/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 12:31:32,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 12:31:32,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 12:31:32,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 12:31:32,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 12:31:32,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 12:31:32,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 12:31:32,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 12:31:32,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 12:31:32,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 12:31:32,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 12:31:32,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 12:31:32,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 12:31:32,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 12:31:32,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 12:31:32,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 12:31:32,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 12:31:32,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 12:31:32,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 12:31:32,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 12:31:32,642 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 12:31:32,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 12:31:32,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 12:31:32,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 12:31:32,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 12:31:32,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 12:31:32,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 12:31:32,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 12:31:32,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 12:31:32,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 12:31:32,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-20 12:31:32,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 12:31:32,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 12:31:32,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 12:31:32,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-20 12:31:32,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 12:31:32,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 12:31:32,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 12:31:32,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 12:31:32,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 12:31:32,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 12:31:32,683 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 12:31:32,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 12:31:32,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 12:31:32,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 12:31:32,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 12:31:32,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 12:31:32,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 12:31:32,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 12:31:32,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 12:31:32,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 12:31:32,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 12:31:32,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 12:31:32,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 12:31:32,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:31:32,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 12:31:32,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 12:31:32,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 12:31:32,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 12:31:32,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 12:31:32,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 12:31:32,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-20 12:31:32,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-20 12:31:32,687 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 12:31:32,687 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 12:31:32,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 12:31:32,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 12:31:32,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 12:31:32,895 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 12:31:32,897 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 12:31:32,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-03-20 12:31:32,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5747c04bd/6834c46380c04409b26797b02c275771/FLAG45b60be53 [2022-03-20 12:31:33,324 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 12:31:33,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-03-20 12:31:33,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5747c04bd/6834c46380c04409b26797b02c275771/FLAG45b60be53 [2022-03-20 12:31:33,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5747c04bd/6834c46380c04409b26797b02c275771 [2022-03-20 12:31:33,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 12:31:33,693 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 12:31:33,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 12:31:33,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 12:31:33,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 12:31:33,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:31:33" (1/1) ... [2022-03-20 12:31:33,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba22931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:31:33, skipping insertion in model container [2022-03-20 12:31:33,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:31:33" (1/1) ... [2022-03-20 12:31:33,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 12:31:33,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 12:31:34,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c[77660,77673] [2022-03-20 12:31:34,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:31:34,017 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 12:31:34,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c[77660,77673] [2022-03-20 12:31:34,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:31:34,124 INFO L208 MainTranslator]: Completed translation [2022-03-20 12:31:34,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:31:34 WrapperNode [2022-03-20 12:31:34,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 12:31:34,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 12:31:34,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 12:31:34,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 12:31:34,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:31:34" (1/1) ... [2022-03-20 12:31:34,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:31:34" (1/1) ... [2022-03-20 12:31:34,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:31:34" (1/1) ... [2022-03-20 12:31:34,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:31:34" (1/1) ... [2022-03-20 12:31:34,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:31:34" (1/1) ... [2022-03-20 12:31:34,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:31:34" (1/1) ... [2022-03-20 12:31:34,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:31:34" (1/1) ... [2022-03-20 12:31:34,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 12:31:34,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 12:31:34,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 12:31:34,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 12:31:34,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:31:34" (1/1) ... [2022-03-20 12:31:34,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:31:34,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:31:34,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 12:31:34,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 12:31:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 12:31:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 12:31:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 12:31:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 12:31:34,297 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 12:31:34,297 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 12:31:34,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 12:31:34,297 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 12:31:34,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 12:31:34,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 12:31:34,298 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 12:31:34,298 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 12:31:34,298 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 12:31:34,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 12:31:34,298 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 12:31:34,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 12:31:34,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 12:31:34,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 12:31:34,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 12:31:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 12:31:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 12:31:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 12:31:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 12:31:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 12:31:34,454 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 12:31:34,455 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 12:31:35,368 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 12:31:35,785 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 12:31:35,786 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 12:31:35,820 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 12:31:35,826 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 12:31:35,826 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 12:31:35,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:31:35 BoogieIcfgContainer [2022-03-20 12:31:35,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 12:31:35,828 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 12:31:35,828 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 12:31:35,829 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 12:31:35,831 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:31:35" (1/1) ... [2022-03-20 12:31:35,837 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-03-20 12:31:35,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:31:35 BasicIcfg [2022-03-20 12:31:35,912 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 12:31:35,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 12:31:35,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 12:31:35,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 12:31:35,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 12:31:33" (1/4) ... [2022-03-20 12:31:35,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524f695f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:31:35, skipping insertion in model container [2022-03-20 12:31:35,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:31:34" (2/4) ... [2022-03-20 12:31:35,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524f695f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:31:35, skipping insertion in model container [2022-03-20 12:31:35,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:31:35" (3/4) ... [2022-03-20 12:31:35,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524f695f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 12:31:35, skipping insertion in model container [2022-03-20 12:31:35,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:31:35" (4/4) ... [2022-03-20 12:31:35,927 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-2.cqvasr [2022-03-20 12:31:35,931 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 12:31:35,931 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 12:31:35,984 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 12:31:35,991 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 12:31:35,991 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 12:31:36,007 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 12:31:36,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-20 12:31:36,015 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:31:36,016 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:31:36,016 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:31:36,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:31:36,020 INFO L85 PathProgramCache]: Analyzing trace with hash -359617006, now seen corresponding path program 1 times [2022-03-20 12:31:36,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:31:36,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321520071] [2022-03-20 12:31:36,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:31:36,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:31:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:31:36,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:31:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:31:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:31:36,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:31:36,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321520071] [2022-03-20 12:31:36,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321520071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:31:36,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:31:36,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:31:36,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140675497] [2022-03-20 12:31:36,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:31:36,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:31:36,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:31:36,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:31:36,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:31:36,518 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:39,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:31:41,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:31:42,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:31:42,371 INFO L93 Difference]: Finished difference Result 352 states and 596 transitions. [2022-03-20 12:31:42,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:31:42,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-20 12:31:42,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:31:42,380 INFO L225 Difference]: With dead ends: 352 [2022-03-20 12:31:42,380 INFO L226 Difference]: Without dead ends: 179 [2022-03-20 12:31:42,384 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:31:42,391 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 34 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:31:42,392 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 661 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 12:31:42,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-03-20 12:31:42,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2022-03-20 12:31:42,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5796178343949046) internal successors, (248), 157 states have internal predecessors, (248), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:42,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 252 transitions. [2022-03-20 12:31:42,452 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 252 transitions. Word has length 51 [2022-03-20 12:31:42,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:31:42,453 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 252 transitions. [2022-03-20 12:31:42,453 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:42,453 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 252 transitions. [2022-03-20 12:31:42,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 12:31:42,454 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:31:42,455 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:31:42,455 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 12:31:42,455 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:31:42,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:31:42,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1602858961, now seen corresponding path program 1 times [2022-03-20 12:31:42,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:31:42,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247368869] [2022-03-20 12:31:42,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:31:42,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:31:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:31:42,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:31:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:31:42,657 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:31:42,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:31:42,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247368869] [2022-03-20 12:31:42,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247368869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:31:42,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:31:42,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:31:42,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856552114] [2022-03-20 12:31:42,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:31:42,659 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:31:42,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:31:42,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:31:42,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:31:42,659 INFO L87 Difference]: Start difference. First operand 162 states and 252 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:44,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:31:46,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:31:48,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:31:50,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:31:50,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:31:50,513 INFO L93 Difference]: Finished difference Result 315 states and 487 transitions. [2022-03-20 12:31:50,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:31:50,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 12:31:50,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:31:50,515 INFO L225 Difference]: With dead ends: 315 [2022-03-20 12:31:50,515 INFO L226 Difference]: Without dead ends: 179 [2022-03-20 12:31:50,516 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:31:50,517 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 24 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:31:50,517 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 537 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 379 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-03-20 12:31:50,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-03-20 12:31:50,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2022-03-20 12:31:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5732484076433122) internal successors, (247), 157 states have internal predecessors, (247), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:50,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 251 transitions. [2022-03-20 12:31:50,524 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 251 transitions. Word has length 64 [2022-03-20 12:31:50,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:31:50,524 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 251 transitions. [2022-03-20 12:31:50,524 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:50,524 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 251 transitions. [2022-03-20 12:31:50,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 12:31:50,525 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:31:50,525 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:31:50,525 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 12:31:50,525 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:31:50,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:31:50,526 INFO L85 PathProgramCache]: Analyzing trace with hash -704515848, now seen corresponding path program 1 times [2022-03-20 12:31:50,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:31:50,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317471313] [2022-03-20 12:31:50,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:31:50,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:31:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:31:50,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:31:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:31:50,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:31:50,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:31:50,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317471313] [2022-03-20 12:31:50,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317471313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:31:50,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:31:50,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:31:50,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904226447] [2022-03-20 12:31:50,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:31:50,661 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:31:50,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:31:50,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:31:50,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:31:50,663 INFO L87 Difference]: Start difference. First operand 162 states and 251 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:53,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:31:54,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:31:54,226 INFO L93 Difference]: Finished difference Result 314 states and 485 transitions. [2022-03-20 12:31:54,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:31:54,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 12:31:54,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:31:54,228 INFO L225 Difference]: With dead ends: 314 [2022-03-20 12:31:54,228 INFO L226 Difference]: Without dead ends: 178 [2022-03-20 12:31:54,229 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:31:54,230 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 28 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:31:54,230 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 539 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 12:31:54,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-03-20 12:31:54,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 162. [2022-03-20 12:31:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5668789808917198) internal successors, (246), 157 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:54,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 250 transitions. [2022-03-20 12:31:54,245 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 250 transitions. Word has length 65 [2022-03-20 12:31:54,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:31:54,246 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 250 transitions. [2022-03-20 12:31:54,246 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:54,246 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 250 transitions. [2022-03-20 12:31:54,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 12:31:54,247 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:31:54,247 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:31:54,247 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 12:31:54,248 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:31:54,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:31:54,248 INFO L85 PathProgramCache]: Analyzing trace with hash 257305816, now seen corresponding path program 1 times [2022-03-20 12:31:54,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:31:54,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028540747] [2022-03-20 12:31:54,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:31:54,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:31:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:31:54,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:31:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:31:54,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:31:54,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:31:54,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028540747] [2022-03-20 12:31:54,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028540747] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:31:54,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:31:54,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:31:54,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485150295] [2022-03-20 12:31:54,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:31:54,390 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:31:54,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:31:54,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:31:54,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:31:54,391 INFO L87 Difference]: Start difference. First operand 162 states and 250 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:56,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:31:59,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:31:59,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:31:59,530 INFO L93 Difference]: Finished difference Result 314 states and 484 transitions. [2022-03-20 12:31:59,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:31:59,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 12:31:59,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:31:59,532 INFO L225 Difference]: With dead ends: 314 [2022-03-20 12:31:59,532 INFO L226 Difference]: Without dead ends: 178 [2022-03-20 12:31:59,533 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:31:59,533 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 26 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:31:59,533 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 539 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 378 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 12:31:59,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-03-20 12:31:59,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 162. [2022-03-20 12:31:59,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5605095541401275) internal successors, (245), 157 states have internal predecessors, (245), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:59,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 249 transitions. [2022-03-20 12:31:59,540 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 249 transitions. Word has length 65 [2022-03-20 12:31:59,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:31:59,540 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 249 transitions. [2022-03-20 12:31:59,540 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:31:59,540 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 249 transitions. [2022-03-20 12:31:59,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 12:31:59,541 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:31:59,541 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:31:59,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 12:31:59,541 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:31:59,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:31:59,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1845016728, now seen corresponding path program 1 times [2022-03-20 12:31:59,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:31:59,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251320783] [2022-03-20 12:31:59,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:31:59,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:31:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:31:59,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:31:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:31:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:31:59,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:31:59,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251320783] [2022-03-20 12:31:59,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251320783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:31:59,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:31:59,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:31:59,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994762355] [2022-03-20 12:31:59,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:31:59,632 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:31:59,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:31:59,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:31:59,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:31:59,633 INFO L87 Difference]: Start difference. First operand 162 states and 249 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:00,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:03,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:05,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:06,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:07,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:32:07,277 INFO L93 Difference]: Finished difference Result 424 states and 663 transitions. [2022-03-20 12:32:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:32:07,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 12:32:07,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:32:07,279 INFO L225 Difference]: With dead ends: 424 [2022-03-20 12:32:07,279 INFO L226 Difference]: Without dead ends: 288 [2022-03-20 12:32:07,279 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:32:07,280 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 160 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:32:07,280 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 396 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-03-20 12:32:07,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-03-20 12:32:07,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 179. [2022-03-20 12:32:07,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5632183908045978) internal successors, (272), 174 states have internal predecessors, (272), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:07,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 276 transitions. [2022-03-20 12:32:07,286 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 276 transitions. Word has length 65 [2022-03-20 12:32:07,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:32:07,286 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 276 transitions. [2022-03-20 12:32:07,286 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:07,287 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 276 transitions. [2022-03-20 12:32:07,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 12:32:07,287 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:32:07,287 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:32:07,288 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 12:32:07,288 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:32:07,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:32:07,288 INFO L85 PathProgramCache]: Analyzing trace with hash -87401096, now seen corresponding path program 1 times [2022-03-20 12:32:07,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:32:07,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136137271] [2022-03-20 12:32:07,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:32:07,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:32:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:07,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:32:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:07,379 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:32:07,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:32:07,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136137271] [2022-03-20 12:32:07,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136137271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:32:07,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:32:07,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:32:07,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119949536] [2022-03-20 12:32:07,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:32:07,381 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:32:07,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:07,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:32:07,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:32:07,382 INFO L87 Difference]: Start difference. First operand 179 states and 276 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:09,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:09,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:32:09,806 INFO L93 Difference]: Finished difference Result 345 states and 535 transitions. [2022-03-20 12:32:09,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:32:09,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 12:32:09,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:32:09,808 INFO L225 Difference]: With dead ends: 345 [2022-03-20 12:32:09,808 INFO L226 Difference]: Without dead ends: 192 [2022-03-20 12:32:09,808 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:32:09,809 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 18 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:32:09,809 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 545 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 370 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:32:09,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-03-20 12:32:09,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 179. [2022-03-20 12:32:09,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5574712643678161) internal successors, (271), 174 states have internal predecessors, (271), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 275 transitions. [2022-03-20 12:32:09,814 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 275 transitions. Word has length 65 [2022-03-20 12:32:09,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:32:09,814 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 275 transitions. [2022-03-20 12:32:09,815 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:09,815 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 275 transitions. [2022-03-20 12:32:09,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 12:32:09,821 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:32:09,821 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:32:09,821 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 12:32:09,821 