.sess_connect += 1 [L1286] s->init_num = 0 VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=12292, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1606] EXPR s->s3 [L1606] EXPR (s->s3)->tmp.reuse_message VAL [={0:-4294967295}, (s->s3)->tmp.reuse_message=4294967307, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, s->s3={-4:0}, skip=0, SSLv3_client_data={8:0}, state=12292, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1606] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1635] skip = 0 VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=12292, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1132] COND TRUE 1 VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=12292, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1134] EXPR s->state [L1134] state = s->state [L1135] EXPR s->state VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, s->state=4368, skip=0, SSLv3_client_data={8:0}, state=4368, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1135] COND FALSE !(s->state == 12292) [L1138] EXPR s->state VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, s->state=4368, skip=0, SSLv3_client_data={8:0}, state=4368, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1138] COND FALSE !(s->state == 16384) [L1141] EXPR s->state VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, s->state=4368, skip=0, SSLv3_client_data={8:0}, state=4368, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1141] COND FALSE !(s->state == 4096) [L1144] EXPR s->state VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, s->state=4368, skip=0, SSLv3_client_data={8:0}, state=4368, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1144] COND FALSE !(s->state == 20480) [L1147] EXPR s->state VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, s->state=4368, skip=0, SSLv3_client_data={8:0}, state=4368, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1147] COND FALSE !(s->state == 4099) [L1150] EXPR s->state VAL [={0:-4294967295}, blastFlag=0, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=-1, s={-3:0}, s={-3:0}, s->state=4368, skip=0, SSLv3_client_data={8:0}, state=4368, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1150] COND TRUE s->state == 4368 [L1290] s->shutdown = 0 [L1291] ret = __VERIFIER_nondet_int() [L1292] COND TRUE blastFlag == 0 [L1293] blastFlag = 1 VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4368, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1297] COND FALSE !(ret <= 0) [L1302] s->state = 4384 [L1303] s->init_num = 0 [L1304] EXPR s->bbio [L1304] EXPR s->wbio VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, s->bbio={17:-14}, s->wbio={-13:15}, skip=0, SSLv3_client_data={8:0}, state=4368, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1304] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1606] EXPR s->s3 [L1606] EXPR (s->s3)->tmp.reuse_message VAL [={0:-4294967295}, (s->s3)->tmp.reuse_message=4294967307, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, s->s3={-4:0}, skip=0, SSLv3_client_data={8:0}, state=4368, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1606] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1635] skip = 0 VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4368, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1132] COND TRUE 1 VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4368, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1134] EXPR s->state [L1134] state = s->state [L1135] EXPR s->state VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, s->state=4384, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1135] COND FALSE !(s->state == 12292) [L1138] EXPR s->state VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, s->state=4384, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1138] COND FALSE !(s->state == 16384) [L1141] EXPR s->state VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, s->state=4384, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1141] COND FALSE !(s->state == 4096) [L1144] EXPR s->state VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, s->state=4384, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1144] COND FALSE !(s->state == 20480) [L1147] EXPR s->state VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, s->state=4384, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1147] COND FALSE !(s->state == 4099) [L1150] EXPR s->state VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, s->state=4384, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1150] COND FALSE !(s->state == 4368) [L1153] EXPR s->state VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, s->state=4384, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1153] COND FALSE !(s->state == 4369) [L1156] EXPR s->state VAL [={0:-4294967295}, blastFlag=1, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=14, s={-3:0}, s={-3:0}, s->state=4384, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1156] COND TRUE s->state == 4384 [L1312] ret = __VERIFIER_nondet_int() [L1313] COND TRUE blastFlag == 1 [L1314] blastFlag = 2 VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1318] COND FALSE !(ret <= 0) [L1323] s->hit VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->hit=0, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1323] COND FALSE !