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:32:09,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:32:09,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1229949233, now seen corresponding path program 1 times [2022-03-20 12:32:09,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:32:09,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038877845] [2022-03-20 12:32:09,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:32:09,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:32:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:09,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:32:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:09,956 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:32:09,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:32:09,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038877845] [2022-03-20 12:32:09,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038877845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:32:09,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:32:09,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:32:09,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830044709] [2022-03-20 12:32:09,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:32:09,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:32:09,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:09,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:32:09,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:32:09,958 INFO L87 Difference]: Start difference. First operand 179 states and 275 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:11,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:12,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:32:12,455 INFO L93 Difference]: Finished difference Result 441 states and 688 transitions. [2022-03-20 12:32:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:32:12,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 12:32:12,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:32:12,457 INFO L225 Difference]: With dead ends: 441 [2022-03-20 12:32:12,457 INFO L226 Difference]: Without dead ends: 288 [2022-03-20 12:32:12,457 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:32:12,458 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 163 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:32:12,458 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 396 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:32:12,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-03-20 12:32:12,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 179. [2022-03-20 12:32:12,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5459770114942528) internal successors, (269), 174 states have internal predecessors, (269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:12,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 273 transitions. [2022-03-20 12:32:12,463 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 273 transitions. Word has length 66 [2022-03-20 12:32:12,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:32:12,463 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 273 transitions. [2022-03-20 12:32:12,464 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:12,464 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 273 transitions. [2022-03-20 12:32:12,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 12:32:12,464 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:32:12,464 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:32:12,464 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 12:32:12,465 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:32:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:32:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash -506858700, now seen corresponding path program 1 times [2022-03-20 12:32:12,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:32:12,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93094520] [2022-03-20 12:32:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:32:12,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:32:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:12,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:32:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:32:12,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:32:12,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93094520] [2022-03-20 12:32:12,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93094520] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:32:12,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:32:12,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:32:12,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856682526] [2022-03-20 12:32:12,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:32:12,558 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:32:12,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:12,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:32:12,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:32:12,559 INFO L87 Difference]: Start difference. First operand 179 states and 273 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:13,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:15,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:17,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:19,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:20,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:32:20,093 INFO L93 Difference]: Finished difference Result 345 states and 531 transitions. [2022-03-20 12:32:20,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:32:20,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 12:32:20,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:32:20,094 INFO L225 Difference]: With dead ends: 345 [2022-03-20 12:32:20,094 INFO L226 Difference]: Without dead ends: 192 [2022-03-20 12:32:20,094 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:32:20,095 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 20 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:32:20,095 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-03-20 12:32:20,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-03-20 12:32:20,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 179. [2022-03-20 12:32:20,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5402298850574712) internal successors, (268), 174 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:20,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 272 transitions. [2022-03-20 12:32:20,099 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 272 transitions. Word has length 67 [2022-03-20 12:32:20,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:32:20,099 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 272 transitions. [2022-03-20 12:32:20,099 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:20,099 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 272 transitions. [2022-03-20 12:32:20,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 12:32:20,100 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:32:20,100 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:32:20,100 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 12:32:20,100 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:32:20,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:32:20,100 INFO L85 PathProgramCache]: Analyzing trace with hash -952112884, now seen corresponding path program 1 times [2022-03-20 12:32:20,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:32:20,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825730136] [2022-03-20 12:32:20,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:32:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:32:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:32:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:20,204 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:32:20,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:32:20,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825730136] [2022-03-20 12:32:20,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825730136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:32:20,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:32:20,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:32:20,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508739663] [2022-03-20 12:32:20,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:32:20,205 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:32:20,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:20,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:32:20,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:32:20,205 INFO L87 Difference]: Start difference. First operand 179 states and 272 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:23,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:25,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:25,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:32:25,786 INFO L93 Difference]: Finished difference Result 335 states and 517 transitions. [2022-03-20 12:32:25,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:32:25,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 12:32:25,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:32:25,787 INFO L225 Difference]: With dead ends: 335 [2022-03-20 12:32:25,787 INFO L226 Difference]: Without dead ends: 182 [2022-03-20 12:32:25,788 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:32:25,788 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 11 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:32:25,788 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 559 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 358 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 12:32:25,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-03-20 12:32:25,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 179. [2022-03-20 12:32:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5344827586206897) internal successors, (267), 174 states have internal predecessors, (267), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:25,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 271 transitions. [2022-03-20 12:32:25,792 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 271 transitions. Word has length 68 [2022-03-20 12:32:25,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:32:25,792 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 271 transitions. [2022-03-20 12:32:25,792 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:25,792 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 271 transitions. [2022-03-20 12:32:25,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 12:32:25,793 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:32:25,793 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:32:25,793 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 12:32:25,793 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:32:25,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:32:25,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1316823101, now seen corresponding path program 1 times [2022-03-20 12:32:25,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:32:25,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053318327] [2022-03-20 12:32:25,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:32:25,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:32:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:32:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:32:25,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:32:25,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053318327] [2022-03-20 12:32:25,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053318327] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:32:25,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:32:25,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:32:25,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979336849] [2022-03-20 12:32:25,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:32:25,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:32:25,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:25,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:32:25,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:32:25,936 INFO L87 Difference]: Start difference. First operand 179 states and 271 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:27,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:29,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:31,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:33,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:32:33,172 INFO L93 Difference]: Finished difference Result 459 states and 711 transitions. [2022-03-20 12:32:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:32:33,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 12:32:33,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:32:33,175 INFO L225 Difference]: With dead ends: 459 [2022-03-20 12:32:33,175 INFO L226 Difference]: Without dead ends: 306 [2022-03-20 12:32:33,176 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:32:33,176 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 137 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:32:33,176 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 398 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-03-20 12:32:33,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-03-20 12:32:33,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 219. [2022-03-20 12:32:33,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5794392523364487) internal successors, (338), 214 states have internal predecessors, (338), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:33,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 342 transitions. [2022-03-20 12:32:33,181 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 342 transitions. Word has length 68 [2022-03-20 12:32:33,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:32:33,181 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 342 transitions. [2022-03-20 12:32:33,181 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:33,181 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 342 transitions. [2022-03-20 12:32:33,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 12:32:33,182 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:32:33,182 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:32:33,182 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 12:32:33,182 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:32:33,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:32:33,183 INFO L85 PathProgramCache]: Analyzing trace with hash 381885929, now seen corresponding path program 1 times [2022-03-20 12:32:33,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:32:33,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251282729] [2022-03-20 12:32:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:32:33,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:32:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:33,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:32:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:32:33,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:32:33,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251282729] [2022-03-20 12:32:33,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251282729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:32:33,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:32:33,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:32:33,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052201985] [2022-03-20 12:32:33,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:32:33,286 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:32:33,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:33,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:32:33,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:32:33,286 INFO L87 Difference]: Start difference. First operand 219 states and 342 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:35,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:35,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:32:35,660 INFO L93 Difference]: Finished difference Result 455 states and 718 transitions. [2022-03-20 12:32:35,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:32:35,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-20 12:32:35,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:32:35,662 INFO L225 Difference]: With dead ends: 455 [2022-03-20 12:32:35,662 INFO L226 Difference]: Without dead ends: 262 [2022-03-20 12:32:35,662 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:32:35,663 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 32 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:32:35,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 557 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 412 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:32:35,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-20 12:32:35,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 241. [2022-03-20 12:32:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.5847457627118644) internal successors, (374), 236 states have internal predecessors, (374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:35,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 378 transitions. [2022-03-20 12:32:35,668 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 378 transitions. Word has length 69 [2022-03-20 12:32:35,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:32:35,669 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 378 transitions. [2022-03-20 12:32:35,669 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:35,669 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 378 transitions. [2022-03-20 12:32:35,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 12:32:35,669 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:32:35,669 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:32:35,669 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 12:32:35,670 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:32:35,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:32:35,670 INFO L85 PathProgramCache]: Analyzing trace with hash -402147550, now seen corresponding path program 1 times [2022-03-20 12:32:35,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:32:35,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973676239] [2022-03-20 12:32:35,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:32:35,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:32:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:35,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:32:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:35,768 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:32:35,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:32:35,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973676239] [2022-03-20 12:32:35,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973676239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:32:35,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:32:35,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:32:35,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026059547] [2022-03-20 12:32:35,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:32:35,769 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:32:35,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:35,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:32:35,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:32:35,770 INFO L87 Difference]: Start difference. First operand 241 states and 378 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:38,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:40,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:41,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:32:41,280 INFO L93 Difference]: Finished difference Result 475 states and 751 transitions. [2022-03-20 12:32:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:32:41,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 12:32:41,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:32:41,281 INFO L225 Difference]: With dead ends: 475 [2022-03-20 12:32:41,282 INFO L226 Difference]: Without dead ends: 260 [2022-03-20 12:32:41,282 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:32:41,282 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 37 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:32:41,283 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 561 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 409 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 12:32:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-20 12:32:41,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 241. [2022-03-20 12:32:41,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.5805084745762712) internal successors, (373), 236 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:41,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 377 transitions. [2022-03-20 12:32:41,287 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 377 transitions. Word has length 82 [2022-03-20 12:32:41,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:32:41,288 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 377 transitions. [2022-03-20 12:32:41,288 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:41,288 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 377 transitions. [2022-03-20 12:32:41,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 12:32:41,288 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:32:41,288 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:32:41,289 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 12:32:41,289 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:32:41,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:32:41,289 INFO L85 PathProgramCache]: Analyzing trace with hash 515503875, now seen corresponding path program 1 times [2022-03-20 12:32:41,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:32:41,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385672104] [2022-03-20 12:32:41,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:32:41,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:32:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:41,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:32:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:41,416 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:32:41,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:32:41,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385672104] [2022-03-20 12:32:41,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385672104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:32:41,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:32:41,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:32:41,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434872015] [2022-03-20 12:32:41,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:32:41,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:32:41,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:32:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:32:41,418 INFO L87 Difference]: Start difference. First operand 241 states and 377 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:43,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:44,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:46,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:32:46,186 INFO L93 Difference]: Finished difference Result 485 states and 766 transitions. [2022-03-20 12:32:46,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:32:46,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-20 12:32:46,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:32:46,187 INFO L225 Difference]: With dead ends: 485 [2022-03-20 12:32:46,188 INFO L226 Difference]: Without dead ends: 270 [2022-03-20 12:32:46,188 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:32:46,188 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 21 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:32:46,189 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 626 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 12:32:46,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-03-20 12:32:46,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 257. [2022-03-20 12:32:46,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5793650793650793) internal successors, (398), 252 states have internal predecessors, (398), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:46,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 402 transitions. [2022-03-20 12:32:46,193 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 402 transitions. Word has length 83 [2022-03-20 12:32:46,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:32:46,193 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 402 transitions. [2022-03-20 12:32:46,194 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:46,194 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 402 transitions. [2022-03-20 12:32:46,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 12:32:46,194 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:32:46,194 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:32:46,194 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 12:32:46,194 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:32:46,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:32:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1828775293, now seen corresponding path program 1 times [2022-03-20 12:32:46,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:32:46,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453519442] [2022-03-20 12:32:46,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:32:46,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:32:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:46,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:32:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:32:46,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:32:46,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453519442] [2022-03-20 12:32:46,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453519442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:32:46,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:32:46,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:32:46,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678513686] [2022-03-20 12:32:46,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:32:46,270 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:32:46,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:46,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:32:46,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:32:46,271 INFO L87 Difference]: Start difference. First operand 257 states and 402 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:47,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:49,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:50,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:52,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:52,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:32:52,579 INFO L93 Difference]: Finished difference Result 506 states and 798 transitions. [2022-03-20 12:32:52,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:32:52,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-20 12:32:52,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:32:52,580 INFO L225 Difference]: With dead ends: 506 [2022-03-20 12:32:52,580 INFO L226 Difference]: Without dead ends: 275 [2022-03-20 12:32:52,581 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:32:52,581 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 34 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:32:52,581 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 563 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 408 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 12:32:52,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-20 12:32:52,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 257. [2022-03-20 12:32:52,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5753968253968254) internal successors, (397), 252 states have internal predecessors, (397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:52,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 401 transitions. [2022-03-20 12:32:52,586 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 401 transitions. Word has length 83 [2022-03-20 12:32:52,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:32:52,586 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 401 transitions. [2022-03-20 12:32:52,586 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:52,586 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 401 transitions. [2022-03-20 12:32:52,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:32:52,587 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:32:52,587 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:32:52,587 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 12:32:52,587 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:32:52,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:32:52,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1697462397, now seen corresponding path program 1 times [2022-03-20 12:32:52,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:32:52,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600402590] [2022-03-20 12:32:52,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:32:52,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:32:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:52,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:32:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 12:32:52,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:32:52,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600402590] [2022-03-20 12:32:52,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600402590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:32:52,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:32:52,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 12:32:52,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821398960] [2022-03-20 12:32:52,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:32:52,696 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 12:32:52,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:52,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 12:32:52,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:32:52,696 INFO L87 Difference]: Start difference. First operand 257 states and 401 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:55,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:56,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:32:57,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:32:57,791 INFO L93 Difference]: Finished difference Result 497 states and 784 transitions. [2022-03-20 12:32:57,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 12:32:57,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 12:32:57,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:32:57,792 INFO L225 Difference]: With dead ends: 497 [2022-03-20 12:32:57,792 INFO L226 Difference]: Without dead ends: 266 [2022-03-20 12:32:57,793 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 12:32:57,793 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 3 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:32:57,793 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 705 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 12:32:57,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-20 12:32:57,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-03-20 12:32:57,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.5632183908045978) internal successors, (408), 261 states have internal predecessors, (408), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:57,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 412 transitions. [2022-03-20 12:32:57,798 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 412 transitions. Word has length 84 [2022-03-20 12:32:57,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:32:57,798 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 412 transitions. [2022-03-20 12:32:57,798 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:57,798 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 412 transitions. [2022-03-20 12:32:57,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:32:57,799 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:32:57,799 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:32:57,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 12:32:57,799 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:32:57,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:32:57,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1704854435, now seen corresponding path program 1 times [2022-03-20 12:32:57,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:32:57,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767837287] [2022-03-20 12:32:57,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:32:57,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:32:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:57,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:32:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:32:57,885 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:32:57,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:32:57,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767837287] [2022-03-20 12:32:57,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767837287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:32:57,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:32:57,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:32:57,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201407892] [2022-03-20 12:32:57,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:32:57,886 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:32:57,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:57,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:32:57,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:32:57,886 INFO L87 Difference]: Start difference. First operand 266 states and 412 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:32:59,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:00,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:33:00,263 INFO L93 Difference]: Finished difference Result 533 states and 829 transitions. [2022-03-20 12:33:00,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:33:00,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 12:33:00,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:33:00,264 INFO L225 Difference]: With dead ends: 533 [2022-03-20 12:33:00,264 INFO L226 Difference]: Without dead ends: 293 [2022-03-20 12:33:00,265 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:33:00,265 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 39 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:33:00,265 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 563 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:33:00,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-03-20 12:33:00,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 266. [2022-03-20 12:33:00,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.5593869731800767) internal successors, (407), 261 states have internal predecessors, (407), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:00,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 411 transitions. [2022-03-20 12:33:00,270 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 411 transitions. Word has length 84 [2022-03-20 12:33:00,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:33:00,270 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 411 transitions. [2022-03-20 12:33:00,270 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:00,271 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 411 transitions. [2022-03-20 12:33:00,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-20 12:33:00,271 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:33:00,271 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:33:00,271 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 12:33:00,271 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:33:00,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:33:00,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1916846855, now seen corresponding path program 1 times [2022-03-20 12:33:00,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:33:00,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683646] [2022-03-20 12:33:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:33:00,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:33:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:00,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:33:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:33:00,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:33:00,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683646] [2022-03-20 12:33:00,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:33:00,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:33:00,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:33:00,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676350119] [2022-03-20 12:33:00,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:33:00,369 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:33:00,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:33:00,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:33:00,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:33:00,370 INFO L87 Difference]: Start difference. First operand 266 states and 411 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:03,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:05,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:33:06,392 INFO L93 Difference]: Finished difference Result 624 states and 974 transitions. [2022-03-20 12:33:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:33:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-20 12:33:06,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:33:06,393 INFO L225 Difference]: With dead ends: 624 [2022-03-20 12:33:06,393 INFO L226 Difference]: Without dead ends: 384 [2022-03-20 12:33:06,394 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:33:06,394 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 162 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:33:06,394 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 398 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 494 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 12:33:06,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-03-20 12:33:06,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 266. [2022-03-20 12:33:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.5440613026819923) internal successors, (403), 261 states have internal predecessors, (403), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:06,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 407 transitions. [2022-03-20 12:33:06,399 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 407 transitions. Word has length 86 [2022-03-20 12:33:06,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:33:06,400 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 407 transitions. [2022-03-20 12:33:06,400 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:06,400 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 407 transitions. [2022-03-20 12:33:06,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 12:33:06,400 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:33:06,400 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:33:06,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 12:33:06,401 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:33:06,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:33:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash 397807451, now seen corresponding path program 1 times [2022-03-20 12:33:06,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:33:06,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069793612] [2022-03-20 12:33:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:33:06,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:33:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:06,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:33:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:06,478 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:33:06,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:33:06,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069793612] [2022-03-20 12:33:06,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069793612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:33:06,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:33:06,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:33:06,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536564428] [2022-03-20 12:33:06,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:33:06,479 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:33:06,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:33:06,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:33:06,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:33:06,480 INFO L87 Difference]: Start difference. First operand 266 states and 407 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:08,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:09,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:11,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:13,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:13,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:33:13,720 INFO L93 Difference]: Finished difference Result 624 states and 966 transitions. [2022-03-20 12:33:13,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:33:13,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-20 12:33:13,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:33:13,722 INFO L225 Difference]: With dead ends: 624 [2022-03-20 12:33:13,722 INFO L226 Difference]: Without dead ends: 384 [2022-03-20 12:33:13,722 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:33:13,723 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 160 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:33:13,723 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 398 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-03-20 12:33:13,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-03-20 12:33:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 266. [2022-03-20 12:33:13,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.528735632183908) internal successors, (399), 261 states have internal predecessors, (399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 403 transitions. [2022-03-20 12:33:13,728 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 403 transitions. Word has length 87 [2022-03-20 12:33:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:33:13,728 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 403 transitions. [2022-03-20 12:33:13,728 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 403 transitions. [2022-03-20 12:33:13,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-20 12:33:13,729 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:33:13,729 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:33:13,729 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 12:33:13,729 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:33:13,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:33:13,729 INFO L85 PathProgramCache]: Analyzing trace with hash -903497846, now seen corresponding path program 1 times [2022-03-20 12:33:13,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:33:13,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715763104] [2022-03-20 12:33:13,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:33:13,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:33:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:13,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:33:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:33:13,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:33:13,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715763104] [2022-03-20 12:33:13,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715763104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:33:13,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:33:13,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:33:13,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712101218] [2022-03-20 12:33:13,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:33:13,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:33:13,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:33:13,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:33:13,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:33:13,818 INFO L87 Difference]: Start difference. First operand 266 states and 403 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:14,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:16,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:18,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:20,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:33:20,317 INFO L93 Difference]: Finished difference Result 620 states and 948 transitions. [2022-03-20 12:33:20,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:33:20,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-20 12:33:20,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:33:20,318 INFO L225 Difference]: With dead ends: 620 [2022-03-20 12:33:20,318 INFO L226 Difference]: Without dead ends: 380 [2022-03-20 12:33:20,319 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:33:20,319 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 92 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:33:20,319 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 553 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 557 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-20 12:33:20,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-03-20 12:33:20,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 308. [2022-03-20 12:33:20,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 303 states have (on average 1.551155115511551) internal successors, (470), 303 states have internal predecessors, (470), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:20,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 474 transitions. [2022-03-20 12:33:20,324 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 474 transitions. Word has length 91 [2022-03-20 12:33:20,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:33:20,325 INFO L478 AbstractCegarLoop]: Abstraction has 308 states and 474 transitions. [2022-03-20 12:33:20,325 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:20,325 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 474 transitions. [2022-03-20 12:33:20,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-20 12:33:20,325 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:33:20,326 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:33:20,326 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 12:33:20,326 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:33:20,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:33:20,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1352194485, now seen corresponding path program 1 times [2022-03-20 12:33:20,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:33:20,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531726295] [2022-03-20 12:33:20,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:33:20,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:33:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:20,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:33:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:20,417 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:33:20,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:33:20,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531726295] [2022-03-20 12:33:20,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531726295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:33:20,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:33:20,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:33:20,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574665322] [2022-03-20 12:33:20,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:33:20,418 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:33:20,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:33:20,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:33:20,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:33:20,418 INFO L87 Difference]: Start difference. First operand 308 states and 474 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:23,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:24,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:26,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:26,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:33:26,955 INFO L93 Difference]: Finished difference Result 649 states and 1002 transitions. [2022-03-20 12:33:26,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:33:26,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-20 12:33:26,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:33:26,957 INFO L225 Difference]: With dead ends: 649 [2022-03-20 12:33:26,957 INFO L226 Difference]: Without dead ends: 367 [2022-03-20 12:33:26,958 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:33:26,958 INFO L913 BasicCegarLoop]: 265 mSDtfsCounter, 38 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:33:26,958 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 661 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-20 12:33:26,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-03-20 12:33:26,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 332. [2022-03-20 12:33:26,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 327 states have (on average 1.5535168195718654) internal successors, (508), 327 states have internal predecessors, (508), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:26,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 512 transitions. [2022-03-20 12:33:26,963 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 512 transitions. Word has length 91 [2022-03-20 12:33:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:33:26,964 INFO L478 AbstractCegarLoop]: Abstraction has 332 states and 512 transitions. [2022-03-20 12:33:26,964 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:26,964 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 512 transitions. [2022-03-20 12:33:26,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-20 12:33:26,964 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:33:26,965 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:33:26,965 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 12:33:26,965 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:33:26,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:33:26,965 INFO L85 PathProgramCache]: Analyzing trace with hash -264243128, now seen corresponding path program 1 times [2022-03-20 12:33:26,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:33:26,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243828084] [2022-03-20 12:33:26,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:33:26,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:33:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:27,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:33:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:33:27,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:33:27,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243828084] [2022-03-20 12:33:27,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243828084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:33:27,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:33:27,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:33:27,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548166482] [2022-03-20 12:33:27,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:33:27,070 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:33:27,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:33:27,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:33:27,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:33:27,070 INFO L87 Difference]: Start difference. First operand 332 states and 512 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:28,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:29,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:31,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:33,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:34,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:33:34,142 INFO L93 Difference]: Finished difference Result 645 states and 1004 transitions. [2022-03-20 12:33:34,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:33:34,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-03-20 12:33:34,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:33:34,143 INFO L225 Difference]: With dead ends: 645 [2022-03-20 12:33:34,143 INFO L226 Difference]: Without dead ends: 339 [2022-03-20 12:33:34,144 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:33:34,144 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 30 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:33:34,144 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 579 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 391 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-20 12:33:34,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-20 12:33:34,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 332. [2022-03-20 12:33:34,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 327 states have (on average 1.5504587155963303) internal successors, (507), 327 states have internal predecessors, (507), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:34,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 511 transitions. [2022-03-20 12:33:34,150 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 511 transitions. Word has length 96 [2022-03-20 12:33:34,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:33:34,150 INFO L478 AbstractCegarLoop]: Abstraction has 332 states and 511 transitions. [2022-03-20 12:33:34,150 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:34,150 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 511 transitions. [2022-03-20 12:33:34,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 12:33:34,151 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:33:34,151 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:33:34,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 12:33:34,151 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:33:34,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:33:34,151 INFO L85 PathProgramCache]: Analyzing trace with hash -572421343, now seen corresponding path program 1 times [2022-03-20 12:33:34,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:33:34,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489135152] [2022-03-20 12:33:34,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:33:34,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:33:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:34,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:33:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:34,256 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:33:34,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:33:34,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489135152] [2022-03-20 12:33:34,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489135152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:33:34,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:33:34,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:33:34,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717327090] [2022-03-20 12:33:34,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:33:34,257 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:33:34,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:33:34,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:33:34,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:33:34,257 INFO L87 Difference]: Start difference. First operand 332 states and 511 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:35,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:36,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:38,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:40,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:40,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:33:40,987 INFO L93 Difference]: Finished difference Result 754 states and 1172 transitions. [2022-03-20 12:33:40,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:33:40,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 12:33:40,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:33:40,989 INFO L225 Difference]: With dead ends: 754 [2022-03-20 12:33:40,989 INFO L226 Difference]: Without dead ends: 448 [2022-03-20 12:33:40,990 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:33:40,990 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 158 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:33:40,990 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 402 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-20 12:33:40,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-03-20 12:33:40,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 332. [2022-03-20 12:33:40,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 327 states have (on average 1.5382262996941896) internal successors, (503), 327 states have internal predecessors, (503), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:40,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 507 transitions. [2022-03-20 12:33:40,996 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 507 transitions. Word has length 104 [2022-03-20 12:33:40,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:33:40,996 INFO L478 AbstractCegarLoop]: Abstraction has 332 states and 507 transitions. [2022-03-20 12:33:40,996 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:40,996 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 507 transitions. [2022-03-20 12:33:40,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-03-20 12:33:40,997 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:33:40,997 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:33:40,997 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 12:33:40,997 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:33:40,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:33:40,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1482671716, now seen corresponding path program 1 times [2022-03-20 12:33:40,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:33:40,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186180022] [2022-03-20 12:33:40,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:33:40,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:33:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:41,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:33:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:41,096 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:33:41,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:33:41,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186180022] [2022-03-20 12:33:41,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186180022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:33:41,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:33:41,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:33:41,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95847320] [2022-03-20 12:33:41,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:33:41,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:33:41,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:33:41,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:33:41,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:33:41,097 INFO L87 Difference]: Start difference. First operand 332 states and 507 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:42,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:44,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:46,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:47,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:33:47,122 INFO L93 Difference]: Finished difference Result 755 states and 1165 transitions. [2022-03-20 12:33:47,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:33:47,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2022-03-20 12:33:47,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:33:47,123 INFO L225 Difference]: With dead ends: 755 [2022-03-20 12:33:47,123 INFO L226 Difference]: Without dead ends: 449 [2022-03-20 12:33:47,124 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:33:47,124 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 156 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:33:47,124 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 400 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 12:33:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-03-20 12:33:47,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 333. [2022-03-20 12:33:47,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.5274390243902438) internal successors, (501), 328 states have internal predecessors, (501), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:47,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 505 transitions. [2022-03-20 12:33:47,131 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 505 transitions. Word has length 105 [2022-03-20 12:33:47,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:33:47,131 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 505 transitions. [2022-03-20 12:33:47,131 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:47,131 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 505 transitions. [2022-03-20 12:33:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-20 12:33:47,132 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:33:47,132 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:33:47,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 12:33:47,132 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:33:47,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:33:47,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2129212260, now seen corresponding path program 1 times [2022-03-20 12:33:47,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:33:47,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938500923] [2022-03-20 12:33:47,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:33:47,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:33:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:47,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:33:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:33:47,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:33:47,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938500923] [2022-03-20 12:33:47,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938500923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:33:47,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:33:47,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:33:47,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237709248] [2022-03-20 12:33:47,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:33:47,227 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:33:47,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:33:47,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:33:47,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:33:47,228 INFO L87 Difference]: Start difference. First operand 333 states and 505 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:49,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:49,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:33:49,648 INFO L93 Difference]: Finished difference Result 699 states and 1064 transitions. [2022-03-20 12:33:49,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:33:49,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 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 [2022-03-20 12:33:49,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:33:49,650 INFO L225 Difference]: With dead ends: 699 [2022-03-20 12:33:49,650 INFO L226 Difference]: Without dead ends: 392 [2022-03-20 12:33:49,650 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:33:49,651 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 116 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:33:49,651 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 521 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:33:49,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-03-20 12:33:49,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 333. [2022-03-20 12:33:49,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.524390243902439) internal successors, (500), 328 states have internal predecessors, (500), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:49,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 504 transitions. [2022-03-20 12:33:49,656 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 504 transitions. Word has length 106 [2022-03-20 12:33:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:33:49,656 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 504 transitions. [2022-03-20 12:33:49,656 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:49,656 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 504 transitions. [2022-03-20 12:33:49,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-20 12:33:49,657 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:33:49,657 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:33:49,657 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 12:33:49,657 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:33:49,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:33:49,658 INFO L85 PathProgramCache]: Analyzing trace with hash 235135931, now seen corresponding path program 1 times [2022-03-20 12:33:49,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:33:49,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703262880] [2022-03-20 12:33:49,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:33:49,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:33:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:49,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:33:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:49,753 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:33:49,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:33:49,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703262880] [2022-03-20 12:33:49,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703262880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:33:49,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:33:49,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:33:49,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089444989] [2022-03-20 12:33:49,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:33:49,754 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:33:49,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:33:49,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:33:49,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:33:49,754 INFO L87 Difference]: Start difference. First operand 333 states and 504 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:51,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:52,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:33:52,121 INFO L93 Difference]: Finished difference Result 662 states and 1007 transitions. [2022-03-20 12:33:52,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:33:52,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 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 [2022-03-20 12:33:52,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:33:52,123 INFO L225 Difference]: With dead ends: 662 [2022-03-20 12:33:52,123 INFO L226 Difference]: Without dead ends: 355 [2022-03-20 12:33:52,124 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:33:52,124 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 46 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:33:52,125 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 655 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:33:52,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-20 12:33:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 333. [2022-03-20 12:33:52,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.521341463414634) internal successors, (499), 328 states have internal predecessors, (499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:52,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 