(s->hit) [L1326] s->state = 4400 VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1328] s->init_num = 0 VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1606] EXPR s->s3 [L1606] EXPR (s->s3)->tmp.reuse_message VAL [={0:-4294967295}, (s->s3)->tmp.reuse_message=4294967307, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->s3={-4:0}, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1606] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1635] skip = 0 VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1132] COND TRUE 1 VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4384, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1134] EXPR s->state [L1134] state = s->state [L1135] EXPR s->state VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4400, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1135] COND FALSE !(s->state == 12292) [L1138] EXPR s->state VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4400, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1138] COND FALSE !(s->state == 16384) [L1141] EXPR s->state VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4400, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1141] COND FALSE !(s->state == 4096) [L1144] EXPR s->state VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4400, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1144] COND FALSE !(s->state == 20480) [L1147] EXPR s->state VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4400, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1147] COND FALSE !(s->state == 4099) [L1150] EXPR s->state VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4400, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1150] COND FALSE !(s->state == 4368) [L1153] EXPR s->state VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4400, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1153] COND FALSE !(s->state == 4369) [L1156] EXPR s->state VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4400, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1156] COND FALSE !(s->state == 4384) [L1159] EXPR s->state VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4400, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1159] COND FALSE !(s->state == 4385) [L1162] EXPR s->state VAL [={0:-4294967295}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4400, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1162] COND TRUE s->state == 4400 [L1332] EXPR s->s3 [L1332] EXPR (s->s3)->tmp.new_cipher [L1332] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [={0:-4294967295}, ((s->s3)->tmp.new_cipher)->algorithms=4294967313, (s->s3)->tmp.new_cipher={4294967351:18}, blastFlag=2, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->s3={-4:0}, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1332] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1335] ret = __VERIFIER_nondet_int() [L1336] COND TRUE blastFlag == 2 [L1337] blastFlag = 3 VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1341] COND FALSE !(ret <= 0) VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1347] s->state = 4416 [L1348] s->init_num = 0 VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1606] EXPR s->s3 [L1606] EXPR (s->s3)->tmp.reuse_message VAL [={0:-4294967295}, (s->s3)->tmp.reuse_message=4294967307, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->s3={-4:0}, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1606] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1635] skip = 0 VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1132] COND TRUE 1 VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4400, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1134] EXPR s->state [L1134] state = s->state [L1135] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1135] COND FALSE !(s->state == 12292) [L1138] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1138] COND FALSE !(s->state == 16384) [L1141] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1141] COND FALSE !(s->state == 4096) [L1144] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1144] COND FALSE !(s->state == 20480) [L1147] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1147] COND FALSE !(s->state == 4099) [L1150] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1150] COND FALSE !(s->state == 4368) [L1153] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1153] COND FALSE !(s->state == 4369) [L1156] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1156] COND FALSE !(s->state == 4384) [L1159] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1159] COND FALSE !(s->state == 4385) [L1162] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1162] COND FALSE !(s->state == 4400) [L1165] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1165] COND FALSE !(s->state == 4401) [L1168] EXPR s->state VAL [={0:-4294967295}, blastFlag=3, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4416, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1168] COND TRUE s->state == 4416 [L1352] ret = __VERIFIER_nondet_int() [L1353] COND TRUE blastFlag == 3 [L1354] blastFlag = 4 VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9] [L1358] COND FALSE !(ret <= 0) [L1363] s->state = 4432 [L1364] s->init_num = 0 [L1365] tmp___6 = __VERIFIER_nondet_int() [L1366] COND FALSE !(! tmp___6) VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1606] EXPR s->s3 [L1606] EXPR (s->s3)->tmp.reuse_message VAL [={0:-4294967295}, (s->s3)->tmp.reuse_message=4294967307, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->s3={-4:0}, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1606] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1635] skip = 0 VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1132] COND TRUE 1 VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4416, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1134] EXPR s->state [L1134] state = s->state [L1135] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1135] COND FALSE !