503 transitions. [2022-03-20 12:33:52,129 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 503 transitions. Word has length 106 [2022-03-20 12:33:52,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:33:52,130 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 503 transitions. [2022-03-20 12:33:52,130 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:52,130 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 503 transitions. [2022-03-20 12:33:52,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-20 12:33:52,131 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:33:52,131 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:33:52,131 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 12:33:52,131 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:33:52,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:33:52,131 INFO L85 PathProgramCache]: Analyzing trace with hash -397396756, now seen corresponding path program 1 times [2022-03-20 12:33:52,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:33:52,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644440369] [2022-03-20 12:33:52,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:33:52,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:33:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:52,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:33:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:33:52,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:33:52,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644440369] [2022-03-20 12:33:52,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644440369] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:33:52,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:33:52,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:33:52,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307786016] [2022-03-20 12:33:52,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:33:52,225 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:33:52,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:33:52,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:33:52,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:33:52,226 INFO L87 Difference]: Start difference. First operand 333 states and 503 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:53,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:55,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:57,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:57,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:33:57,784 INFO L93 Difference]: Finished difference Result 699 states and 1060 transitions. [2022-03-20 12:33:57,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:33:57,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-20 12:33:57,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:33:57,786 INFO L225 Difference]: With dead ends: 699 [2022-03-20 12:33:57,786 INFO L226 Difference]: Without dead ends: 392 [2022-03-20 12:33:57,787 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:33:57,787 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 103 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:33:57,787 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 537 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 536 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 12:33:57,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-03-20 12:33:57,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 333. [2022-03-20 12:33:57,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.5182926829268293) internal successors, (498), 328 states have internal predecessors, (498), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:57,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 502 transitions. [2022-03-20 12:33:57,792 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 502 transitions. Word has length 113 [2022-03-20 12:33:57,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:33:57,792 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 502 transitions. [2022-03-20 12:33:57,793 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:57,793 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 502 transitions. [2022-03-20 12:33:57,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-20 12:33:57,793 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:33:57,793 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:33:57,793 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 12:33:57,794 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:33:57,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:33:57,794 INFO L85 PathProgramCache]: Analyzing trace with hash 906996973, now seen corresponding path program 1 times [2022-03-20 12:33:57,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:33:57,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224927052] [2022-03-20 12:33:57,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:33:57,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:33:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:57,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:33:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:33:57,898 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 12:33:57,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:33:57,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224927052] [2022-03-20 12:33:57,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224927052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:33:57,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:33:57,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:33:57,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038791523] [2022-03-20 12:33:57,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:33:57,898 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:33:57,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:33:57,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:33:57,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:33:57,899 INFO L87 Difference]: Start difference. First operand 333 states and 502 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:00,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:02,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:02,372 INFO L93 Difference]: Finished difference Result 944 states and 1444 transitions. [2022-03-20 12:34:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:34:02,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-20 12:34:02,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:02,397 INFO L225 Difference]: With dead ends: 944 [2022-03-20 12:34:02,397 INFO L226 Difference]: Without dead ends: 637 [2022-03-20 12:34:02,398 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:34:02,398 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:02,399 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 450 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 334 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 12:34:02,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-03-20 12:34:02,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2022-03-20 12:34:02,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 632 states have (on average 1.5015822784810127) internal successors, (949), 632 states have internal predecessors, (949), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 953 transitions. [2022-03-20 12:34:02,411 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 953 transitions. Word has length 113 [2022-03-20 12:34:02,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:02,411 INFO L478 AbstractCegarLoop]: Abstraction has 637 states and 953 transitions. [2022-03-20 12:34:02,412 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:02,412 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 953 transitions. [2022-03-20 12:34:02,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-20 12:34:02,413 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:02,413 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:02,413 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 12:34:02,413 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:02,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:02,413 INFO L85 PathProgramCache]: Analyzing trace with hash 298920110, now seen corresponding path program 1 times [2022-03-20 12:34:02,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:02,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323275238] [2022-03-20 12:34:02,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:02,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:02,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:02,488 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 12:34:02,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:02,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323275238] [2022-03-20 12:34:02,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323275238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:02,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:02,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:34:02,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245994450] [2022-03-20 12:34:02,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:02,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:34:02,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:02,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:34:02,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:34:02,489 INFO L87 Difference]: Start difference. First operand 637 states and 953 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:04,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:04,754 INFO L93 Difference]: Finished difference Result 1275 states and 1913 transitions. [2022-03-20 12:34:04,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:34:04,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-20 12:34:04,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:04,756 INFO L225 Difference]: With dead ends: 1275 [2022-03-20 12:34:04,756 INFO L226 Difference]: Without dead ends: 664 [2022-03-20 12:34:04,757 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:34:04,757 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:04,757 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 435 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 12:34:04,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-03-20 12:34:04,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 664. [2022-03-20 12:34:04,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 659 states have (on average 1.4931714719271623) internal successors, (984), 659 states have internal predecessors, (984), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:04,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 988 transitions. [2022-03-20 12:34:04,766 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 988 transitions. Word has length 113 [2022-03-20 12:34:04,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:04,766 INFO L478 AbstractCegarLoop]: Abstraction has 664 states and 988 transitions. [2022-03-20 12:34:04,766 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:04,766 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 988 transitions. [2022-03-20 12:34:04,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-20 12:34:04,767 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:04,767 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:04,768 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 12:34:04,768 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:04,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:04,768 INFO L85 PathProgramCache]: Analyzing trace with hash -2141701649, now seen corresponding path program 1 times [2022-03-20 12:34:04,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:04,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112338870] [2022-03-20 12:34:04,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:04,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:04,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-03-20 12:34:04,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:04,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112338870] [2022-03-20 12:34:04,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112338870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:04,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:04,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:34:04,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108620740] [2022-03-20 12:34:04,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:04,846 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:34:04,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:04,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:34:04,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:34:04,846 INFO L87 Difference]: Start difference. First operand 664 states and 988 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:06,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:08,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:09,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:09,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:09,845 INFO L93 Difference]: Finished difference Result 1304 states and 1949 transitions. [2022-03-20 12:34:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:34:09,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-20 12:34:09,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:09,847 INFO L225 Difference]: With dead ends: 1304 [2022-03-20 12:34:09,847 INFO L226 Difference]: Without dead ends: 666 [2022-03-20 12:34:09,848 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:34:09,848 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:09,849 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 414 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 271 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 12:34:09,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-03-20 12:34:09,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2022-03-20 12:34:09,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 661 states have (on average 1.491679273827534) internal successors, (986), 661 states have internal predecessors, (986), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:09,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 990 transitions. [2022-03-20 12:34:09,857 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 990 transitions. Word has length 113 [2022-03-20 12:34:09,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:09,857 INFO L478 AbstractCegarLoop]: Abstraction has 666 states and 990 transitions. [2022-03-20 12:34:09,857 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:09,857 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 990 transitions. [2022-03-20 12:34:09,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-20 12:34:09,858 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:09,859 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:09,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 12:34:09,859 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:09,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:09,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2097889140, now seen corresponding path program 1 times [2022-03-20 12:34:09,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:09,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630596365] [2022-03-20 12:34:09,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:09,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:09,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:34:09,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:09,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630596365] [2022-03-20 12:34:09,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630596365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:09,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:09,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:34:09,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750583133] [2022-03-20 12:34:09,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:09,940 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:34:09,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:09,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:34:09,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:34:09,941 INFO L87 Difference]: Start difference. First operand 666 states and 990 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:12,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:13,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:13,394 INFO L93 Difference]: Finished difference Result 1608 states and 2418 transitions. [2022-03-20 12:34:13,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:34:13,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-03-20 12:34:13,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:13,402 INFO L225 Difference]: With dead ends: 1608 [2022-03-20 12:34:13,402 INFO L226 Difference]: Without dead ends: 970 [2022-03-20 12:34:13,404 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:34:13,404 INFO L913 BasicCegarLoop]: 401 mSDtfsCounter, 151 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:13,404 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 595 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 12:34:13,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-03-20 12:34:13,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2022-03-20 12:34:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 965 states have (on average 1.489119170984456) internal successors, (1437), 965 states have internal predecessors, (1437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:13,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1441 transitions. [2022-03-20 12:34:13,426 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1441 transitions. Word has length 115 [2022-03-20 12:34:13,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:13,426 INFO L478 AbstractCegarLoop]: Abstraction has 970 states and 1441 transitions. [2022-03-20 12:34:13,427 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:13,427 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1441 transitions. [2022-03-20 12:34:13,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 12:34:13,428 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:13,428 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:13,428 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 12:34:13,428 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:13,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash 270251946, now seen corresponding path program 1 times [2022-03-20 12:34:13,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:13,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706746323] [2022-03-20 12:34:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:13,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:13,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:13,542 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 12:34:13,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:13,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706746323] [2022-03-20 12:34:13,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706746323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:13,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:13,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:34:13,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484999201] [2022-03-20 12:34:13,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:13,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:34:13,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:13,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:34:13,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:34:13,543 INFO L87 Difference]: Start difference. First operand 970 states and 1441 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:14,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:16,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:18,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:19,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:19,420 INFO L93 Difference]: Finished difference Result 2255 states and 3352 transitions. [2022-03-20 12:34:19,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:34:19,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-20 12:34:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:19,424 INFO L225 Difference]: With dead ends: 2255 [2022-03-20 12:34:19,424 INFO L226 Difference]: Without dead ends: 1313 [2022-03-20 12:34:19,425 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:34:19,426 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 133 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:19,426 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 426 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 12:34:19,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-03-20 12:34:19,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 988. [2022-03-20 12:34:19,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 983 states have (on average 1.5015259409969481) internal successors, (1476), 983 states have internal predecessors, (1476), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:19,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1480 transitions. [2022-03-20 12:34:19,440 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1480 transitions. Word has length 144 [2022-03-20 12:34:19,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:19,440 INFO L478 AbstractCegarLoop]: Abstraction has 988 states and 1480 transitions. [2022-03-20 12:34:19,440 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:19,441 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1480 transitions. [2022-03-20 12:34:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-20 12:34:19,442 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:19,442 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:19,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 12:34:19,442 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:19,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:19,443 INFO L85 PathProgramCache]: Analyzing trace with hash -282931265, now seen corresponding path program 1 times [2022-03-20 12:34:19,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:19,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167276296] [2022-03-20 12:34:19,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:19,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:19,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:19,555 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-03-20 12:34:19,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:19,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167276296] [2022-03-20 12:34:19,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167276296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:19,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:19,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:34:19,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765552782] [2022-03-20 12:34:19,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:19,556 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:34:19,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:19,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:34:19,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:34:19,556 INFO L87 Difference]: Start difference. First operand 988 states and 1480 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:21,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:23,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:24,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:24,420 INFO L93 Difference]: Finished difference Result 2158 states and 3231 transitions. [2022-03-20 12:34:24,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:34:24,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-20 12:34:24,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:24,424 INFO L225 Difference]: With dead ends: 2158 [2022-03-20 12:34:24,424 INFO L226 Difference]: Without dead ends: 1198 [2022-03-20 12:34:24,425 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:34:24,425 INFO L913 BasicCegarLoop]: 271 mSDtfsCounter, 50 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:24,425 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 673 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 538 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-20 12:34:24,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-03-20 12:34:24,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1072. [2022-03-20 12:34:24,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.507029053420806) internal successors, (1608), 1067 states have internal predecessors, (1608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:24,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1612 transitions. [2022-03-20 12:34:24,440 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1612 transitions. Word has length 172 [2022-03-20 12:34:24,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:24,441 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1612 transitions. [2022-03-20 12:34:24,441 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:24,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1612 transitions. [2022-03-20 12:34:24,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-03-20 12:34:24,442 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:24,443 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:24,443 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 12:34:24,443 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:24,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:24,443 INFO L85 PathProgramCache]: Analyzing trace with hash -288026223, now seen corresponding path program 1 times [2022-03-20 12:34:24,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:24,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143491569] [2022-03-20 12:34:24,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:24,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:24,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-03-20 12:34:24,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:24,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143491569] [2022-03-20 12:34:24,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143491569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:24,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:24,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:34:24,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44778962] [2022-03-20 12:34:24,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:24,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:34:24,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:24,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:34:24,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:34:24,590 INFO L87 Difference]: Start difference. First operand 1072 states and 1612 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:27,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:29,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:29,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:29,794 INFO L93 Difference]: Finished difference Result 2212 states and 3321 transitions. [2022-03-20 12:34:29,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:34:29,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 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 187 [2022-03-20 12:34:29,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:29,797 INFO L225 Difference]: With dead ends: 2212 [2022-03-20 12:34:29,797 INFO L226 Difference]: Without dead ends: 1168 [2022-03-20 12:34:29,798 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:34:29,798 INFO L913 BasicCegarLoop]: 270 mSDtfsCounter, 64 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:29,799 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 671 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 12:34:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2022-03-20 12:34:29,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1072. [2022-03-20 12:34:29,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.5042174320524837) internal successors, (1605), 1067 states have internal predecessors, (1605), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:29,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1609 transitions. [2022-03-20 12:34:29,814 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1609 transitions. Word has length 187 [2022-03-20 12:34:29,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:29,814 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1609 transitions. [2022-03-20 12:34:29,814 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:29,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1609 transitions. [2022-03-20 12:34:29,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-03-20 12:34:29,816 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:29,816 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:29,816 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 12:34:29,816 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:29,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:29,817 INFO L85 PathProgramCache]: Analyzing trace with hash 926805537, now seen corresponding path program 1 times [2022-03-20 12:34:29,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:29,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101120488] [2022-03-20 12:34:29,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:29,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:29,923 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-03-20 12:34:29,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:29,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101120488] [2022-03-20 12:34:29,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101120488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:29,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:29,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:34:29,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389114470] [2022-03-20 12:34:29,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:29,924 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:34:29,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:29,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:34:29,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:34:29,924 INFO L87 Difference]: Start difference. First operand 1072 states and 1609 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:31,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:33,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:35,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:36,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:36,354 INFO L93 Difference]: Finished difference Result 2212 states and 3315 transitions. [2022-03-20 12:34:36,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:34:36,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 194 [2022-03-20 12:34:36,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:36,358 INFO L225 Difference]: With dead ends: 2212 [2022-03-20 12:34:36,358 INFO L226 Difference]: Without dead ends: 1168 [2022-03-20 12:34:36,359 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:34:36,359 INFO L913 BasicCegarLoop]: 269 mSDtfsCounter, 53 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:36,359 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 669 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-20 12:34:36,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2022-03-20 12:34:36,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1072. [2022-03-20 12:34:36,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.5014058106841612) internal successors, (1602), 1067 states have internal predecessors, (1602), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:36,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1606 transitions. [2022-03-20 12:34:36,373 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1606 transitions. Word has length 194 [2022-03-20 12:34:36,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:36,373 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1606 transitions. [2022-03-20 12:34:36,373 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:36,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1606 transitions. [2022-03-20 12:34:36,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-03-20 12:34:36,375 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:36,375 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:36,375 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 12:34:36,375 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:36,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:36,376 INFO L85 PathProgramCache]: Analyzing trace with hash -396595679, now seen corresponding path program 1 times [2022-03-20 12:34:36,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:36,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085261009] [2022-03-20 12:34:36,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:36,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:36,486 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-03-20 12:34:36,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:36,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085261009] [2022-03-20 12:34:36,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085261009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:36,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:36,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:34:36,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239232831] [2022-03-20 12:34:36,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:36,487 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:34:36,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:36,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:34:36,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:34:36,488 INFO L87 Difference]: Start difference. First operand 1072 states and 1606 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:38,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:41,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:41,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:41,508 INFO L93 Difference]: Finished difference Result 2212 states and 3309 transitions. [2022-03-20 12:34:41,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:34:41,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 194 [2022-03-20 12:34:41,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:41,511 INFO L225 Difference]: With dead ends: 2212 [2022-03-20 12:34:41,511 INFO L226 Difference]: Without dead ends: 1168 [2022-03-20 12:34:41,513 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:34:41,513 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 50 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:41,513 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 667 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 12:34:41,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2022-03-20 12:34:41,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1072. [2022-03-20 12:34:41,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.4985941893158388) internal successors, (1599), 1067 states have internal predecessors, (1599), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:41,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1603 transitions. [2022-03-20 12:34:41,544 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1603 transitions. Word has length 194 [2022-03-20 12:34:41,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:41,544 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1603 transitions. [2022-03-20 12:34:41,544 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:41,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1603 transitions. [2022-03-20 12:34:41,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-20 12:34:41,546 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:41,547 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:41,547 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 12:34:41,547 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:41,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:41,547 INFO L85 PathProgramCache]: Analyzing trace with hash 575362303, now seen corresponding path program 1 times [2022-03-20 12:34:41,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:41,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771608307] [2022-03-20 12:34:41,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:41,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:41,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:41,654 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-03-20 12:34:41,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:41,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771608307] [2022-03-20 12:34:41,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771608307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:41,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:41,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:34:41,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123775101] [2022-03-20 12:34:41,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:41,655 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:34:41,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:41,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:34:41,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:34:41,655 INFO L87 Difference]: Start difference. First operand 1072 states and 1603 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:42,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:44,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:46,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:46,657 INFO L93 Difference]: Finished difference Result 2393 states and 3544 transitions. [2022-03-20 12:34:46,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:34:46,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2022-03-20 12:34:46,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:46,661 INFO L225 Difference]: With dead ends: 2393 [2022-03-20 12:34:46,661 INFO L226 Difference]: Without dead ends: 1349 [2022-03-20 12:34:46,662 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:34:46,662 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 149 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:46,662 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 426 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 12:34:46,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2022-03-20 12:34:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1072. [2022-03-20 12:34:46,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.4845360824742269) internal successors, (1584), 1067 states have internal predecessors, (1584), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:46,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1588 transitions. [2022-03-20 12:34:46,676 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1588 transitions. Word has length 195 [2022-03-20 12:34:46,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:46,677 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1588 transitions. [2022-03-20 12:34:46,677 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:46,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1588 transitions. [2022-03-20 12:34:46,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-20 12:34:46,678 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:46,679 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:46,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 12:34:46,679 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:46,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:46,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1430990526, now seen corresponding path program 1 times [2022-03-20 12:34:46,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:46,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895511863] [2022-03-20 12:34:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:46,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:46,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:46,802 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-03-20 12:34:46,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:46,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895511863] [2022-03-20 12:34:46,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895511863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:46,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:46,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:34:46,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453048496] [2022-03-20 12:34:46,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:46,804 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:34:46,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:46,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:34:46,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:34:46,805 INFO L87 Difference]: Start difference. First operand 1072 states and 1588 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:48,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:50,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:52,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:53,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:53,321 INFO L93 Difference]: Finished difference Result 2186 states and 3239 transitions. [2022-03-20 12:34:53,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:34:53,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2022-03-20 12:34:53,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:53,324 INFO L225 Difference]: With dead ends: 2186 [2022-03-20 12:34:53,324 INFO L226 Difference]: Without dead ends: 1142 [2022-03-20 12:34:53,325 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:34:53,326 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 37 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:53,326 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 647 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 499 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-20 12:34:53,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-03-20 12:34:53,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1072. [2022-03-20 12:34:53,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.4817244611059044) internal successors, (1581), 1067 states have internal predecessors, (1581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:53,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1585 transitions. [2022-03-20 12:34:53,339 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1585 transitions. Word has length 195 [2022-03-20 12:34:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:53,339 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1585 transitions. [2022-03-20 12:34:53,339 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:53,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1585 transitions. [2022-03-20 12:34:53,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-20 12:34:53,341 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:53,341 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:53,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 12:34:53,341 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:53,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:53,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1397878705, now seen corresponding path program 1 times [2022-03-20 12:34:53,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:53,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368757485] [2022-03-20 12:34:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:53,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:53,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:53,468 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-03-20 12:34:53,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:53,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368757485] [2022-03-20 12:34:53,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368757485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:53,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:53,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:34:53,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636841871] [2022-03-20 12:34:53,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:53,468 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:34:53,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:53,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:34:53,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:34:53,469 INFO L87 Difference]: Start difference. First operand 1072 states and 1585 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:55,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:56,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:56,015 INFO L93 Difference]: Finished difference Result 2454 states and 3656 transitions. [2022-03-20 12:34:56,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:34:56,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-20 12:34:56,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:56,019 INFO L225 Difference]: With dead ends: 2454 [2022-03-20 12:34:56,019 INFO L226 Difference]: Without dead ends: 1410 [2022-03-20 12:34:56,020 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:34:56,020 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:56,020 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 597 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:34:56,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-03-20 12:34:56,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1410. [2022-03-20 12:34:56,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1405 states have (on average 1.480427046263345) internal successors, (2080), 1405 states have internal predecessors, (2080), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:56,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2084 transitions. [2022-03-20 12:34:56,038 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2084 transitions. Word has length 197 [2022-03-20 12:34:56,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:56,039 INFO L478 AbstractCegarLoop]: Abstraction has 1410 states and 2084 transitions. [2022-03-20 12:34:56,039 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:56,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2084 transitions. [2022-03-20 12:34:56,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-20 12:34:56,041 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:56,041 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:56,041 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 12:34:56,041 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:56,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:56,041 INFO L85 PathProgramCache]: Analyzing trace with hash 711480470, now seen corresponding path program 1 times [2022-03-20 12:34:56,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:56,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783726185] [2022-03-20 12:34:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:56,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:56,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:56,165 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-03-20 12:34:56,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:56,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783726185] [2022-03-20 12:34:56,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783726185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:56,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:56,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:34:56,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981085047] [2022-03-20 12:34:56,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:56,166 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:34:56,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:56,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:34:56,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:34:56,167 INFO L87 Difference]: Start difference. First operand 1410 states and 2084 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:58,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:00,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:00,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:00,359 INFO L93 Difference]: Finished difference Result 3131 states and 4655 transitions. [2022-03-20 12:35:00,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:00,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-03-20 12:35:00,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:00,364 INFO L225 Difference]: With dead ends: 3131 [2022-03-20 12:35:00,364 INFO L226 Difference]: Without dead ends: 1749 [2022-03-20 12:35:00,366 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:00,366 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:00,366 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 390 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 12:35:00,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2022-03-20 12:35:00,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1749. [2022-03-20 12:35:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1744 states have (on average 1.4827981651376148) internal successors, (2586), 1744 states have internal predecessors, (2586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:00,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2590 transitions. [2022-03-20 12:35:00,391 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2590 transitions. Word has length 203 [2022-03-20 12:35:00,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:00,391 INFO L478 AbstractCegarLoop]: Abstraction has 1749 states and 2590 transitions. [2022-03-20 12:35:00,391 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:00,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2590 transitions. [2022-03-20 12:35:00,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 12:35:00,394 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:00,394 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:00,394 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 12:35:00,394 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:00,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:00,395 INFO L85 PathProgramCache]: Analyzing trace with hash 269903284, now seen corresponding path program 1 times [2022-03-20 12:35:00,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:00,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339763602] [2022-03-20 12:35:00,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:00,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:00,532 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-03-20 12:35:00,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:00,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339763602] [2022-03-20 12:35:00,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339763602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:00,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:00,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:35:00,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352602801] [2022-03-20 12:35:00,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:00,533 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:00,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:00,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:00,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:00,534 INFO L87 Difference]: Start difference. First operand 1749 states and 2590 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:02,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:04,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:05,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:05,171 INFO L93 Difference]: Finished difference Result 3809 states and 5667 transitions. [2022-03-20 12:35:05,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:05,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-20 12:35:05,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:05,176 INFO L225 Difference]: With dead ends: 3809 [2022-03-20 12:35:05,176 INFO L226 Difference]: Without dead ends: 2088 [2022-03-20 12:35:05,178 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:05,178 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 160 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:05,178 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 389 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 12:35:05,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2022-03-20 12:35:05,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2088. [2022-03-20 12:35:05,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 2083 states have (on average 1.484877580412866) internal successors, (3093), 2083 states have internal predecessors, (3093), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:05,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3097 transitions. [2022-03-20 12:35:05,206 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3097 transitions. Word has length 235 [2022-03-20 12:35:05,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:05,206 INFO L478 AbstractCegarLoop]: Abstraction has 2088 states and 3097 transitions. [2022-03-20 12:35:05,206 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:05,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3097 transitions. [2022-03-20 12:35:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-03-20 12:35:05,209 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:05,209 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:05,209 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 12:35:05,209 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:05,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:05,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1760536661, now seen corresponding path program 1 times [2022-03-20 12:35:05,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:05,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454047122] [2022-03-20 12:35:05,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:05,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:05,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-03-20 12:35:05,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:05,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454047122] [2022-03-20 12:35:05,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454047122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:05,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:05,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:35:05,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717050273] [2022-03-20 12:35:05,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:05,323 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:05,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:05,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:05,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:05,324 INFO L87 Difference]: Start difference. First operand 2088 states and 3097 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:08,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:08,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:08,471 INFO L93 Difference]: Finished difference Result 4487 states and 6681 transitions. [2022-03-20 12:35:08,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:08,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 237 [2022-03-20 12:35:08,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:08,476 INFO L225 Difference]: With dead ends: 4487 [2022-03-20 12:35:08,476 INFO L226 Difference]: Without dead ends: 2427 [2022-03-20 12:35:08,478 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:08,479 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:08,479 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 388 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 12:35:08,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2022-03-20 12:35:08,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 2427. [2022-03-20 12:35:08,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2422 states have (on average 1.4867877786952932) internal successors, (3601), 2422 states have internal predecessors, (3601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:08,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3605 transitions. [2022-03-20 12:35:08,512 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3605 transitions. Word has length 237 [2022-03-20 12:35:08,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:08,512 INFO L478 AbstractCegarLoop]: Abstraction has 2427 states and 3605 transitions. [2022-03-20 12:35:08,512 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:08,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3605 transitions. [2022-03-20 12:35:08,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-03-20 12:35:08,515 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:08,515 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:08,517 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 12:35:08,518 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:08,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:08,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1865311039, now seen corresponding path program 1 times [2022-03-20 12:35:08,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:08,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285281219] [2022-03-20 12:35:08,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:08,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:08,654 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-20 12:35:08,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:08,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285281219] [2022-03-20 12:35:08,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285281219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:08,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:08,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:35:08,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616992993] [2022-03-20 12:35:08,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:08,655 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:35:08,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:08,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:35:08,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:35:08,656 INFO L87 Difference]: Start difference. First operand 2427 states and 3605 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:10,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:11,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:11,140 INFO L93 Difference]: Finished difference Result 6002 states and 8936 transitions. [2022-03-20 12:35:11,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:35:11,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 270 [2022-03-20 12:35:11,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:11,147 INFO L225 Difference]: With dead ends: 6002 [2022-03-20 12:35:11,147 INFO L226 Difference]: Without dead ends: 3603 [2022-03-20 12:35:11,150 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:35:11,151 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 138 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:11,151 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 414 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:35:11,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3603 states. [2022-03-20 12:35:11,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3603 to 2875. [2022-03-20 12:35:11,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2870 states have (on average 1.5034843205574913) internal successors, (4315), 2870 states have internal predecessors, (4315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:11,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 4319 transitions. [2022-03-20 12:35:11,201 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 4319 transitions. Word has length 270 [2022-03-20 12:35:11,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:11,201 INFO L478 AbstractCegarLoop]: Abstraction has 2875 states and 4319 transitions. [2022-03-20 12:35:11,201 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 4319 transitions. [2022-03-20 12:35:11,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-03-20 12:35:11,205 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:11,205 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:11,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 12:35:11,206 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:11,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:11,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1277534805, now seen corresponding path program 1 times [2022-03-20 12:35:11,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:11,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340144248] [2022-03-20 12:35:11,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:11,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-03-20 12:35:11,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:11,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340144248] [2022-03-20 12:35:11,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340144248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:11,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:11,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:35:11,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865826030] [2022-03-20 12:35:11,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:11,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:11,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:11,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:11,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:11,366 INFO L87 Difference]: Start difference. First operand 2875 states and 4319 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:13,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:13,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:13,839 INFO L93 Difference]: Finished difference Result 6118 states and 9216 transitions. [2022-03-20 12:35:13,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:13,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 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 276 [2022-03-20 12:35:13,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:13,844 INFO L225 Difference]: With dead ends: 6118 [2022-03-20 12:35:13,844 INFO L226 Difference]: Without dead ends: 3271 [2022-03-20 12:35:13,848 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:13,848 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:13,848 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 594 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:35:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2022-03-20 12:35:13,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3271. [2022-03-20 12:35:13,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 3266 states have (on average 1.5030618493570116) internal successors, (4909), 3266 states have internal predecessors, (4909), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:13,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 4913 transitions. [2022-03-20 12:35:13,895 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 4913 transitions. Word has length 276 [2022-03-20 12:35:13,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:13,895 INFO L478 AbstractCegarLoop]: Abstraction has 3271 states and 4913 transitions. [2022-03-20 12:35:13,895 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:13,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 4913 transitions. [2022-03-20 12:35:13,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-03-20 12:35:13,911 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:13,911 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:13,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 12:35:13,912 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:13,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:13,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1401608052, now seen corresponding path program 1 times [2022-03-20 12:35:13,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:13,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789253630] [2022-03-20 12:35:13,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:13,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:14,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-20 12:35:14,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:14,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789253630] [2022-03-20 12:35:14,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789253630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:14,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:14,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:35:14,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123827626] [2022-03-20 12:35:14,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:14,031 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:14,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:14,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:14,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:14,032 INFO L87 Difference]: Start difference. First operand 3271 states and 4913 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:15,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:18,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:18,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:18,635 INFO L93 Difference]: Finished difference Result 6884 states and 10363 transitions. [2022-03-20 12:35:18,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:18,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 276 [2022-03-20 12:35:18,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:18,640 INFO L225 Difference]: With dead ends: 6884 [2022-03-20 12:35:18,643 INFO L226 Difference]: Without dead ends: 3641 [2022-03-20 12:35:18,662 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:18,663 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:18,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 12:35:18,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3641 states. [2022-03-20 12:35:18,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3641 to 3641. [2022-03-20 12:35:18,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3641 states, 3636 states have (on average 1.5013751375137514) internal successors, (5459), 3636 states have internal predecessors, (5459), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:18,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3641 states to 3641 states and 5463 transitions. [2022-03-20 12:35:18,710 INFO L78 Accepts]: Start accepts. Automaton has 3641 states and 5463 transitions. Word has length 276 [2022-03-20 12:35:18,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:18,711 INFO L478 AbstractCegarLoop]: Abstraction has 3641 states and 5463 transitions. [2022-03-20 12:35:18,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:18,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3641 states and 5463 transitions. [2022-03-20 12:35:18,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-03-20 12:35:18,716 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:18,717 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:18,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 12:35:18,717 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:18,717 INFO L85 PathProgramCache]: Analyzing trace with hash 958317031, now seen corresponding path program 1 times [2022-03-20 12:35:18,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:18,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677626674] [2022-03-20 12:35:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:18,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:18,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:18,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2022-03-20 12:35:18,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:18,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677626674] [2022-03-20 12:35:18,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677626674] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:18,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:18,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:35:18,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017619795] [2022-03-20 12:35:18,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:18,909 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:18,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:18,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:18,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:18,910 INFO L87 Difference]: Start difference. First operand 3641 states and 5463 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:22,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:22,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:22,316 INFO L93 Difference]: Finished difference Result 7657 states and 11515 transitions. [2022-03-20 12:35:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:22,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 350 [2022-03-20 12:35:22,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:22,322 INFO L225 Difference]: With dead ends: 7657 [2022-03-20 12:35:22,322 INFO L226 Difference]: Without dead ends: 4044 [2022-03-20 12:35:22,327 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:22,327 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:22,327 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 385 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 12:35:22,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2022-03-20 12:35:22,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 4044. [2022-03-20 12:35:22,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4044 states, 4039 states have (on average 1.503342411487992) internal successors, (6072), 4039 states have internal predecessors, (6072), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:22,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4044 states to 4044 states and 6076 transitions. [2022-03-20 12:35:22,383 INFO L78 Accepts]: Start accepts. Automaton has 4044 states and 6076 transitions. Word has length 350 [2022-03-20 12:35:22,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:22,383 INFO L478 AbstractCegarLoop]: Abstraction has 4044 states and 6076 transitions. [2022-03-20 12:35:22,384 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:22,384 INFO L276 IsEmpty]: Start isEmpty. Operand 4044 states and 6076 transitions. [2022-03-20 12:35:22,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-03-20 12:35:22,389 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:22,389 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:22,389 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 12:35:22,389 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:22,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:22,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1649358797, now seen corresponding path program 1 times [2022-03-20 12:35:22,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:22,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129303368] [2022-03-20 12:35:22,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:22,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:22,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 941 trivial. 