(s->state == 12292) [L1138] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1138] COND FALSE !(s->state == 16384) [L1141] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1141] COND FALSE !(s->state == 4096) [L1144] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1144] COND FALSE !(s->state == 20480) [L1147] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1147] COND FALSE !(s->state == 4099) [L1150] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1150] COND FALSE !(s->state == 4368) [L1153] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1153] COND FALSE !(s->state == 4369) [L1156] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1156] COND FALSE !(s->state == 4384) [L1159] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1159] COND FALSE !(s->state == 4385) [L1162] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1162] COND FALSE !(s->state == 4400) [L1165] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1165] COND FALSE !(s->state == 4401) [L1168] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1168] COND FALSE !(s->state == 4416) [L1171] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1171] COND FALSE !(s->state == 4417) [L1174] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4432, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1174] COND TRUE s->state == 4432 [L1375] ret = __VERIFIER_nondet_int() [L1376] COND FALSE !(blastFlag == 5) VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1381] COND FALSE !(ret <= 0) [L1386] s->state = 4448 [L1387] s->init_num = 0 VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1606] EXPR s->s3 [L1606] EXPR (s->s3)->tmp.reuse_message VAL [={0:-4294967295}, (s->s3)->tmp.reuse_message=4294967307, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->s3={-4:0}, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1606] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1635] skip = 0 VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1132] COND TRUE 1 VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4432, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1134] EXPR s->state [L1134] state = s->state [L1135] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1135] COND FALSE !(s->state == 12292) [L1138] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1138] COND FALSE !(s->state == 16384) [L1141] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1141] COND FALSE !(s->state == 4096) [L1144] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1144] COND FALSE !(s->state == 20480) [L1147] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1147] COND FALSE !(s->state == 4099) [L1150] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1150] COND FALSE !(s->state == 4368) [L1153] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1153] COND FALSE !(s->state == 4369) [L1156] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1156] COND FALSE !(s->state == 4384) [L1159] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1159] COND FALSE !(s->state == 4385) [L1162] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1162] COND FALSE !(s->state == 4400) [L1165] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1165] COND FALSE !(s->state == 4401) [L1168] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1168] COND FALSE !(s->state == 4416) [L1171] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1171] COND FALSE !(s->state == 4417) [L1174] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1174] COND FALSE !(s->state == 4432) [L1177] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1177] COND FALSE !(s->state == 4433) [L1180] EXPR s->state VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=1, s={-3:0}, s={-3:0}, s->state=4448, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1180] COND TRUE s->state == 4448 [L1391] ret = __VERIFIER_nondet_int() [L1392] COND TRUE blastFlag == 4 VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=0, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] [L1647] reach_error() VAL [={0:-4294967295}, blastFlag=4, buf={0:-1}, init=1, malloc(sizeof(int))={-6:0}, ret=0, s={-3:0}, s={-3:0}, skip=0, SSLv3_client_data={8:0}, state=4448, tmp=0, tmp___0={-6:0}, tmp___1=0, tmp___2=0, tmp___4=1, tmp___5=-9, tmp___6=-15] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 140 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17456.2ms, OverallIterations: 34, TraceHistogramMax: 7, EmptinessCheckTime: 48.4ms, AutomataDifference: 14178.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7432 SDtfs, 2625 SDslu, 9610 SDs, 0 SdLazy, 13971 SolverSat, 271 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10727.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 246 GetRequests, 100 SyntacticMatches, 20 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1184.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1028occurred in iteration=33, InterpolantAutomatonStates: 163, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 290.6ms AutomataMinimizationTime, 33 MinimizatonAttempts, 2600 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 108.9ms SsaConstructionTime, 457.4ms SatisfiabilityAnalysisTime, 2033.1ms InterpolantComputationTime, 3003 NumberOfCodeBlocks, 3003 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 2827 ConstructedInterpolants, 0 QuantifiedInterpolants, 8550 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 33 PerfectInterpolantSequences, 2610/2610 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...