0 not checked. [2022-03-20 12:35:22,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:22,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129303368] [2022-03-20 12:35:22,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129303368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:22,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:22,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:35:22,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606745290] [2022-03-20 12:35:22,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:22,568 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:22,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:22,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:22,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:22,569 INFO L87 Difference]: Start difference. First operand 4044 states and 6076 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:24,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:24,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:24,926 INFO L93 Difference]: Finished difference Result 8463 states and 12741 transitions. [2022-03-20 12:35:24,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:24,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 391 [2022-03-20 12:35:24,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:24,935 INFO L225 Difference]: With dead ends: 8463 [2022-03-20 12:35:24,935 INFO L226 Difference]: Without dead ends: 4447 [2022-03-20 12:35:24,938 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:24,939 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:24,939 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 384 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 288 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:35:24,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4447 states. [2022-03-20 12:35:24,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4447 to 4447. [2022-03-20 12:35:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4447 states, 4442 states have (on average 1.505177847816299) internal successors, (6686), 4442 states have internal predecessors, (6686), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:24,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4447 states to 4447 states and 6690 transitions. [2022-03-20 12:35:24,998 INFO L78 Accepts]: Start accepts. Automaton has 4447 states and 6690 transitions. Word has length 391 [2022-03-20 12:35:24,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:24,999 INFO L478 AbstractCegarLoop]: Abstraction has 4447 states and 6690 transitions. [2022-03-20 12:35:24,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:24,999 INFO L276 IsEmpty]: Start isEmpty. Operand 4447 states and 6690 transitions. [2022-03-20 12:35:25,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-03-20 12:35:25,005 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:25,005 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:25,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 12:35:25,006 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:25,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:25,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1935497870, now seen corresponding path program 1 times [2022-03-20 12:35:25,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:25,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696105643] [2022-03-20 12:35:25,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:25,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-03-20 12:35:25,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:25,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696105643] [2022-03-20 12:35:25,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696105643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:25,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:25,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:35:25,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083752253] [2022-03-20 12:35:25,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:25,216 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:25,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:25,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:25,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:25,216 INFO L87 Difference]: Start difference. First operand 4447 states and 6690 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:28,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:29,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:29,423 INFO L93 Difference]: Finished difference Result 9263 states and 13960 transitions. [2022-03-20 12:35:29,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:29,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 399 [2022-03-20 12:35:29,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:29,430 INFO L225 Difference]: With dead ends: 9263 [2022-03-20 12:35:29,431 INFO L226 Difference]: Without dead ends: 4844 [2022-03-20 12:35:29,436 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:29,436 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:29,436 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 12:35:29,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2022-03-20 12:35:29,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4844. [2022-03-20 12:35:29,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4844 states, 4839 states have (on average 1.504649721016739) internal successors, (7281), 4839 states have internal predecessors, (7281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:29,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 7285 transitions. [2022-03-20 12:35:29,513 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 7285 transitions. Word has length 399 [2022-03-20 12:35:29,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:29,513 INFO L478 AbstractCegarLoop]: Abstraction has 4844 states and 7285 transitions. [2022-03-20 12:35:29,514 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:29,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 7285 transitions. [2022-03-20 12:35:29,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-03-20 12:35:29,521 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:29,521 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:29,521 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 12:35:29,522 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:29,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:29,522 INFO L85 PathProgramCache]: Analyzing trace with hash 677976328, now seen corresponding path program 1 times [2022-03-20 12:35:29,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:29,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133608010] [2022-03-20 12:35:29,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:29,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:29,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:29,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2114 backedges. 637 proven. 0 refuted. 0 times theorem prover too weak. 1477 trivial. 0 not checked. [2022-03-20 12:35:29,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:29,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133608010] [2022-03-20 12:35:29,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133608010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:29,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:29,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:35:29,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896384812] [2022-03-20 12:35:29,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:29,736 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:29,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:29,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:29,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:29,737 INFO L87 Difference]: Start difference. First operand 4844 states and 7285 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:30,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:32,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:34,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:35,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:35,177 INFO L93 Difference]: Finished difference Result 10063 states and 15159 transitions. [2022-03-20 12:35:35,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:35,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 474 [2022-03-20 12:35:35,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:35,185 INFO L225 Difference]: With dead ends: 10063 [2022-03-20 12:35:35,185 INFO L226 Difference]: Without dead ends: 5247 [2022-03-20 12:35:35,193 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:35,199 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:35,199 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 382 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 12:35:35,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5247 states. [2022-03-20 12:35:35,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5247 to 5247. [2022-03-20 12:35:35,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5242 states have (on average 1.5064860740175505) internal successors, (7897), 5242 states have internal predecessors, (7897), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:35,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 7901 transitions. [2022-03-20 12:35:35,282 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 7901 transitions. Word has length 474 [2022-03-20 12:35:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:35,283 INFO L478 AbstractCegarLoop]: Abstraction has 5247 states and 7901 transitions. [2022-03-20 12:35:35,283 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 7901 transitions. [2022-03-20 12:35:35,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-03-20 12:35:35,291 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:35,291 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:35,291 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 12:35:35,291 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:35,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:35,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1647815905, now seen corresponding path program 1 times [2022-03-20 12:35:35,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:35,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763407415] [2022-03-20 12:35:35,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:35,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:35,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2506 backedges. 741 proven. 9 refuted. 0 times theorem prover too weak. 1756 trivial. 0 not checked. [2022-03-20 12:35:35,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:35,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763407415] [2022-03-20 12:35:35,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763407415] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:35:35,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778736532] [2022-03-20 12:35:35,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:35,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:35:35,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:35:35,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:35:35,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 12:35:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:36,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 2444 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-20 12:35:36,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:35:37,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2506 backedges. 702 proven. 0 refuted. 0 times theorem prover too weak. 1804 trivial. 0 not checked. [2022-03-20 12:35:37,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 12:35:37,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778736532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:37,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 12:35:37,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-20 12:35:37,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699866605] [2022-03-20 12:35:37,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:37,173 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 12:35:37,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:37,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 12:35:37,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 12:35:37,174 INFO L87 Difference]: Start difference. First operand 5247 states and 7901 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:37,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:37,284 INFO L93 Difference]: Finished difference Result 10869 states and 16391 transitions. [2022-03-20 12:35:37,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 12:35:37,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 516 [2022-03-20 12:35:37,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:37,291 INFO L225 Difference]: With dead ends: 10869 [2022-03-20 12:35:37,291 INFO L226 Difference]: Without dead ends: 5650 [2022-03-20 12:35:37,297 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 12:35:37,297 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:37,297 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 384 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 12:35:37,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5650 states. [2022-03-20 12:35:37,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5650 to 5650. [2022-03-20 12:35:37,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5650 states, 5645 states have (on average 1.508237378210806) internal successors, (8514), 5645 states have internal predecessors, (8514), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:37,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5650 states to 5650 states and 8518 transitions. [2022-03-20 12:35:37,407 INFO L78 Accepts]: Start accepts. Automaton has 5650 states and 8518 transitions. Word has length 516 [2022-03-20 12:35:37,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:37,408 INFO L478 AbstractCegarLoop]: Abstraction has 5650 states and 8518 transitions. [2022-03-20 12:35:37,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:37,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5650 states and 8518 transitions. [2022-03-20 12:35:37,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-03-20 12:35:37,415 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:37,416 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:37,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 12:35:37,623 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-03-20 12:35:37,624 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:37,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:37,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1218320683, now seen corresponding path program 1 times [2022-03-20 12:35:37,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:37,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904932484] [2022-03-20 12:35:37,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:37,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:37,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-03-20 12:35:37,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:37,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904932484] [2022-03-20 12:35:37,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904932484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:37,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:37,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:35:37,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64027084] [2022-03-20 12:35:37,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:37,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:35:37,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:37,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:35:37,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:35:37,869 INFO L87 Difference]: Start difference. First operand 5650 states and 8518 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:39,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:41,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:43,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:43,345 INFO L93 Difference]: Finished difference Result 12755 states and 19132 transitions. [2022-03-20 12:35:43,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:35:43,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-03-20 12:35:43,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:43,354 INFO L225 Difference]: With dead ends: 12755 [2022-03-20 12:35:43,354 INFO L226 Difference]: Without dead ends: 7133 [2022-03-20 12:35:43,361 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:35:43,361 INFO L913 BasicCegarLoop]: 303 mSDtfsCounter, 85 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:43,361 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 737 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 645 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 12:35:43,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7133 states. [2022-03-20 12:35:43,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7133 to 6224. [2022-03-20 12:35:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6224 states, 6219 states have (on average 1.517607332368548) internal successors, (9438), 6219 states have internal predecessors, (9438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:43,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6224 states to 6224 states and 9442 transitions. [2022-03-20 12:35:43,478 INFO L78 Accepts]: Start accepts. Automaton has 6224 states and 9442 transitions. Word has length 525 [2022-03-20 12:35:43,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:43,479 INFO L478 AbstractCegarLoop]: Abstraction has 6224 states and 9442 transitions. [2022-03-20 12:35:43,479 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:43,479 INFO L276 IsEmpty]: Start isEmpty. Operand 6224 states and 9442 transitions. [2022-03-20 12:35:43,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-03-20 12:35:43,487 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:43,487 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:43,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 12:35:43,487 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:43,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:43,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1646733805, now seen corresponding path program 1 times [2022-03-20 12:35:43,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:43,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487036799] [2022-03-20 12:35:43,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:43,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:43,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:43,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 2135 trivial. 0 not checked. [2022-03-20 12:35:43,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:43,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487036799] [2022-03-20 12:35:43,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487036799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:43,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:43,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:35:43,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295040005] [2022-03-20 12:35:43,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:43,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:43,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:43,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:43,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:43,748 INFO L87 Difference]: Start difference. First operand 6224 states and 9442 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:45,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:46,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:48,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:48,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:48,968 INFO L93 Difference]: Finished difference Result 12859 states and 19532 transitions. [2022-03-20 12:35:48,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:48,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-03-20 12:35:48,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:48,976 INFO L225 Difference]: With dead ends: 12859 [2022-03-20 12:35:48,976 INFO L226 Difference]: Without dead ends: 6663 [2022-03-20 12:35:48,982 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:48,983 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:48,983 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 12:35:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2022-03-20 12:35:49,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 6663. [2022-03-20 12:35:49,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6663 states, 6658 states have (on average 1.5169720636827877) internal successors, (10100), 6658 states have internal predecessors, (10100), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:49,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6663 states to 6663 states and 10104 transitions. [2022-03-20 12:35:49,110 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 10104 transitions. Word has length 525 [2022-03-20 12:35:49,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:49,110 INFO L478 AbstractCegarLoop]: Abstraction has 6663 states and 10104 transitions. [2022-03-20 12:35:49,110 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:49,110 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 10104 transitions. [2022-03-20 12:35:49,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-03-20 12:35:49,121 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:49,121 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:49,121 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 12:35:49,121 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:49,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:49,122 INFO L85 PathProgramCache]: Analyzing trace with hash 617108524, now seen corresponding path program 1 times [2022-03-20 12:35:49,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:49,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746410562] [2022-03-20 12:35:49,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:49,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:49,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:49,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3402 backedges. 842 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2022-03-20 12:35:49,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:49,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746410562] [2022-03-20 12:35:49,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746410562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:49,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:49,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:35:49,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58133485] [2022-03-20 12:35:49,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:49,401 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:49,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:49,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:49,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:49,401 INFO L87 Difference]: Start difference. First operand 6663 states and 10104 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:50,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:53,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:53,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:53,635 INFO L93 Difference]: Finished difference Result 13742 states and 20863 transitions. [2022-03-20 12:35:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:53,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 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 601 [2022-03-20 12:35:53,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:53,641 INFO L225 Difference]: With dead ends: 13742 [2022-03-20 12:35:53,641 INFO L226 Difference]: Without dead ends: 7107 [2022-03-20 12:35:53,646 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:53,647 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:53,647 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 379 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 12:35:53,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7107 states. [2022-03-20 12:35:53,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7107 to 7107. [2022-03-20 12:35:53,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7107 states, 7102 states have (on average 1.5185863137144466) internal successors, (10785), 7102 states have internal predecessors, (10785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:53,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7107 states to 7107 states and 10789 transitions. [2022-03-20 12:35:53,746 INFO L78 Accepts]: Start accepts. Automaton has 7107 states and 10789 transitions. Word has length 601 [2022-03-20 12:35:53,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:53,747 INFO L478 AbstractCegarLoop]: Abstraction has 7107 states and 10789 transitions. [2022-03-20 12:35:53,747 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:53,747 INFO L276 IsEmpty]: Start isEmpty. Operand 7107 states and 10789 transitions. [2022-03-20 12:35:53,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2022-03-20 12:35:53,757 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:53,757 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:53,757 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 12:35:53,757 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:53,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:53,758 INFO L85 PathProgramCache]: Analyzing trace with hash -588014011, now seen corresponding path program 1 times [2022-03-20 12:35:53,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:53,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370868900] [2022-03-20 12:35:53,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:53,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:54,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:54,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 906 proven. 0 refuted. 0 times theorem prover too weak. 3000 trivial. 0 not checked. [2022-03-20 12:35:54,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:54,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370868900] [2022-03-20 12:35:54,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370868900] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:54,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:54,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:35:54,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149941150] [2022-03-20 12:35:54,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:54,019 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:54,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:54,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:54,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:54,019 INFO L87 Difference]: Start difference. First operand 7107 states and 10789 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:57,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:57,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:57,802 INFO L93 Difference]: Finished difference Result 7553 states and 11477 transitions. [2022-03-20 12:35:57,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:57,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 644 [2022-03-20 12:35:57,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:57,824 INFO L225 Difference]: With dead ends: 7553 [2022-03-20 12:35:57,824 INFO L226 Difference]: Without dead ends: 7551 [2022-03-20 12:35:57,827 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:35:57,827 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:57,827 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 378 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 12:35:57,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7551 states. [2022-03-20 12:35:57,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7551 to 7551. [2022-03-20 12:35:57,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7551 states, 7546 states have (on average 1.5201431221839385) internal successors, (11471), 7546 states have internal predecessors, (11471), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:57,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7551 states to 7551 states and 11475 transitions. [2022-03-20 12:35:57,945 INFO L78 Accepts]: Start accepts. Automaton has 7551 states and 11475 transitions. Word has length 644 [2022-03-20 12:35:57,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:57,946 INFO L478 AbstractCegarLoop]: Abstraction has 7551 states and 11475 transitions. [2022-03-20 12:35:57,946 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:57,946 INFO L276 IsEmpty]: Start isEmpty. Operand 7551 states and 11475 transitions. [2022-03-20 12:35:57,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2022-03-20 12:35:57,956 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:57,956 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:57,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 12:35:57,956 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:57,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:57,957 INFO L85 PathProgramCache]: Analyzing trace with hash 331960158, now seen corresponding path program 1 times [2022-03-20 12:35:57,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:57,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25781745] [2022-03-20 12:35:57,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:57,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:58,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:58,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1710 proven. 48 refuted. 0 times theorem prover too weak. 2188 trivial. 0 not checked. [2022-03-20 12:35:58,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:58,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25781745] [2022-03-20 12:35:58,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25781745] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:35:58,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994901208] [2022-03-20 12:35:58,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:58,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:35:58,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:35:58,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:35:58,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 12:35:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:59,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-20 12:35:59,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:35:59,621 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:35:59,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:35:59,675 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:35:59,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:36:00,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 12:36:00,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 12:36:00,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 12:36:00,102 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-20 12:36:00,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-03-20 12:36:00,219 INFO L356 Elim1Store]: treesize reduction 120, result has 24.1 percent of original size [2022-03-20 12:36:00,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 67 [2022-03-20 12:36:01,579 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:36:01,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 12:36:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 2240 proven. 160 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2022-03-20 12:36:01,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:36:02,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-03-20 12:36:02,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-03-20 12:36:04,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 2245 proven. 0 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2022-03-20 12:36:04,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994901208] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:36:04,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:36:04,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 9] total 18 [2022-03-20 12:36:04,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406261454] [2022-03-20 12:36:04,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:36:04,738 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 12:36:04,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:36:04,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 12:36:04,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-20 12:36:04,738 INFO L87 Difference]: Start difference. First operand 7551 states and 11475 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:06,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:08,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:09,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:12,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:36:12,268 INFO L93 Difference]: Finished difference Result 23104 states and 35072 transitions. [2022-03-20 12:36:12,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 12:36:12,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 654 [2022-03-20 12:36:12,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:36:12,285 INFO L225 Difference]: With dead ends: 23104 [2022-03-20 12:36:12,285 INFO L226 Difference]: Without dead ends: 15581 [2022-03-20 12:36:12,290 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1324 GetRequests, 1305 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-03-20 12:36:12,291 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 290 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 87 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 183 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:36:12,291 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 1019 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 644 Invalid, 1 Unknown, 183 Unchecked, 5.2s Time] [2022-03-20 12:36:12,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15581 states. [2022-03-20 12:36:12,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15581 to 12899. [2022-03-20 12:36:12,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12899 states, 12894 states have (on average 1.5359081743446563) internal successors, (19804), 12894 states have internal predecessors, (19804), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12899 states to 12899 states and 19808 transitions. [2022-03-20 12:36:12,553 INFO L78 Accepts]: Start accepts. Automaton has 12899 states and 19808 transitions. Word has length 654 [2022-03-20 12:36:12,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:36:12,553 INFO L478 AbstractCegarLoop]: Abstraction has 12899 states and 19808 transitions. [2022-03-20 12:36:12,553 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:12,553 INFO L276 IsEmpty]: Start isEmpty. Operand 12899 states and 19808 transitions. [2022-03-20 12:36:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-03-20 12:36:12,568 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:36:12,568 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:36:12,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-20 12:36:12,769 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-03-20 12:36:12,769 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:36:12,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:36:12,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2044655492, now seen corresponding path program 1 times [2022-03-20 12:36:12,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:36:12,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504245632] [2022-03-20 12:36:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:36:12,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:36:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:13,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:36:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:13,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 2140 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2022-03-20 12:36:13,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:36:13,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504245632] [2022-03-20 12:36:13,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504245632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:36:13,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:36:13,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:36:13,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931242039] [2022-03-20 12:36:13,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:36:13,037 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:36:13,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:36:13,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:36:13,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:36:13,037 INFO L87 Difference]: Start difference. First operand 12899 states and 19808 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:14,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:15,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:17,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:18,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:19,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:36:19,683 INFO L93 Difference]: Finished difference Result 27396 states and 41757 transitions. [2022-03-20 12:36:19,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:36:19,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 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 656 [2022-03-20 12:36:19,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:36:19,699 INFO L225 Difference]: With dead ends: 27396 [2022-03-20 12:36:19,699 INFO L226 Difference]: Without dead ends: 14525 [2022-03-20 12:36:19,711 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:36:19,711 INFO L913 BasicCegarLoop]: 302 mSDtfsCounter, 83 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:36:19,712 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 735 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 640 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-20 12:36:19,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14525 states. [2022-03-20 12:36:19,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14525 to 12916. [2022-03-20 12:36:19,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12916 states, 12911 states have (on average 1.5352025404693672) internal successors, (19821), 12911 states have internal predecessors, (19821), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12916 states to 12916 states and 19825 transitions. [2022-03-20 12:36:19,966 INFO L78 Accepts]: Start accepts. Automaton has 12916 states and 19825 transitions. Word has length 656 [2022-03-20 12:36:19,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:36:19,967 INFO L478 AbstractCegarLoop]: Abstraction has 12916 states and 19825 transitions. [2022-03-20 12:36:19,967 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:19,967 INFO L276 IsEmpty]: Start isEmpty. Operand 12916 states and 19825 transitions. [2022-03-20 12:36:19,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2022-03-20 12:36:19,981 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:36:19,981 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:36:19,981 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 12:36:19,981 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:36:19,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:36:19,981 INFO L85 PathProgramCache]: Analyzing trace with hash -703708874, now seen corresponding path program 1 times [2022-03-20 12:36:19,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:36:19,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426538455] [2022-03-20 12:36:19,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:36:19,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:36:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:36:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:20,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4207 backedges. 2170 proven. 0 refuted. 0 times theorem prover too weak. 2037 trivial. 0 not checked. [2022-03-20 12:36:20,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:36:20,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426538455] [2022-03-20 12:36:20,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426538455] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:36:20,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:36:20,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:36:20,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865092031] [2022-03-20 12:36:20,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:36:20,302 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:36:20,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:36:20,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:36:20,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:36:20,303 INFO L87 Difference]: Start difference. First operand 12916 states and 19825 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:22,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:23,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:25,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:26,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:27,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:36:27,593 INFO L93 Difference]: Finished difference Result 27243 states and 41536 transitions. [2022-03-20 12:36:27,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:36:27,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 684 [2022-03-20 12:36:27,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:36:27,609 INFO L225 Difference]: With dead ends: 27243 [2022-03-20 12:36:27,609 INFO L226 Difference]: Without dead ends: 14355 [2022-03-20 12:36:27,619 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:36:27,619 INFO L913 BasicCegarLoop]: 300 mSDtfsCounter, 111 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:36:27,619 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 731 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 634 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-03-20 12:36:27,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14355 states. [2022-03-20 12:36:27,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14355 to 12916. [2022-03-20 12:36:27,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12916 states, 12911 states have (on average 1.5327240337696537) internal successors, (19789), 12911 states have internal predecessors, (19789), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:27,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12916 states to 12916 states and 19793 transitions. [2022-03-20 12:36:27,870 INFO L78 Accepts]: Start accepts. Automaton has 12916 states and 19793 transitions. Word has length 684 [2022-03-20 12:36:27,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:36:27,870 INFO L478 AbstractCegarLoop]: Abstraction has 12916 states and 19793 transitions. [2022-03-20 12:36:27,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:27,875 INFO L276 IsEmpty]: Start isEmpty. Operand 12916 states and 19793 transitions. [2022-03-20 12:36:27,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2022-03-20 12:36:27,889 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:36:27,889 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:36:27,889 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 12:36:27,889 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:36:27,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:36:27,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1823102722, now seen corresponding path program 1 times [2022-03-20 12:36:27,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:36:27,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304534710] [2022-03-20 12:36:27,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:36:27,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:36:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:36:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:28,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4578 backedges. 2484 proven. 0 refuted. 0 times theorem prover too weak. 2094 trivial. 0 not checked. [2022-03-20 12:36:28,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:36:28,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304534710] [2022-03-20 12:36:28,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304534710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:36:28,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:36:28,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:36:28,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533019681] [2022-03-20 12:36:28,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:36:28,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:36:28,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:36:28,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:36:28,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:36:28,177 INFO L87 Difference]: Start difference. First operand 12916 states and 19793 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:30,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:30,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:36:30,991 INFO L93 Difference]: Finished difference Result 27115 states and 41292 transitions. [2022-03-20 12:36:30,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:36:30,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 698 [2022-03-20 12:36:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:36:31,007 INFO L225 Difference]: With dead ends: 27115 [2022-03-20 12:36:31,008 INFO L226 Difference]: Without dead ends: 14227 [2022-03-20 12:36:31,021 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:36:31,021 INFO L913 BasicCegarLoop]: 296 mSDtfsCounter, 96 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:36:31,021 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 723 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 616 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:36:31,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14227 states. [2022-03-20 12:36:31,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14227 to 12916. [2022-03-20 12:36:31,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12916 states, 12911 states have (on average 1.5302455270699404) internal successors, (19757), 12911 states have internal predecessors, (19757), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:31,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12916 states to 12916 states and 19761 transitions. [2022-03-20 12:36:31,298 INFO L78 Accepts]: Start accepts. Automaton has 12916 states and 19761 transitions. Word has length 698 [2022-03-20 12:36:31,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:36:31,299 INFO L478 AbstractCegarLoop]: Abstraction has 12916 states and 19761 transitions. [2022-03-20 12:36:31,299 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:31,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12916 states and 19761 transitions. [2022-03-20 12:36:31,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2022-03-20 12:36:31,312 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:36:31,312 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:36:31,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-20 12:36:31,313 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:36:31,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:36:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash 88451326, now seen corresponding path program 1 times [2022-03-20 12:36:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:36:31,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162740768] [2022-03-20 12:36:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:36:31,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:36:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:31,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:36:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:31,565 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2542 proven. 46 refuted. 0 times theorem prover too weak. 2050 trivial. 0 not checked. [2022-03-20 12:36:31,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:36:31,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162740768] [2022-03-20 12:36:31,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162740768] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:36:31,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943592725] [2022-03-20 12:36:31,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:36:31,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:36:31,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:36:31,567 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:36:31,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 12:36:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:32,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 3117 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 12:36:32,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:36:32,829 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:36:32,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:36:32,873 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:36:32,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:36:33,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 12:36:33,236 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:36:33,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:36:33,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:36:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2537 proven. 238 refuted. 0 times theorem prover too weak. 1863 trivial. 0 not checked. [2022-03-20 12:36:33,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:36:34,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2510 proven. 0 refuted. 0 times theorem prover too weak. 2128 trivial. 0 not checked. [2022-03-20 12:36:34,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943592725] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:36:34,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:36:34,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-20 12:36:34,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137901656] [2022-03-20 12:36:34,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:36:34,165 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:36:34,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:36:34,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:36:34,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-20 12:36:34,166 INFO L87 Difference]: Start difference. First operand 12916 states and 19761 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:36,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:36,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:36:36,599 INFO L93 Difference]: Finished difference Result 28722 states and 43728 transitions. [2022-03-20 12:36:36,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:36:36,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 698 [2022-03-20 12:36:36,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:36:36,615 INFO L225 Difference]: With dead ends: 28722 [2022-03-20 12:36:36,615 INFO L226 Difference]: Without dead ends: 15834 [2022-03-20 12:36:36,623 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1406 GetRequests, 1396 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-20 12:36:36,623 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 130 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:36:36,623 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 622 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 12:36:36,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15834 states. [2022-03-20 12:36:36,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15834 to 13415. [2022-03-20 12:36:36,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13415 states, 13410 states have (on average 1.5415361670395227) internal successors, (20672), 13410 states have internal predecessors, (20672), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:36,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13415 states to 13415 states and 20676 transitions. [2022-03-20 12:36:36,853 INFO L78 Accepts]: Start accepts. Automaton has 13415 states and 20676 transitions. Word has length 698 [2022-03-20 12:36:36,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:36:36,853 INFO L478 AbstractCegarLoop]: Abstraction has 13415 states and 20676 transitions. [2022-03-20 12:36:36,853 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:36,854 INFO L276 IsEmpty]: Start isEmpty. Operand 13415 states and 20676 transitions. [2022-03-20 12:36:36,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2022-03-20 12:36:36,868 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:36:36,868 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:36:36,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-20 12:36:37,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:36:37,069 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:36:37,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:36:37,069 INFO L85 PathProgramCache]: Analyzing trace with hash -539237120, now seen corresponding path program 1 times [2022-03-20 12:36:37,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:36:37,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249443956] [2022-03-20 12:36:37,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:36:37,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:36:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:37,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:36:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:37,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4645 backedges. 2441 proven. 0 refuted. 0 times theorem prover too weak. 2204 trivial. 0 not checked. [2022-03-20 12:36:37,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:36:37,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249443956] [2022-03-20 12:36:37,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249443956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:36:37,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:36:37,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:36:37,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037119054] [2022-03-20 12:36:37,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:36:37,378 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:36:37,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:36:37,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:36:37,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:36:37,378 INFO L87 Difference]: Start difference. First operand 13415 states and 20676 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:39,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:42,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:36:43,022 INFO L93 Difference]: Finished difference Result 28422 states and 43629 transitions. [2022-03-20 12:36:43,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:36:43,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 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 700 [2022-03-20 12:36:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:36:43,041 INFO L225 Difference]: With dead ends: 28422 [2022-03-20 12:36:43,041 INFO L226 Difference]: Without dead ends: 15035 [2022-03-20 12:36:43,053 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:36:43,053 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 38 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:36:43,054 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 657 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 12:36:43,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15035 states. [2022-03-20 12:36:43,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15035 to 14247. [2022-03-20 12:36:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14247 states, 14242 states have (on average 1.5391096756073586) internal successors, (21920), 14242 states have internal predecessors, (21920), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14247 states to 14247 states and 21924 transitions. [2022-03-20 12:36:43,334 INFO L78 Accepts]: Start accepts. Automaton has 14247 states and 21924 transitions. Word has length 700 [2022-03-20 12:36:43,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:36:43,334 INFO L478 AbstractCegarLoop]: Abstraction has 14247 states and 21924 transitions. [2022-03-20 12:36:43,334 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:43,334 INFO L276 IsEmpty]: Start isEmpty. Operand 14247 states and 21924 transitions. [2022-03-20 12:36:43,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-03-20 12:36:43,351 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:36:43,351 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:36:43,351 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-20 12:36:43,351 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:36:43,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:36:43,352 INFO L85 PathProgramCache]: Analyzing trace with hash 876144030, now seen corresponding path program 1 times [2022-03-20 12:36:43,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:36:43,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755989032] [2022-03-20 12:36:43,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:36:43,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:36:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:43,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:36:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:43,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 2525 proven. 0 refuted. 0 times theorem prover too weak. 2237 trivial. 0 not checked. [2022-03-20 12:36:43,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:36:43,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755989032] [2022-03-20 12:36:43,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755989032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:36:43,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:36:43,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:36:43,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383598659] [2022-03-20 12:36:43,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:36:43,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:36:43,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:36:43,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:36:43,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:36:43,588 INFO L87 Difference]: Start difference. First operand 14247 states and 21924 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:45,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:47,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:49,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:50,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:36:50,473 INFO L93 Difference]: Finished difference Result 29724 states and 45631 transitions. [2022-03-20 12:36:50,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:36:50,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 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 706 [2022-03-20 12:36:50,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:36:50,492 INFO L225 Difference]: With dead ends: 29724 [2022-03-20 12:36:50,493 INFO L226 Difference]: Without dead ends: 15505 [2022-03-20 12:36:50,506 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:36:50,506 INFO L913 BasicCegarLoop]: 273 mSDtfsCounter, 52 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:36:50,506 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 677 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 544 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-20 12:36:50,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15505 states. [2022-03-20 12:36:50,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15505 to 14757. [2022-03-20 12:36:50,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14757 states, 14752 states have (on average 1.5400623644251628) internal successors, (22719), 14752 states have internal predecessors, (22719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:50,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14757 states to 14757 states and 22723 transitions. [2022-03-20 12:36:50,813 INFO L78 Accepts]: Start accepts. Automaton has 14757 states and 22723 transitions. Word has length 706 [2022-03-20 12:36:50,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:36:50,813 INFO L478 AbstractCegarLoop]: Abstraction has 14757 states and 22723 transitions. [2022-03-20 12:36:50,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:50,813 INFO L276 IsEmpty]: Start isEmpty. Operand 14757 states and 22723 transitions. [2022-03-20 12:36:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2022-03-20 12:36:50,828 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:36:50,829 INFO L499 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 20, 20, 20, 20, 20, 18, 18, 18, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:36:50,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-20 12:36:50,829 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:36:50,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:36:50,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1108194430, now seen corresponding path program 1 times [2022-03-20 12:36:50,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:36:50,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565921632] [2022-03-20 12:36:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:36:50,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:36:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:51,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:36:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:51,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4604 backedges. 2451 proven. 0 refuted. 0 times theorem prover too weak. 2153 trivial. 0 not checked. [2022-03-20 12:36:51,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:36:51,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565921632] [2022-03-20 12:36:51,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565921632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:36:51,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:36:51,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:36:51,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086793115] [2022-03-20 12:36:51,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:36:51,088 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:36:51,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:36:51,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:36:51,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:36:51,088 INFO L87 Difference]: Start difference. First operand 14757 states and 22723 transitions. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 4 states have internal predecessors, (234), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:52,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:54,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:55,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:56,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:36:57,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:36:57,048 INFO L93 Difference]: Finished difference Result 31682 states and 48663 transitions. [2022-03-20 12:36:57,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:36:57,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 4 states have internal predecessors, (234), 1 states have call successors, (3), 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 710 [2022-03-20 12:36:57,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:36:57,066 INFO L225 Difference]: With dead ends: 31682 [2022-03-20 12:36:57,066 INFO L226 Difference]: Without dead ends: 16953 [2022-03-20 12:36:57,076 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:36:57,076 INFO L913 BasicCegarLoop]: 269 mSDtfsCounter, 55 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:36:57,077 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 670 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 563 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 12:36:57,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16953 states. [2022-03-20 12:36:57,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16953 to 15749. [2022-03-20 12:36:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15749 states, 15744 states have (on average 1.543381605691057) internal successors, (24299), 15744 states have internal predecessors, (24299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:57,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15749 states to 15749 states and 24303 transitions. [2022-03-20 12:36:57,346 INFO L78 Accepts]: Start accepts. Automaton has 15749 states and 24303 transitions. Word has length 710 [2022-03-20 12:36:57,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:36:57,346 INFO L478 AbstractCegarLoop]: Abstraction has 15749 states and 24303 transitions. [2022-03-20 12:36:57,346 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 4 states have internal predecessors, (234), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:36:57,347 INFO L276 IsEmpty]: Start isEmpty. Operand 15749 states and 24303 transitions. [2022-03-20 12:36:57,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-03-20 12:36:57,365 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:36:57,365 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:36:57,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-20 12:36:57,365 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:36:57,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:36:57,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1995830594, now seen corresponding path program 1 times [2022-03-20 12:36:57,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:36:57,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501989471] [2022-03-20 12:36:57,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:36:57,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:36:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:58,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:36:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2110 proven. 586 refuted. 0 times theorem prover too weak. 2163 trivial. 0 not checked. [2022-03-20 12:36:58,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:36:58,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501989471] [2022-03-20 12:36:58,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501989471] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:36:58,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273491587] [2022-03-20 12:36:58,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:36:58,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:36:58,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:36:58,078 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:36:58,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 12:36:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:36:59,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 3123 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-20 12:36:59,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:36:59,479 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:36:59,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:36:59,760 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:36:59,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:36:59,839 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:36:59,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:37:00,002 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-20 12:37:00,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 12:37:00,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 12:37:00,037 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 12:37:00,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-03-20 12:37:00,092 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 12:37:00,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-03-20 12:37:00,218 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:37:00,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-03-20 12:37:00,287 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 12:37:00,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2445 proven. 215 refuted. 0 times theorem prover too weak. 2199 trivial. 0 not checked. [2022-03-20 12:37:00,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:37:00,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-20 12:37:00,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-20 12:37:03,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2022-03-20 12:37:03,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2022-03-20 12:37:03,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2022-03-20 12:37:03,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2258 proven. 0 refuted. 0 times theorem prover too weak. 2601 trivial. 0 not checked. [2022-03-20 12:37:03,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273491587] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:37:03,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:37:03,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 9] total 22 [2022-03-20 12:37:03,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151249724] [2022-03-20 12:37:03,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:37:03,832 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:37:03,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:37:03,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:37:03,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=407, Unknown=1, NotChecked=0, Total=462 [2022-03-20 12:37:03,832 INFO L87 Difference]: Start difference. First operand 15749 states and 24303 transitions. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:37:05,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:37:05,007 INFO L93 Difference]: Finished difference Result 39280 states and 60534 transitions. [2022-03-20 12:37:05,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:37:05,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-03-20 12:37:05,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:37:05,034 INFO L225 Difference]: With dead ends: 39280 [2022-03-20 12:37:05,035 INFO L226 Difference]: Without dead ends: 23559 [2022-03-20 12:37:05,086 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1444 GetRequests, 1423 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=60, Invalid=445, Unknown=1, NotChecked=0, Total=506 [2022-03-20 12:37:05,086 INFO L913 BasicCegarLoop]: 339 mSDtfsCounter, 164 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 109 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:37:05,086 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 939 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 286 Invalid, 0 Unknown, 109 Unchecked, 0.9s Time] [2022-03-20 12:37:05,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23559 states. [2022-03-20 12:37:05,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23559 to 16481. [2022-03-20 12:37:05,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16481 states, 16476 states have (on average 1.5412114590920125) internal successors, (25393), 16476 states have internal predecessors, (25393), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:37:05,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16481 states to 16481 states and 25397 transitions. [2022-03-20 12:37:05,399 INFO L78 Accepts]: Start accepts. Automaton has 16481 states and 25397 transitions. Word has length 712 [2022-03-20 12:37:05,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:37:05,400 INFO L478 AbstractCegarLoop]: Abstraction has 16481 states and 25397 transitions. [2022-03-20 12:37:05,400 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:37:05,400 INFO L276 IsEmpty]: Start isEmpty. Operand 16481 states and 25397 transitions. [2022-03-20 12:37:05,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-03-20 12:37:05,420 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:37:05,420 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:37:05,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-20 12:37:05,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:37:05,621 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:37:05,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:37:05,621 INFO L85 PathProgramCache]: Analyzing trace with hash 773050850, now seen corresponding path program 1 times [2022-03-20 12:37:05,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:37:05,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384056984] [2022-03-20 12:37:05,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:37:05,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:37:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:37:07,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:37:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:37:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1590 proven. 2968 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-03-20 12:37:07,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:37:07,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384056984] [2022-03-20 12:37:07,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384056984] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:37:07,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696354955] [2022-03-20 12:37:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:37:07,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:37:07,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:37:07,414 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:37:07,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 12:37:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:37:08,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 3125 conjuncts, 90 conjunts are in the unsatisfiable core [2022-03-20 12:37:08,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:37:08,934 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:37:08,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:37:09,029 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 12:37:09,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 12:37:09,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 12:37:09,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:09,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-20 12:37:09,613 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 12:37:09,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-20 12:37:09,621 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:37:09,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-20 12:37:10,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:10,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 12:37:10,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:10,153 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 12:37:10,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-20 12:37:10,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:10,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 12:37:10,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:10,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 12:37:10,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:10,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 12:37:10,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:10,264 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 12:37:10,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-20 12:37:10,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:10,971 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 12:37:10,971 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-20 12:37:10,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:11,023 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 12:37:11,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-20 12:37:11,071 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-20 12:37:11,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-20 12:37:12,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 313 [2022-03-20 12:37:12,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:12,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 295 [2022-03-20 12:37:12,471 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-03-20 12:37:12,471 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 379 treesize of output 392 [2022-03-20 12:37:18,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:18,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:18,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:18,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 286 [2022-03-20 12:37:18,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:18,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:18,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:18,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 304 [2022-03-20 12:37:18,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:18,189 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 12:37:18,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 374 treesize of output 362 [2022-03-20 12:37:18,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:18,532 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 148 [2022-03-20 12:37:18,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:37:18,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 88 [2022-03-20 12:37:18,559 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-03-20 12:37:18,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 107 treesize of output 108 [2022-03-20 12:37:18,641 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 12:37:18,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 12:37:18,789 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:37:18,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 12:37:18,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1748 proven. 589 refuted. 0 times theorem prover too weak. 2522 trivial. 0 not checked. [2022-03-20 12:37:18,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:37:22,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:37:22,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:37:22,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 714 treesize of output 552 [2022-03-20 12:37:22,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:37:22,976 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:37:22,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 924 treesize of output 768 [2022-03-20 12:37:27,358 INFO L356 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2022-03-20 12:37:27,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 232 treesize of output 1 [2022-03-20 12:37:27,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1895 proven. 141 refuted. 0 times theorem prover too weak. 2823 trivial. 0 not checked. [2022-03-20 12:37:27,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696354955] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 12:37:27,744 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 12:37:27,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 19, 13] total 51 [2022-03-20 12:37:27,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414360948] [2022-03-20 12:37:27,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 12:37:27,746 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-03-20 12:37:27,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:37:27,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-03-20 12:37:27,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=2273, Unknown=2, NotChecked=0, Total=2550 [2022-03-20 12:37:27,747 INFO L87 Difference]: Start difference. First operand 16481 states and 25397 transitions. Second operand has 51 states, 51 states have (on average 18.235294117647058) internal successors, (930), 50 states have internal predecessors, (930), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:37:29,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:38:12,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:38:12,505 INFO L93 Difference]: Finished difference Result 176034 states and 265349 transitions. [2022-03-20 12:38:12,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 297 states. [2022-03-20 12:38:12,506 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 18.235294117647058) internal successors, (930), 50 states have internal predecessors, (930), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-03-20 12:38:12,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:38:12,794 INFO L225 Difference]: With dead ends: 176034 [2022-03-20 12:38:12,794 INFO L226 Difference]: Without dead ends: 159581 [2022-03-20 12:38:12,832 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1999 GetRequests, 1616 SyntacticMatches, 55 SemanticMatches, 328 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52035 ImplicationChecksByTransitivity, 28.6s TimeCoverageRelationStatistics Valid=8367, Invalid=100201, Unknown=2, NotChecked=0, Total=108570 [2022-03-20 12:38:12,832 INFO L913 BasicCegarLoop]: 940 mSDtfsCounter, 5661 mSDsluCounter, 18572 mSDsCounter, 0 mSdLazyCounter, 13889 mSolverCounterSat, 867 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5661 SdHoareTripleChecker+Valid, 19512 SdHoareTripleChecker+Invalid, 18193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 13889 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 3436 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:38:12,832 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [5661 Valid, 19512 Invalid, 18193 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [867 Valid, 13889 Invalid, 1 Unknown, 3436 Unchecked, 15.8s Time] [2022-03-20 12:38:12,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159581 states. [2022-03-20 12:38:16,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159581 to 102736. [2022-03-20 12:38:16,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102736 states, 102731 states have (on average 1.5625760481256874) internal successors, (160525), 102731 states have internal predecessors, (160525), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:38:16,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102736 states to 102736 states and 160529 transitions. [2022-03-20 12:38:16,409 INFO L78 Accepts]: Start accepts. Automaton has 102736 states and 160529 transitions. Word has length 712 [2022-03-20 12:38:16,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:38:16,410 INFO L478 AbstractCegarLoop]: Abstraction has 102736 states and 160529 transitions. [2022-03-20 12:38:16,410 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 18.235294117647058) internal successors, (930), 50 states have internal predecessors, (930), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:38:16,410 INFO L276 IsEmpty]: Start isEmpty. Operand 102736 states and 160529 transitions. [2022-03-20 12:38:16,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2022-03-20 12:38:16,517 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:38:16,518 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:38:16,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-20 12:38:16,719 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:38:16,719 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:38:16,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:38:16,720 INFO L85 PathProgramCache]: Analyzing trace with hash -810010802, now seen corresponding path program 1 times [2022-03-20 12:38:16,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:38:16,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326768074] [2022-03-20 12:38:16,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:38:16,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:38:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:38:16,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:38:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:38:16,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 3051 proven. 0 refuted. 0 times theorem prover too weak. 1808 trivial. 0 not checked. [2022-03-20 12:38:16,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:38:16,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326768074] [2022-03-20 12:38:16,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326768074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:38:16,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:38:16,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:38:16,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353011583] [2022-03-20 12:38:16,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:38:16,973 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:38:16,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:38:16,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:38:16,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:38:16,975 INFO L87 Difference]: Start difference. First operand 102736 states and 160529 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:38:18,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:38:23,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:38:23,386 INFO L93 Difference]: Finished difference Result 253662 states and 395848 transitions. [2022-03-20 12:38:23,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:38:23,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 1 states have call successors, (3), 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 713 [2022-03-20 12:38:23,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:38:23,701 INFO L225 Difference]: With dead ends: 253662 [2022-03-20 12:38:23,701 INFO L226 Difference]: Without dead ends: 150954 [2022-03-20 12:38:23,756 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:38:23,756 INFO L913 BasicCegarLoop]: 426 mSDtfsCounter, 151 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:38:23,756 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 655 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:38:23,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150954 states. [2022-03-20 12:38:27,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150954 to 150952. [2022-03-20 12:38:28,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150952 states, 150947 states have (on average 1.5578911803480693) internal successors, (235159), 150947 states have internal predecessors, (235159), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:38:28,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150952 states to 150952 states and 235163 transitions. [2022-03-20 12:38:28,410 INFO L78 Accepts]: Start accepts. Automaton has 150952 states and 235163 transitions. Word has length 713 [2022-03-20 12:38:28,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:38:28,411 INFO L478 AbstractCegarLoop]: Abstraction has 150952 states and 235163 transitions. [2022-03-20 12:38:28,411 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:38:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 150952 states and 235163 transitions. [2022-03-20 12:38:28,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2022-03-20 12:38:28,719 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:38:28,719 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:38:28,719 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-20 12:38:28,719 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:38:28,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:38:28,719 INFO L85 PathProgramCache]: Analyzing trace with hash 886761383, now seen corresponding path program 1 times [2022-03-20 12:38:28,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:38:28,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084007931] [2022-03-20 12:38:28,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:38:28,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:38:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:38:29,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:38:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:38:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1084 proven. 0 refuted. 0 times theorem prover too weak. 3775 trivial. 0 not checked. [2022-03-20 12:38:29,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:38:29,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084007931] [2022-03-20 12:38:29,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084007931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:38:29,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:38:29,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:38:29,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234654149] [2022-03-20 12:38:29,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:38:29,116 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:38:29,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:38:29,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:38:29,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:38:29,116 INFO L87 Difference]: Start difference. First operand 150952 states and 235163 transitions. Second operand has 5 states, 5 states have (on average 43.0) internal successors, (215), 4 states have internal predecessors, (215), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:38:31,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:38:34,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:38:39,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:38:39,819 INFO L93 Difference]: Finished difference Result 310478 states and 482704 transitions. [2022-03-20 12:38:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:38:39,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 4 states have internal predecessors, (215), 1 states have call successors, (3), 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 713 [2022-03-20 12:38:39,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:38:40,143 INFO L225 Difference]: With dead ends: 310478 [2022-03-20 12:38:40,144 INFO L226 Difference]: Without dead ends: 159554 [2022-03-20 12:38:40,213 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:38:40,214 INFO L913 BasicCegarLoop]: 299 mSDtfsCounter, 81 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:38:40,214 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 728 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 639 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-20 12:38:40,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159554 states. [2022-03-20 12:38:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159554 to 155083. [2022-03-20 12:38:44,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155083 states, 155078 states have (on average 1.5589058409316603) internal successors, (241752), 155078 states have internal predecessors, (241752), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:38:44,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155083 states to 155083 states and 241756 transitions. [2022-03-20 12:38:44,886 INFO L78 Accepts]: Start accepts. Automaton has 155083 states and 241756 transitions. Word has length 713 [2022-03-20 12:38:44,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:38:44,887 INFO L478 AbstractCegarLoop]: Abstraction has 155083 states and 241756 transitions. [2022-03-20 12:38:44,887 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 4 states have internal predecessors, (215), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:38:44,887 INFO L276 IsEmpty]: Start isEmpty. Operand 155083 states and 241756 transitions. [2022-03-20 12:38:45,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2022-03-20 12:38:45,068 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:38:45,068 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:38:45,068 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-20 12:38:45,068 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:38:45,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:38:45,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1853843610, now seen corresponding path program 1 times [2022-03-20 12:38:45,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:38:45,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568335923] [2022-03-20 12:38:45,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:38:45,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:38:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:38:47,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:38:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:38:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4865 backedges. 1577 proven. 2833 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2022-03-20 12:38:47,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:38:47,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568335923] [2022-03-20 12:38:47,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568335923] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:38:47,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158115494] [2022-03-20 12:38:47,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:38:47,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:38:47,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:38:47,418 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:38:47,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 12:38:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:38:48,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 3128 conjuncts, 104 conjunts are in the unsatisfiable core [2022-03-20 12:38:48,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:38:48,993 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:38:48,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:38:49,095 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 12:38:49,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 12:38:49,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 12:38:49,577 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-20 12:38:49,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 69 [2022-03-20 12:38:49,586 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-03-20 12:38:49,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 55 [2022-03-20 12:38:49,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-03-20 12:38:49,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-03-20 12:38:49,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-03-20 12:38:49,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:49,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 57 [2022-03-20 12:38:49,650 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:38:49,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 69 [2022-03-20 12:38:49,671 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-03-20 12:38:49,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 85 [2022-03-20 12:38:49,687 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-20 12:38:49,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-03-20 12:38:49,708 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-20 12:38:49,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:49,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-20 12:38:49,791 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 12:38:49,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-20 12:38:49,798 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:38:49,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-20 12:38:50,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:50,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 12:38:50,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:50,345 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 12:38:50,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-20 12:38:50,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:50,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 12:38:50,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:50,420 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 12:38:50,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-20 12:38:50,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:50,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-20 12:38:50,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:50,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-20 12:38:51,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:51,055 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 12:38:51,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-20 12:38:51,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:51,087 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 12:38:51,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-20 12:38:51,126 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-03-20 12:38:51,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-03-20 12:38:52,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 326 treesize of output 266 [2022-03-20 12:38:52,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:52,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 326 treesize of output 266 [2022-03-20 12:38:52,382 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-03-20 12:38:52,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 326 treesize of output 363 [2022-03-20 12:38:57,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:57,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:57,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:57,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 321 treesize of output 257 [2022-03-20 12:38:57,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:57,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:57,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:57,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 321 treesize of output 257 [2022-03-20 12:38:57,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:57,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:57,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:57,379 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-03-20 12:38:57,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 330 treesize of output 345 [2022-03-20 12:38:57,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:57,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 97 [2022-03-20 12:38:57,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:38:57,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 61 [2022-03-20 12:38:57,684 INFO L356 Elim1Store]: treesize reduction 151, result has 29.4 percent of original size [2022-03-20 12:38:57,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 89 treesize of output 123 [2022-03-20 12:38:57,781 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 12:38:57,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 12:38:57,898 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:38:57,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 12:38:57,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4865 backedges. 1768 proven. 576 refuted. 0 times theorem prover too weak. 2521 trivial. 0 not checked. [2022-03-20 12:38:57,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:39:03,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4865 backedges. 1867 proven. 175 refuted. 0 times theorem prover too weak. 2823 trivial. 0 not checked. [2022-03-20 12:39:03,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158115494] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 12:39:03,312 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 12:39:03,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 12] total 50 [2022-03-20 12:39:03,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117602260] [2022-03-20 12:39:03,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 12:39:03,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-20 12:39:03,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:39:03,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-20 12:39:03,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=2169, Unknown=0, NotChecked=0, Total=2450 [2022-03-20 12:39:03,315 INFO L87 Difference]: Start difference. First operand 155083 states and 241756 transitions. Second operand has 50 states, 50 states have (on average 17.14) internal successors, (857), 49 states have internal predecessors, (857), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:39:06,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:08,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:10,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:14,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:16,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:18,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:19,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:21,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:23,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:24,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:26,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:28,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:39:30,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []