/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 16:34:50,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 16:34:50,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 16:34:50,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 16:34:50,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 16:34:50,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 16:34:50,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 16:34:50,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 16:34:50,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 16:34:50,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 16:34:50,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 16:34:50,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 16:34:50,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 16:34:50,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 16:34:50,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 16:34:50,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 16:34:50,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 16:34:50,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 16:34:50,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 16:34:50,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 16:34:50,082 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 16:34:50,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 16:34:50,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 16:34:50,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 16:34:50,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 16:34:50,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 16:34:50,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 16:34:50,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 16:34:50,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 16:34:50,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 16:34:50,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-18 16:34:50,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 16:34:50,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 16:34:50,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 16:34:50,097 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-18 16:34:50,120 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 16:34:50,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 16:34:50,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-18 16:34:50,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-18 16:34:50,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-18 16:34:50,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-18 16:34:50,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-18 16:34:50,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-18 16:34:50,123 INFO L138 SettingsManager]: * Use SBE=true [2022-03-18 16:34:50,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 16:34:50,124 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 16:34:50,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 16:34:50,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 16:34:50,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 16:34:50,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 16:34:50,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 16:34:50,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 16:34:50,124 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 16:34:50,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 16:34:50,124 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 16:34:50,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 16:34:50,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 16:34:50,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 16:34:50,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 16:34:50,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:34:50,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 16:34:50,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-18 16:34:50,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-18 16:34:50,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 16:34:50,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-18 16:34:50,125 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-18 16:34:50,125 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-18 16:34:50,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-18 16:34:50,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 16:34:50,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 16:34:50,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 16:34:50,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 16:34:50,320 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 16:34:50,321 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 16:34:50,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-03-18 16:34:50,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838bb95d0/31388607cb11452a9ed9e46dab7c2419/FLAG7b0b3360a [2022-03-18 16:34:50,828 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 16:34:50,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-03-18 16:34:50,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838bb95d0/31388607cb11452a9ed9e46dab7c2419/FLAG7b0b3360a [2022-03-18 16:34:50,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838bb95d0/31388607cb11452a9ed9e46dab7c2419 [2022-03-18 16:34:50,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 16:34:50,861 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-18 16:34:50,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 16:34:50,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 16:34:50,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 16:34:50,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:34:50" (1/1) ... [2022-03-18 16:34:50,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ef3cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:34:50, skipping insertion in model container [2022-03-18 16:34:50,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:34:50" (1/1) ... [2022-03-18 16:34:50,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 16:34:50,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 16:34:51,191 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.11.i.cil-2.c[74369,74382] [2022-03-18 16:34:51,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:34:51,216 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 16:34:51,290 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.11.i.cil-2.c[74369,74382] [2022-03-18 16:34:51,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:34:51,303 INFO L208 MainTranslator]: Completed translation [2022-03-18 16:34:51,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:34:51 WrapperNode [2022-03-18 16:34:51,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 16:34:51,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 16:34:51,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 16:34:51,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 16:34:51,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:34:51" (1/1) ... [2022-03-18 16:34:51,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:34:51" (1/1) ... [2022-03-18 16:34:51,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:34:51" (1/1) ... [2022-03-18 16:34:51,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:34:51" (1/1) ... [2022-03-18 16:34:51,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:34:51" (1/1) ... [2022-03-18 16:34:51,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:34:51" (1/1) ... [2022-03-18 16:34:51,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:34:51" (1/1) ... [2022-03-18 16:34:51,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 16:34:51,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 16:34:51,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 16:34:51,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 16:34:51,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:34:51" (1/1) ... [2022-03-18 16:34:51,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:34:51,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:34:51,454 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) [2022-03-18 16:34:51,460 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 [2022-03-18 16:34:51,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 16:34:51,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 16:34:51,490 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 16:34:51,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-18 16:34:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-18 16:34:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 16:34:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-18 16:34:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 16:34:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 16:34:51,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 16:34:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 16:34:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 16:34:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 16:34:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 16:34:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 16:34:51,657 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 16:34:51,658 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 16:34:52,238 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 16:34:52,662 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-18 16:34:52,662 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-18 16:34:52,672 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 16:34:52,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 16:34:52,679 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 16:34:52,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:34:52 BoogieIcfgContainer [2022-03-18 16:34:52,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 16:34:52,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 16:34:52,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 16:34:52,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 16:34:52,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 04:34:50" (1/3) ... [2022-03-18 16:34:52,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc67072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:34:52, skipping insertion in model container [2022-03-18 16:34:52,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:34:51" (2/3) ... [2022-03-18 16:34:52,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc67072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:34:52, skipping insertion in model container [2022-03-18 16:34:52,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:34:52" (3/3) ... [2022-03-18 16:34:52,689 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.11.i.cil-2.c [2022-03-18 16:34:52,696 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-18 16:34:52,696 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 16:34:52,742 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 16:34:52,746 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=PETRI_NET, 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 [2022-03-18 16:34:52,747 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 16:34:52,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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) [2022-03-18 16:34:52,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-18 16:34:52,767 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:34:52,768 INFO L500 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] [2022-03-18 16:34:52,768 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:34:52,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:34:52,772 INFO L85 PathProgramCache]: Analyzing trace with hash -671352377, now seen corresponding path program 1 times [2022-03-18 16:34:52,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:34:52,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206633825] [2022-03-18 16:34:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:34:52,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:34:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:34:53,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:34:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:34:53,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:34:53,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:34:53,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206633825] [2022-03-18 16:34:53,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206633825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:34:53,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:34:53,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:34:53,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622669957] [2022-03-18 16:34:53,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:34:53,247 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:34:53,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:34:53,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:34:53,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:34:53,266 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:34:54,592 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 [] [2022-03-18 16:34:56,579 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 [] [2022-03-18 16:34:57,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:34:57,327 INFO L93 Difference]: Finished difference Result 430 states and 727 transitions. [2022-03-18 16:34:57,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:34:57,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-18 16:34:57,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:34:57,338 INFO L225 Difference]: With dead ends: 430 [2022-03-18 16:34:57,339 INFO L226 Difference]: Without dead ends: 261 [2022-03-18 16:34:57,341 INFO L911 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 [2022-03-18 16:34:57,343 INFO L912 BasicCegarLoop]: 157 mSDtfsCounter, 167 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:34:57,344 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-18 16:34:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-18 16:34:57,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 170. [2022-03-18 16:34:57,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:34:57,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-03-18 16:34:57,391 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-03-18 16:34:57,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:34:57,392 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-03-18 16:34:57,392 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:34:57,392 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-03-18 16:34:57,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-18 16:34:57,394 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:34:57,394 INFO L500 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] [2022-03-18 16:34:57,394 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 16:34:57,394 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:34:57,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:34:57,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1244096364, now seen corresponding path program 1 times [2022-03-18 16:34:57,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:34:57,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191497549] [2022-03-18 16:34:57,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:34:57,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:34:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:34:57,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:34:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:34:57,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:34:57,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:34:57,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191497549] [2022-03-18 16:34:57,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191497549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:34:57,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:34:57,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:34:57,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493902592] [2022-03-18 16:34:57,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:34:57,593 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:34:57,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:34:57,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:34:57,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:34:57,594 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:34:59,031 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 [] [2022-03-18 16:35:00,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:01,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:35:01,404 INFO L93 Difference]: Finished difference Result 444 states and 697 transitions. [2022-03-18 16:35:01,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:35:01,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-03-18 16:35:01,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:35:01,406 INFO L225 Difference]: With dead ends: 444 [2022-03-18 16:35:01,406 INFO L226 Difference]: Without dead ends: 289 [2022-03-18 16:35:01,407 INFO L911 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 [2022-03-18 16:35:01,408 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 134 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:35:01,408 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-18 16:35:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-03-18 16:35:01,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 199. [2022-03-18 16:35:01,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:01,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-03-18 16:35:01,420 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-03-18 16:35:01,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:35:01,420 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-03-18 16:35:01,420 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-03-18 16:35:01,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-18 16:35:01,421 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:35:01,421 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:35:01,422 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 16:35:01,422 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:35:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:35:01,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1913847322, now seen corresponding path program 1 times [2022-03-18 16:35:01,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:35:01,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408903447] [2022-03-18 16:35:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:35:01,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:35:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:01,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:35:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:01,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:35:01,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:35:01,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408903447] [2022-03-18 16:35:01,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408903447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:35:01,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:35:01,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:35:01,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925099957] [2022-03-18 16:35:01,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:35:01,563 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:35:01,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:35:01,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:35:01,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:35:01,564 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:04,284 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 [] [2022-03-18 16:35:06,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:06,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:35:06,684 INFO L93 Difference]: Finished difference Result 503 states and 800 transitions. [2022-03-18 16:35:06,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:35:06,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-18 16:35:06,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:35:06,686 INFO L225 Difference]: With dead ends: 503 [2022-03-18 16:35:06,686 INFO L226 Difference]: Without dead ends: 319 [2022-03-18 16:35:06,687 INFO L911 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 [2022-03-18 16:35:06,701 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:35:06,702 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-18 16:35:06,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-03-18 16:35:06,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 239. [2022-03-18 16:35:06,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:06,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-03-18 16:35:06,719 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 49 [2022-03-18 16:35:06,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:35:06,720 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-03-18 16:35:06,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:06,720 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-03-18 16:35:06,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-18 16:35:06,721 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:35:06,721 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:35:06,721 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 16:35:06,722 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:35:06,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:35:06,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1017457862, now seen corresponding path program 1 times [2022-03-18 16:35:06,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:35:06,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683382911] [2022-03-18 16:35:06,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:35:06,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:35:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:06,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:35:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:06,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:35:06,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:35:06,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683382911] [2022-03-18 16:35:06,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683382911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:35:06,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:35:06,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:35:06,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036541503] [2022-03-18 16:35:06,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:35:06,871 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:35:06,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:35:06,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:35:06,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:35:06,872 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:08,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:09,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:12,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:12,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:35:12,665 INFO L93 Difference]: Finished difference Result 553 states and 890 transitions. [2022-03-18 16:35:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:35:12,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-18 16:35:12,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:35:12,667 INFO L225 Difference]: With dead ends: 553 [2022-03-18 16:35:12,667 INFO L226 Difference]: Without dead ends: 329 [2022-03-18 16:35:12,668 INFO L911 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 [2022-03-18 16:35:12,669 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:35:12,669 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 364 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-18 16:35:12,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-03-18 16:35:12,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 250. [2022-03-18 16:35:12,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:12,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-03-18 16:35:12,682 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 50 [2022-03-18 16:35:12,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:35:12,682 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-03-18 16:35:12,683 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:12,683 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-03-18 16:35:12,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-18 16:35:12,688 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:35:12,689 INFO L500 BasicCegarLoop]: trace histogram [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] [2022-03-18 16:35:12,689 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 16:35:12,689 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:35:12,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:35:12,689 INFO L85 PathProgramCache]: Analyzing trace with hash -16045120, now seen corresponding path program 1 times [2022-03-18 16:35:12,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:35:12,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497066341] [2022-03-18 16:35:12,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:35:12,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:35:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:12,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:35:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:12,831 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-18 16:35:12,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:35:12,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497066341] [2022-03-18 16:35:12,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497066341] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:35:12,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:35:12,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:35:12,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371795672] [2022-03-18 16:35:12,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:35:12,833 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:35:12,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:35:12,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:35:12,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:35:12,833 INFO L87 Difference]: Start difference. First operand 250 states and 409 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) [2022-03-18 16:35:14,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:16,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:18,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:20,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:20,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:35:20,808 INFO L93 Difference]: Finished difference Result 513 states and 840 transitions. [2022-03-18 16:35:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:35:20,809 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 70 [2022-03-18 16:35:20,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:35:20,810 INFO L225 Difference]: With dead ends: 513 [2022-03-18 16:35:20,810 INFO L226 Difference]: Without dead ends: 278 [2022-03-18 16:35:20,811 INFO L911 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 [2022-03-18 16:35:20,812 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:35:20,812 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 364 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-03-18 16:35:20,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-18 16:35:20,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-18 16:35:20,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65625) internal successors, (424), 256 states have internal predecessors, (424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:20,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 428 transitions. [2022-03-18 16:35:20,820 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 428 transitions. Word has length 70 [2022-03-18 16:35:20,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:35:20,820 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 428 transitions. [2022-03-18 16:35:20,820 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) [2022-03-18 16:35:20,820 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 428 transitions. [2022-03-18 16:35:20,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-18 16:35:20,821 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:35:20,821 INFO L500 BasicCegarLoop]: trace histogram [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] [2022-03-18 16:35:20,822 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 16:35:20,822 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:35:20,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:35:20,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1233059435, now seen corresponding path program 1 times [2022-03-18 16:35:20,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:35:20,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899268258] [2022-03-18 16:35:20,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:35:20,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:35:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:20,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:35:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:20,938 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:35:20,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:35:20,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899268258] [2022-03-18 16:35:20,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899268258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:35:20,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:35:20,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:35:20,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838856023] [2022-03-18 16:35:20,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:35:20,940 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:35:20,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:35:20,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:35:20,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:35:20,941 INFO L87 Difference]: Start difference. First operand 261 states and 428 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:22,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:24,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:26,904 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 [] [2022-03-18 16:35:27,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:35:27,936 INFO L93 Difference]: Finished difference Result 513 states and 839 transitions. [2022-03-18 16:35:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:35:27,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-18 16:35:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:35:27,938 INFO L225 Difference]: With dead ends: 513 [2022-03-18 16:35:27,938 INFO L226 Difference]: Without dead ends: 278 [2022-03-18 16:35:27,939 INFO L911 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 [2022-03-18 16:35:27,939 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:35:27,940 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-18 16:35:27,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-18 16:35:27,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-18 16:35:27,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65234375) internal successors, (423), 256 states have internal predecessors, (423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 427 transitions. [2022-03-18 16:35:27,946 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 427 transitions. Word has length 83 [2022-03-18 16:35:27,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:35:27,946 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 427 transitions. [2022-03-18 16:35:27,946 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:27,947 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 427 transitions. [2022-03-18 16:35:27,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:35:27,950 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:35:27,950 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:35:27,951 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 16:35:27,951 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:35:27,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:35:27,951 INFO L85 PathProgramCache]: Analyzing trace with hash -522284645, now seen corresponding path program 1 times [2022-03-18 16:35:27,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:35:27,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502706501] [2022-03-18 16:35:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:35:27,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:35:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:35:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:35:28,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:35:28,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502706501] [2022-03-18 16:35:28,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502706501] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:35:28,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:35:28,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:35:28,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135837724] [2022-03-18 16:35:28,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:35:28,061 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:35:28,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:35:28,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:35:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:35:28,062 INFO L87 Difference]: Start difference. First operand 261 states and 427 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) [2022-03-18 16:35:30,857 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 [] [2022-03-18 16:35:33,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:35:33,797 INFO L93 Difference]: Finished difference Result 574 states and 927 transitions. [2022-03-18 16:35:33,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:35:33,797 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 84 [2022-03-18 16:35:33,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:35:33,799 INFO L225 Difference]: With dead ends: 574 [2022-03-18 16:35:33,799 INFO L226 Difference]: Without dead ends: 339 [2022-03-18 16:35:33,799 INFO L911 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 [2022-03-18 16:35:33,800 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 150 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:35:33,800 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 366 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 484 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-18 16:35:33,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-18 16:35:33,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-03-18 16:35:33,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.63671875) internal successors, (419), 256 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:33,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 423 transitions. [2022-03-18 16:35:33,806 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 423 transitions. Word has length 84 [2022-03-18 16:35:33,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:35:33,806 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 423 transitions. [2022-03-18 16:35:33,806 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) [2022-03-18 16:35:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 423 transitions. [2022-03-18 16:35:33,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:35:33,807 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:35:33,807 INFO L500 BasicCegarLoop]: trace histogram [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] [2022-03-18 16:35:33,807 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 16:35:33,807 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:35:33,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:35:33,808 INFO L85 PathProgramCache]: Analyzing trace with hash 725507119, now seen corresponding path program 1 times [2022-03-18 16:35:33,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:35:33,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140477856] [2022-03-18 16:35:33,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:35:33,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:35:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:33,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:35:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:33,927 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:35:33,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:35:33,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140477856] [2022-03-18 16:35:33,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140477856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:35:33,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:35:33,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:35:33,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042871983] [2022-03-18 16:35:33,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:35:33,930 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:35:33,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:35:33,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:35:33,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:35:33,931 INFO L87 Difference]: Start difference. First operand 261 states and 423 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) [2022-03-18 16:35:35,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:37,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:38,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:39,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:35:39,547 INFO L93 Difference]: Finished difference Result 574 states and 920 transitions. [2022-03-18 16:35:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:35:39,547 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 84 [2022-03-18 16:35:39,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:35:39,550 INFO L225 Difference]: With dead ends: 574 [2022-03-18 16:35:39,550 INFO L226 Difference]: Without dead ends: 339 [2022-03-18 16:35:39,550 INFO L911 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 [2022-03-18 16:35:39,552 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 148 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:35:39,552 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 366 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-18 16:35:39,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-18 16:35:39,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-03-18 16:35:39,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.62109375) internal successors, (415), 256 states have internal predecessors, (415), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:39,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 419 transitions. [2022-03-18 16:35:39,563 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 419 transitions. Word has length 84 [2022-03-18 16:35:39,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:35:39,563 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 419 transitions. [2022-03-18 16:35:39,563 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) [2022-03-18 16:35:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 419 transitions. [2022-03-18 16:35:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:35:39,566 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:35:39,566 INFO L500 BasicCegarLoop]: trace histogram [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] [2022-03-18 16:35:39,566 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 16:35:39,567 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:35:39,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:35:39,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1148494374, now seen corresponding path program 1 times [2022-03-18 16:35:39,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:35:39,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042189111] [2022-03-18 16:35:39,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:35:39,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:35:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:39,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:35:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:35:39,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:35:39,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042189111] [2022-03-18 16:35:39,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042189111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:35:39,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:35:39,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:35:39,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227586712] [2022-03-18 16:35:39,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:35:39,697 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:35:39,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:35:39,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:35:39,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:35:39,698 INFO L87 Difference]: Start difference. First operand 261 states and 419 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) [2022-03-18 16:35:41,706 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 [] [2022-03-18 16:35:42,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:35:42,049 INFO L93 Difference]: Finished difference Result 510 states and 821 transitions. [2022-03-18 16:35:42,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:35:42,049 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 84 [2022-03-18 16:35:42,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:35:42,051 INFO L225 Difference]: With dead ends: 510 [2022-03-18 16:35:42,051 INFO L226 Difference]: Without dead ends: 275 [2022-03-18 16:35:42,051 INFO L911 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 [2022-03-18 16:35:42,052 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:35:42,052 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:35:42,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-18 16:35:42,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 261. [2022-03-18 16:35:42,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6171875) internal successors, (414), 256 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 418 transitions. [2022-03-18 16:35:42,057 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 418 transitions. Word has length 84 [2022-03-18 16:35:42,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:35:42,057 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 418 transitions. [2022-03-18 16:35:42,057 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) [2022-03-18 16:35:42,057 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 418 transitions. [2022-03-18 16:35:42,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:35:42,058 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:35:42,058 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:35:42,058 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 16:35:42,058 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:35:42,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:35:42,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1158470119, now seen corresponding path program 1 times [2022-03-18 16:35:42,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:35:42,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180105676] [2022-03-18 16:35:42,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:35:42,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:35:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:42,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:35:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:42,168 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:35:42,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:35:42,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180105676] [2022-03-18 16:35:42,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180105676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:35:42,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:35:42,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:35:42,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671280070] [2022-03-18 16:35:42,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:35:42,172 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:35:42,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:35:42,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:35:42,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:35:42,173 INFO L87 Difference]: Start difference. First operand 261 states and 418 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) [2022-03-18 16:35:43,529 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 [] [2022-03-18 16:35:45,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:46,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:35:46,993 INFO L93 Difference]: Finished difference Result 573 states and 911 transitions. [2022-03-18 16:35:46,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:35:46,993 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 84 [2022-03-18 16:35:46,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:35:46,995 INFO L225 Difference]: With dead ends: 573 [2022-03-18 16:35:46,995 INFO L226 Difference]: Without dead ends: 338 [2022-03-18 16:35:46,995 INFO L911 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 [2022-03-18 16:35:46,996 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 141 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:35:46,996 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 368 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-18 16:35:46,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-18 16:35:47,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-18 16:35:47,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:47,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-03-18 16:35:47,001 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 84 [2022-03-18 16:35:47,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:35:47,001 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-03-18 16:35:47,002 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) [2022-03-18 16:35:47,002 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-03-18 16:35:47,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-18 16:35:47,002 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:35:47,002 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:35:47,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 16:35:47,003 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:35:47,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:35:47,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1113618796, now seen corresponding path program 1 times [2022-03-18 16:35:47,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:35:47,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875002659] [2022-03-18 16:35:47,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:35:47,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:35:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:47,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:35:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:35:47,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:35:47,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875002659] [2022-03-18 16:35:47,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875002659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:35:47,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:35:47,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:35:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546482867] [2022-03-18 16:35:47,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:35:47,106 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:35:47,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:35:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:35:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:35:47,107 INFO L87 Difference]: Start difference. First operand 261 states and 414 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) [2022-03-18 16:35:49,088 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 [] [2022-03-18 16:35:51,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:53,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:53,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:35:53,493 INFO L93 Difference]: Finished difference Result 509 states and 812 transitions. [2022-03-18 16:35:53,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:35:53,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-18 16:35:53,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:35:53,495 INFO L225 Difference]: With dead ends: 509 [2022-03-18 16:35:53,495 INFO L226 Difference]: Without dead ends: 274 [2022-03-18 16:35:53,496 INFO L911 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 [2022-03-18 16:35:53,496 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 22 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:35:53,496 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-18 16:35:53,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-18 16:35:53,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 261. [2022-03-18 16:35:53,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.59765625) internal successors, (409), 256 states have internal predecessors, (409), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:35:53,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 413 transitions. [2022-03-18 16:35:53,502 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 413 transitions. Word has length 85 [2022-03-18 16:35:53,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:35:53,502 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 413 transitions. [2022-03-18 16:35:53,502 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) [2022-03-18 16:35:53,502 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 413 transitions. [2022-03-18 16:35:53,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-18 16:35:53,503 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:35:53,503 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:35:53,503 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 16:35:53,503 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:35:53,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:35:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1037364332, now seen corresponding path program 1 times [2022-03-18 16:35:53,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:35:53,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263196742] [2022-03-18 16:35:53,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:35:53,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:35:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:53,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:35:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:35:53,626 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:35:53,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:35:53,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263196742] [2022-03-18 16:35:53,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263196742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:35:53,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:35:53,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:35:53,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117905635] [2022-03-18 16:35:53,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:35:53,628 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:35:53,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:35:53,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:35:53,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:35:53,628 INFO L87 Difference]: Start difference. First operand 261 states and 413 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) [2022-03-18 16:35:55,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:57,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:35:59,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:00,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:36:00,316 INFO L93 Difference]: Finished difference Result 573 states and 903 transitions. [2022-03-18 16:36:00,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:36:00,316 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 86 [2022-03-18 16:36:00,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:36:00,318 INFO L225 Difference]: With dead ends: 573 [2022-03-18 16:36:00,318 INFO L226 Difference]: Without dead ends: 338 [2022-03-18 16:36:00,318 INFO L911 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 [2022-03-18 16:36:00,319 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 144 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:36:00,319 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 368 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-18 16:36:00,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-18 16:36:00,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-18 16:36:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.58203125) internal successors, (405), 256 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:00,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 409 transitions. [2022-03-18 16:36:00,324 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 409 transitions. Word has length 86 [2022-03-18 16:36:00,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:36:00,324 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 409 transitions. [2022-03-18 16:36:00,324 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) [2022-03-18 16:36:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 409 transitions. [2022-03-18 16:36:00,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-18 16:36:00,325 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:36:00,325 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:36:00,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 16:36:00,325 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:36:00,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:36:00,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1713860263, now seen corresponding path program 1 times [2022-03-18 16:36:00,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:36:00,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568541312] [2022-03-18 16:36:00,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:36:00,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:36:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:00,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:36:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:36:00,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:36:00,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568541312] [2022-03-18 16:36:00,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568541312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:36:00,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:36:00,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:36:00,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847724421] [2022-03-18 16:36:00,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:36:00,407 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:36:00,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:36:00,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:36:00,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:36:00,408 INFO L87 Difference]: Start difference. First operand 261 states and 409 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) [2022-03-18 16:36:01,670 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 [] [2022-03-18 16:36:03,691 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 [] [2022-03-18 16:36:05,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:36:05,203 INFO L93 Difference]: Finished difference Result 499 states and 791 transitions. [2022-03-18 16:36:05,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:36:05,204 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 87 [2022-03-18 16:36:05,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:36:05,205 INFO L225 Difference]: With dead ends: 499 [2022-03-18 16:36:05,205 INFO L226 Difference]: Without dead ends: 264 [2022-03-18 16:36:05,205 INFO L911 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 [2022-03-18 16:36:05,206 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:36:05,206 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-18 16:36:05,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-18 16:36:05,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2022-03-18 16:36:05,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.578125) internal successors, (404), 256 states have internal predecessors, (404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:05,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 408 transitions. [2022-03-18 16:36:05,210 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 408 transitions. Word has length 87 [2022-03-18 16:36:05,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:36:05,210 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 408 transitions. [2022-03-18 16:36:05,210 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) [2022-03-18 16:36:05,210 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 408 transitions. [2022-03-18 16:36:05,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-18 16:36:05,211 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:36:05,211 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:36:05,211 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 16:36:05,211 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:36:05,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:36:05,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1127555326, now seen corresponding path program 1 times [2022-03-18 16:36:05,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:36:05,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168202348] [2022-03-18 16:36:05,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:36:05,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:36:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:05,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:36:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-18 16:36:05,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:36:05,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168202348] [2022-03-18 16:36:05,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168202348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:36:05,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:36:05,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:36:05,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901215161] [2022-03-18 16:36:05,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:36:05,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:36:05,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:36:05,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:36:05,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:36:05,307 INFO L87 Difference]: Start difference. First operand 261 states and 408 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) [2022-03-18 16:36:07,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:09,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:11,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:11,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:36:11,944 INFO L93 Difference]: Finished difference Result 537 states and 846 transitions. [2022-03-18 16:36:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:36:11,945 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 87 [2022-03-18 16:36:11,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:36:11,946 INFO L225 Difference]: With dead ends: 537 [2022-03-18 16:36:11,946 INFO L226 Difference]: Without dead ends: 302 [2022-03-18 16:36:11,946 INFO L911 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 [2022-03-18 16:36:11,947 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 30 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:36:11,947 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 507 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-18 16:36:11,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-18 16:36:11,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-03-18 16:36:11,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5755395683453237) internal successors, (438), 278 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:11,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 442 transitions. [2022-03-18 16:36:11,953 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 442 transitions. Word has length 87 [2022-03-18 16:36:11,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:36:11,953 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 442 transitions. [2022-03-18 16:36:11,953 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) [2022-03-18 16:36:11,953 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 442 transitions. [2022-03-18 16:36:11,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-18 16:36:11,954 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:36:11,954 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:36:11,954 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 16:36:11,954 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:36:11,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:36:11,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1766336105, now seen corresponding path program 1 times [2022-03-18 16:36:11,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:36:11,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598310688] [2022-03-18 16:36:11,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:36:11,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:36:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:12,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:36:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:36:12,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:36:12,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598310688] [2022-03-18 16:36:12,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598310688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:36:12,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:36:12,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:36:12,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340441295] [2022-03-18 16:36:12,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:36:12,042 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:36:12,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:36:12,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:36:12,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:36:12,042 INFO L87 Difference]: Start difference. First operand 283 states and 442 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:14,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:16,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:17,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:36:17,764 INFO L93 Difference]: Finished difference Result 657 states and 1030 transitions. [2022-03-18 16:36:17,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:36:17,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-18 16:36:17,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:36:17,765 INFO L225 Difference]: With dead ends: 657 [2022-03-18 16:36:17,765 INFO L226 Difference]: Without dead ends: 400 [2022-03-18 16:36:17,766 INFO L911 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 [2022-03-18 16:36:17,766 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 142 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:36:17,767 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 368 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-18 16:36:17,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-03-18 16:36:17,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 299. [2022-03-18 16:36:17,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5578231292517006) internal successors, (458), 294 states have internal predecessors, (458), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:17,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 462 transitions. [2022-03-18 16:36:17,772 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 462 transitions. Word has length 100 [2022-03-18 16:36:17,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:36:17,772 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 462 transitions. [2022-03-18 16:36:17,772 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:17,772 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 462 transitions. [2022-03-18 16:36:17,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-18 16:36:17,773 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:36:17,773 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:36:17,773 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 16:36:17,773 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:36:17,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:36:17,774 INFO L85 PathProgramCache]: Analyzing trace with hash 500201960, now seen corresponding path program 1 times [2022-03-18 16:36:17,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:36:17,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807362125] [2022-03-18 16:36:17,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:36:17,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:36:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:17,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:36:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:17,859 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:36:17,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:36:17,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807362125] [2022-03-18 16:36:17,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807362125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:36:17,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:36:17,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:36:17,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786816353] [2022-03-18 16:36:17,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:36:17,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:36:17,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:36:17,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:36:17,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:36:17,860 INFO L87 Difference]: Start difference. First operand 299 states and 462 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) [2022-03-18 16:36:20,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:22,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:23,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:36:23,838 INFO L93 Difference]: Finished difference Result 649 states and 1003 transitions. [2022-03-18 16:36:23,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:36:23,839 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 101 [2022-03-18 16:36:23,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:36:23,840 INFO L225 Difference]: With dead ends: 649 [2022-03-18 16:36:23,840 INFO L226 Difference]: Without dead ends: 376 [2022-03-18 16:36:23,840 INFO L911 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 [2022-03-18 16:36:23,841 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 141 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:36:23,841 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 368 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-18 16:36:23,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-03-18 16:36:23,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 299. [2022-03-18 16:36:23,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5442176870748299) internal successors, (454), 294 states have internal predecessors, (454), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:23,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 458 transitions. [2022-03-18 16:36:23,846 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 458 transitions. Word has length 101 [2022-03-18 16:36:23,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:36:23,847 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 458 transitions. [2022-03-18 16:36:23,847 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) [2022-03-18 16:36:23,847 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 458 transitions. [2022-03-18 16:36:23,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-18 16:36:23,847 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:36:23,848 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2022-03-18 16:36:23,848 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 16:36:23,848 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:36:23,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:36:23,848 INFO L85 PathProgramCache]: Analyzing trace with hash 264152850, now seen corresponding path program 1 times [2022-03-18 16:36:23,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:36:23,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720689629] [2022-03-18 16:36:23,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:36:23,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:36:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:36:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:23,938 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-18 16:36:23,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:36:23,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720689629] [2022-03-18 16:36:23,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720689629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:36:23,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:36:23,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:36:23,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313252433] [2022-03-18 16:36:23,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:36:23,939 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:36:23,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:36:23,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:36:23,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:36:23,940 INFO L87 Difference]: Start difference. First operand 299 states and 458 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:27,797 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 [] [2022-03-18 16:36:28,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:36:28,141 INFO L93 Difference]: Finished difference Result 584 states and 901 transitions. [2022-03-18 16:36:28,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:36:28,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-03-18 16:36:28,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:36:28,142 INFO L225 Difference]: With dead ends: 584 [2022-03-18 16:36:28,142 INFO L226 Difference]: Without dead ends: 311 [2022-03-18 16:36:28,143 INFO L911 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 [2022-03-18 16:36:28,143 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:36:28,144 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 568 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-18 16:36:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-03-18 16:36:28,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2022-03-18 16:36:28,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5408163265306123) internal successors, (453), 294 states have internal predecessors, (453), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:28,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 457 transitions. [2022-03-18 16:36:28,148 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 457 transitions. Word has length 102 [2022-03-18 16:36:28,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:36:28,149 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 457 transitions. [2022-03-18 16:36:28,149 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:28,149 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 457 transitions. [2022-03-18 16:36:28,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-18 16:36:28,149 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:36:28,150 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2022-03-18 16:36:28,150 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 16:36:28,150 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:36:28,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:36:28,150 INFO L85 PathProgramCache]: Analyzing trace with hash -590509467, now seen corresponding path program 1 times [2022-03-18 16:36:28,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:36:28,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891750111] [2022-03-18 16:36:28,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:36:28,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:36:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:28,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:36:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:28,235 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:36:28,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:36:28,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891750111] [2022-03-18 16:36:28,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891750111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:36:28,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:36:28,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:36:28,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500212845] [2022-03-18 16:36:28,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:36:28,236 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:36:28,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:36:28,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:36:28,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:36:28,237 INFO L87 Difference]: Start difference. First operand 299 states and 457 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) [2022-03-18 16:36:29,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:31,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:32,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:33,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:36:33,158 INFO L93 Difference]: Finished difference Result 589 states and 907 transitions. [2022-03-18 16:36:33,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:36:33,158 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 103 [2022-03-18 16:36:33,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:36:33,159 INFO L225 Difference]: With dead ends: 589 [2022-03-18 16:36:33,159 INFO L226 Difference]: Without dead ends: 316 [2022-03-18 16:36:33,160 INFO L911 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 [2022-03-18 16:36:33,160 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 36 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:36:33,160 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 511 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-18 16:36:33,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-03-18 16:36:33,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 299. [2022-03-18 16:36:33,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5374149659863945) internal successors, (452), 294 states have internal predecessors, (452), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:33,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 456 transitions. [2022-03-18 16:36:33,165 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 456 transitions. Word has length 103 [2022-03-18 16:36:33,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:36:33,166 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 456 transitions. [2022-03-18 16:36:33,166 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) [2022-03-18 16:36:33,166 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 456 transitions. [2022-03-18 16:36:33,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-03-18 16:36:33,166 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:36:33,166 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2022-03-18 16:36:33,167 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 16:36:33,167 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:36:33,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:36:33,167 INFO L85 PathProgramCache]: Analyzing trace with hash 708251584, now seen corresponding path program 1 times [2022-03-18 16:36:33,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:36:33,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821048175] [2022-03-18 16:36:33,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:36:33,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:36:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:33,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:36:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:33,284 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:36:33,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:36:33,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821048175] [2022-03-18 16:36:33,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821048175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:36:33,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:36:33,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:36:33,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733870817] [2022-03-18 16:36:33,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:36:33,285 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:36:33,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:36:33,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:36:33,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:36:33,286 INFO L87 Difference]: Start difference. First operand 299 states and 456 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:37,103 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 [] [2022-03-18 16:36:37,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:36:37,446 INFO L93 Difference]: Finished difference Result 579 states and 892 transitions. [2022-03-18 16:36:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:36:37,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2022-03-18 16:36:37,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:36:37,448 INFO L225 Difference]: With dead ends: 579 [2022-03-18 16:36:37,448 INFO L226 Difference]: Without dead ends: 306 [2022-03-18 16:36:37,448 INFO L911 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 [2022-03-18 16:36:37,449 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 26 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:36:37,449 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 525 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 16:36:37,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-03-18 16:36:37,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 299. [2022-03-18 16:36:37,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.534013605442177) internal successors, (451), 294 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:37,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 455 transitions. [2022-03-18 16:36:37,454 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 455 transitions. Word has length 105 [2022-03-18 16:36:37,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:36:37,454 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 455 transitions. [2022-03-18 16:36:37,454 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:37,454 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 455 transitions. [2022-03-18 16:36:37,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-18 16:36:37,455 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:36:37,455 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:36:37,455 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 16:36:37,455 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:36:37,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:36:37,455 INFO L85 PathProgramCache]: Analyzing trace with hash -953511784, now seen corresponding path program 1 times [2022-03-18 16:36:37,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:36:37,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430516697] [2022-03-18 16:36:37,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:36:37,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:36:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:36:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:37,562 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:36:37,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:36:37,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430516697] [2022-03-18 16:36:37,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430516697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:36:37,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:36:37,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:36:37,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411035139] [2022-03-18 16:36:37,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:36:37,563 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:36:37,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:36:37,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:36:37,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:36:37,563 INFO L87 Difference]: Start difference. First operand 299 states and 455 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:38,823 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 [] [2022-03-18 16:36:40,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:42,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:44,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:36:44,229 INFO L93 Difference]: Finished difference Result 659 states and 1007 transitions. [2022-03-18 16:36:44,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:36:44,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-18 16:36:44,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:36:44,231 INFO L225 Difference]: With dead ends: 659 [2022-03-18 16:36:44,231 INFO L226 Difference]: Without dead ends: 386 [2022-03-18 16:36:44,231 INFO L911 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 [2022-03-18 16:36:44,248 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 80 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:36:44,248 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 493 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 496 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-18 16:36:44,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-03-18 16:36:44,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 327. [2022-03-18 16:36:44,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.531055900621118) internal successors, (493), 322 states have internal predecessors, (493), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:44,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 497 transitions. [2022-03-18 16:36:44,253 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 497 transitions. Word has length 109 [2022-03-18 16:36:44,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:36:44,254 INFO L478 AbstractCegarLoop]: Abstraction has 327 states and 497 transitions. [2022-03-18 16:36:44,254 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:44,254 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 497 transitions. [2022-03-18 16:36:44,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-18 16:36:44,254 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:36:44,255 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:36:44,255 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 16:36:44,255 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:36:44,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:36:44,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1008062874, now seen corresponding path program 1 times [2022-03-18 16:36:44,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:36:44,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570153655] [2022-03-18 16:36:44,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:36:44,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:36:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:44,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:36:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:36:44,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:36:44,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570153655] [2022-03-18 16:36:44,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570153655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:36:44,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:36:44,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:36:44,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959492060] [2022-03-18 16:36:44,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:36:44,350 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:36:44,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:36:44,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:36:44,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:36:44,351 INFO L87 Difference]: Start difference. First operand 327 states and 497 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:46,320 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 [] [2022-03-18 16:36:47,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:36:47,409 INFO L93 Difference]: Finished difference Result 745 states and 1138 transitions. [2022-03-18 16:36:47,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:36:47,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-18 16:36:47,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:36:47,411 INFO L225 Difference]: With dead ends: 745 [2022-03-18 16:36:47,411 INFO L226 Difference]: Without dead ends: 444 [2022-03-18 16:36:47,411 INFO L911 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 [2022-03-18 16:36:47,412 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 131 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:36:47,412 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 368 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 16:36:47,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-03-18 16:36:47,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 325. [2022-03-18 16:36:47,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.528125) internal successors, (489), 320 states have internal predecessors, (489), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:47,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 493 transitions. [2022-03-18 16:36:47,418 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 493 transitions. Word has length 109 [2022-03-18 16:36:47,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:36:47,418 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 493 transitions. [2022-03-18 16:36:47,418 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:47,418 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 493 transitions. [2022-03-18 16:36:47,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-18 16:36:47,419 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:36:47,419 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 16:36:47,419 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 16:36:47,419 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:36:47,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:36:47,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1785226605, now seen corresponding path program 1 times [2022-03-18 16:36:47,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:36:47,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538183571] [2022-03-18 16:36:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:36:47,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:36:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:47,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:36:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:47,531 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:36:47,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:36:47,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538183571] [2022-03-18 16:36:47,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538183571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:36:47,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:36:47,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:36:47,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658859587] [2022-03-18 16:36:47,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:36:47,532 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:36:47,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:36:47,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:36:47,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:36:47,532 INFO L87 Difference]: Start difference. First operand 325 states and 493 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) [2022-03-18 16:36:49,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:51,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:53,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:54,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:36:54,130 INFO L93 Difference]: Finished difference Result 709 states and 1079 transitions. [2022-03-18 16:36:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:36:54,130 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 110 [2022-03-18 16:36:54,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:36:54,131 INFO L225 Difference]: With dead ends: 709 [2022-03-18 16:36:54,132 INFO L226 Difference]: Without dead ends: 410 [2022-03-18 16:36:54,132 INFO L911 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 [2022-03-18 16:36:54,132 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 77 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:36:54,133 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 493 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-18 16:36:54,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-03-18 16:36:54,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 354. [2022-03-18 16:36:54,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 349 states have (on average 1.524355300859599) internal successors, (532), 349 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:36:54,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 536 transitions. [2022-03-18 16:36:54,138 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 536 transitions. Word has length 110 [2022-03-18 16:36:54,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:36:54,138 INFO L478 AbstractCegarLoop]: Abstraction has 354 states and 536 transitions. [2022-03-18 16:36:54,138 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) [2022-03-18 16:36:54,138 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 536 transitions. [2022-03-18 16:36:54,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-18 16:36:54,139 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:36:54,139 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:36:54,139 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 16:36:54,139 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:36:54,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:36:54,139 INFO L85 PathProgramCache]: Analyzing trace with hash -863733163, now seen corresponding path program 1 times [2022-03-18 16:36:54,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:36:54,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576373751] [2022-03-18 16:36:54,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:36:54,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:36:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:54,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:36:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:36:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:36:54,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:36:54,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576373751] [2022-03-18 16:36:54,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576373751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:36:54,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:36:54,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:36:54,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770665406] [2022-03-18 16:36:54,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:36:54,235 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:36:54,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:36:54,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:36:54,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:36:54,235 INFO L87 Difference]: Start difference. First operand 354 states and 536 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) [2022-03-18 16:36:55,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:57,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:36:58,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:00,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:00,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:00,982 INFO L93 Difference]: Finished difference Result 735 states and 1117 transitions. [2022-03-18 16:37:00,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:37:00,983 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 110 [2022-03-18 16:37:00,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:00,984 INFO L225 Difference]: With dead ends: 735 [2022-03-18 16:37:00,984 INFO L226 Difference]: Without dead ends: 407 [2022-03-18 16:37:00,991 INFO L911 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 [2022-03-18 16:37:00,991 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 70 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:00,992 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 499 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-18 16:37:00,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-03-18 16:37:00,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 359. [2022-03-18 16:37:00,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 354 states have (on average 1.5225988700564972) internal successors, (539), 354 states have internal predecessors, (539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:00,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 543 transitions. [2022-03-18 16:37:00,997 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 543 transitions. Word has length 110 [2022-03-18 16:37:00,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:00,997 INFO L478 AbstractCegarLoop]: Abstraction has 359 states and 543 transitions. [2022-03-18 16:37:00,998 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) [2022-03-18 16:37:00,998 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 543 transitions. [2022-03-18 16:37:00,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-18 16:37:00,998 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:00,998 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 16:37:00,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 16:37:00,999 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:00,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:00,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1830468437, now seen corresponding path program 1 times [2022-03-18 16:37:00,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:00,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820559394] [2022-03-18 16:37:00,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:00,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:01,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-18 16:37:01,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:01,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820559394] [2022-03-18 16:37:01,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820559394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:01,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:01,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:37:01,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903805579] [2022-03-18 16:37:01,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:01,099 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:37:01,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:01,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:37:01,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:37:01,099 INFO L87 Difference]: Start difference. First operand 359 states and 543 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:02,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:06,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:06,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:06,425 INFO L93 Difference]: Finished difference Result 738 states and 1123 transitions. [2022-03-18 16:37:06,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:37:06,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-18 16:37:06,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:06,426 INFO L225 Difference]: With dead ends: 738 [2022-03-18 16:37:06,427 INFO L226 Difference]: Without dead ends: 405 [2022-03-18 16:37:06,427 INFO L911 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 [2022-03-18 16:37:06,427 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 36 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:06,428 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 603 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-18 16:37:06,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-03-18 16:37:06,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 383. [2022-03-18 16:37:06,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5211640211640212) internal successors, (575), 378 states have internal predecessors, (575), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:06,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 579 transitions. [2022-03-18 16:37:06,433 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 579 transitions. Word has length 110 [2022-03-18 16:37:06,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:06,433 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 579 transitions. [2022-03-18 16:37:06,433 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:06,433 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 579 transitions. [2022-03-18 16:37:06,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-18 16:37:06,434 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:06,434 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:37:06,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 16:37:06,434 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:06,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:06,434 INFO L85 PathProgramCache]: Analyzing trace with hash 352037614, now seen corresponding path program 1 times [2022-03-18 16:37:06,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:06,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719585437] [2022-03-18 16:37:06,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:06,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:06,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:37:06,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:06,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719585437] [2022-03-18 16:37:06,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719585437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:06,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:06,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:37:06,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185750296] [2022-03-18 16:37:06,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:06,549 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:37:06,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:06,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:37:06,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:37:06,551 INFO L87 Difference]: Start difference. First operand 383 states and 579 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:08,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:10,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:12,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:14,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:14,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:14,654 INFO L93 Difference]: Finished difference Result 857 states and 1301 transitions. [2022-03-18 16:37:14,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:37:14,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-18 16:37:14,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:14,656 INFO L225 Difference]: With dead ends: 857 [2022-03-18 16:37:14,656 INFO L226 Difference]: Without dead ends: 500 [2022-03-18 16:37:14,657 INFO L911 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 [2022-03-18 16:37:14,657 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 120 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:14,658 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 346 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-03-18 16:37:14,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-03-18 16:37:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 420. [2022-03-18 16:37:14,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5253012048192771) internal successors, (633), 415 states have internal predecessors, (633), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:14,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 637 transitions. [2022-03-18 16:37:14,668 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 637 transitions. Word has length 122 [2022-03-18 16:37:14,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:14,668 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 637 transitions. [2022-03-18 16:37:14,669 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:14,669 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 637 transitions. [2022-03-18 16:37:14,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-18 16:37:14,670 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:14,670 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:37:14,670 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 16:37:14,670 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:14,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:14,670 INFO L85 PathProgramCache]: Analyzing trace with hash 988315678, now seen corresponding path program 1 times [2022-03-18 16:37:14,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:14,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804113221] [2022-03-18 16:37:14,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:14,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:14,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:14,788 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:37:14,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:14,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804113221] [2022-03-18 16:37:14,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804113221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:14,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:14,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:37:14,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509531727] [2022-03-18 16:37:14,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:14,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:37:14,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:14,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:37:14,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:37:14,790 INFO L87 Difference]: Start difference. First operand 420 states and 637 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:17,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:19,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:21,181 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 [] [2022-03-18 16:37:21,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:21,603 INFO L93 Difference]: Finished difference Result 891 states and 1353 transitions. [2022-03-18 16:37:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:37:21,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-18 16:37:21,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:21,605 INFO L225 Difference]: With dead ends: 891 [2022-03-18 16:37:21,605 INFO L226 Difference]: Without dead ends: 497 [2022-03-18 16:37:21,606 INFO L911 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 [2022-03-18 16:37:21,606 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 119 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:21,606 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 346 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-18 16:37:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-03-18 16:37:21,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 420. [2022-03-18 16:37:21,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5204819277108435) internal successors, (631), 415 states have internal predecessors, (631), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:21,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 635 transitions. [2022-03-18 16:37:21,613 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 635 transitions. Word has length 123 [2022-03-18 16:37:21,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:21,613 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 635 transitions. [2022-03-18 16:37:21,613 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:21,613 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 635 transitions. [2022-03-18 16:37:21,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-18 16:37:21,614 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:21,614 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:37:21,614 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 16:37:21,614 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:21,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:21,614 INFO L85 PathProgramCache]: Analyzing trace with hash 863474282, now seen corresponding path program 1 times [2022-03-18 16:37:21,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:21,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494197233] [2022-03-18 16:37:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:21,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:21,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:21,750 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-18 16:37:21,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:21,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494197233] [2022-03-18 16:37:21,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494197233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:21,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:21,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:37:21,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396809116] [2022-03-18 16:37:21,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:21,751 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:37:21,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:21,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:37:21,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:37:21,752 INFO L87 Difference]: Start difference. First operand 420 states and 635 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) [2022-03-18 16:37:25,377 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 [] [2022-03-18 16:37:25,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:25,803 INFO L93 Difference]: Finished difference Result 860 states and 1303 transitions. [2022-03-18 16:37:25,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:37:25,804 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 126 [2022-03-18 16:37:25,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:25,805 INFO L225 Difference]: With dead ends: 860 [2022-03-18 16:37:25,805 INFO L226 Difference]: Without dead ends: 466 [2022-03-18 16:37:25,806 INFO L911 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 [2022-03-18 16:37:25,806 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 85 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:25,806 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 525 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-18 16:37:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-03-18 16:37:25,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 420. [2022-03-18 16:37:25,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5180722891566265) internal successors, (630), 415 states have internal predecessors, (630), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:25,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 634 transitions. [2022-03-18 16:37:25,815 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 634 transitions. Word has length 126 [2022-03-18 16:37:25,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:25,815 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 634 transitions. [2022-03-18 16:37:25,816 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) [2022-03-18 16:37:25,816 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 634 transitions. [2022-03-18 16:37:25,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-18 16:37:25,816 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:25,816 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:37:25,817 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 16:37:25,817 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:25,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:25,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1702507944, now seen corresponding path program 1 times [2022-03-18 16:37:25,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:25,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31441947] [2022-03-18 16:37:25,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:25,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:25,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:25,946 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-18 16:37:25,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:25,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31441947] [2022-03-18 16:37:25,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31441947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:25,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:25,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:37:25,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618250503] [2022-03-18 16:37:25,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:25,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:37:25,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:25,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:37:25,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:37:25,947 INFO L87 Difference]: Start difference. First operand 420 states and 634 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) [2022-03-18 16:37:28,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:30,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:31,168 INFO L93 Difference]: Finished difference Result 836 states and 1268 transitions. [2022-03-18 16:37:31,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:37:31,168 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 126 [2022-03-18 16:37:31,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:31,169 INFO L225 Difference]: With dead ends: 836 [2022-03-18 16:37:31,169 INFO L226 Difference]: Without dead ends: 442 [2022-03-18 16:37:31,170 INFO L911 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 [2022-03-18 16:37:31,170 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 46 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:31,170 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 603 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 453 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-03-18 16:37:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-03-18 16:37:31,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 420. [2022-03-18 16:37:31,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5156626506024096) internal successors, (629), 415 states have internal predecessors, (629), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:31,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 633 transitions. [2022-03-18 16:37:31,176 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 633 transitions. Word has length 126 [2022-03-18 16:37:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:31,177 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 633 transitions. [2022-03-18 16:37:31,177 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) [2022-03-18 16:37:31,177 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 633 transitions. [2022-03-18 16:37:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-03-18 16:37:31,177 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:31,178 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:37:31,178 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 16:37:31,178 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:31,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:31,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1245189615, now seen corresponding path program 1 times [2022-03-18 16:37:31,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:31,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73004211] [2022-03-18 16:37:31,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:31,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:31,268 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-18 16:37:31,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:31,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73004211] [2022-03-18 16:37:31,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73004211] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:31,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:31,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:37:31,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240249025] [2022-03-18 16:37:31,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:31,269 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:37:31,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:31,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:37:31,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:37:31,270 INFO L87 Difference]: Start difference. First operand 420 states and 633 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:33,307 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 [] [2022-03-18 16:37:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:34,571 INFO L93 Difference]: Finished difference Result 891 states and 1345 transitions. [2022-03-18 16:37:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:37:34,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2022-03-18 16:37:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:34,573 INFO L225 Difference]: With dead ends: 891 [2022-03-18 16:37:34,573 INFO L226 Difference]: Without dead ends: 497 [2022-03-18 16:37:34,574 INFO L911 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 [2022-03-18 16:37:34,574 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 141 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:34,574 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 346 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-18 16:37:34,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-03-18 16:37:34,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 420. [2022-03-18 16:37:34,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.4963855421686747) internal successors, (621), 415 states have internal predecessors, (621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:34,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 625 transitions. [2022-03-18 16:37:34,580 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 625 transitions. Word has length 128 [2022-03-18 16:37:34,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:34,581 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 625 transitions. [2022-03-18 16:37:34,581 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:34,581 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 625 transitions. [2022-03-18 16:37:34,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 16:37:34,582 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:34,582 INFO L500 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] [2022-03-18 16:37:34,582 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-18 16:37:34,582 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:34,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:34,582 INFO L85 PathProgramCache]: Analyzing trace with hash -881988740, now seen corresponding path program 1 times [2022-03-18 16:37:34,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:34,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502771565] [2022-03-18 16:37:34,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:34,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:34,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:34,683 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-18 16:37:34,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:34,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502771565] [2022-03-18 16:37:34,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502771565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:34,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:34,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:37:34,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049859472] [2022-03-18 16:37:34,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:34,684 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:37:34,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:34,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:37:34,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:37:34,684 INFO L87 Difference]: Start difference. First operand 420 states and 625 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:38,521 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 [] [2022-03-18 16:37:39,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:39,004 INFO L93 Difference]: Finished difference Result 891 states and 1329 transitions. [2022-03-18 16:37:39,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:37:39,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-18 16:37:39,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:39,006 INFO L225 Difference]: With dead ends: 891 [2022-03-18 16:37:39,006 INFO L226 Difference]: Without dead ends: 497 [2022-03-18 16:37:39,007 INFO L911 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 [2022-03-18 16:37:39,007 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 131 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:39,008 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-18 16:37:39,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-03-18 16:37:39,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 420. [2022-03-18 16:37:39,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.4819277108433735) internal successors, (615), 415 states have internal predecessors, (615), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:39,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 619 transitions. [2022-03-18 16:37:39,014 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 619 transitions. Word has length 131 [2022-03-18 16:37:39,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:39,014 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 619 transitions. [2022-03-18 16:37:39,015 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:39,015 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 619 transitions. [2022-03-18 16:37:39,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 16:37:39,015 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:39,016 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:37:39,016 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 16:37:39,016 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:39,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:39,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1134050048, now seen corresponding path program 1 times [2022-03-18 16:37:39,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:39,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516101599] [2022-03-18 16:37:39,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:39,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:39,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:37:39,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:39,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516101599] [2022-03-18 16:37:39,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516101599] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:39,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:39,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:37:39,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607495749] [2022-03-18 16:37:39,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:39,109 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:37:39,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:39,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:37:39,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:37:39,109 INFO L87 Difference]: Start difference. First operand 420 states and 619 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:40,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:42,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:44,939 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 [] [2022-03-18 16:37:45,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:45,434 INFO L93 Difference]: Finished difference Result 931 states and 1377 transitions. [2022-03-18 16:37:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:37:45,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-18 16:37:45,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:45,436 INFO L225 Difference]: With dead ends: 931 [2022-03-18 16:37:45,436 INFO L226 Difference]: Without dead ends: 537 [2022-03-18 16:37:45,437 INFO L911 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 [2022-03-18 16:37:45,437 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 111 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:45,437 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 347 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-18 16:37:45,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-03-18 16:37:45,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 463. [2022-03-18 16:37:45,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 1.48471615720524) internal successors, (680), 458 states have internal predecessors, (680), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:45,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 684 transitions. [2022-03-18 16:37:45,444 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 684 transitions. Word has length 131 [2022-03-18 16:37:45,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:45,445 INFO L478 AbstractCegarLoop]: Abstraction has 463 states and 684 transitions. [2022-03-18 16:37:45,445 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:45,445 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 684 transitions. [2022-03-18 16:37:45,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 16:37:45,446 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:45,446 INFO L500 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] [2022-03-18 16:37:45,446 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 16:37:45,446 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:45,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:45,446 INFO L85 PathProgramCache]: Analyzing trace with hash 442867454, now seen corresponding path program 1 times [2022-03-18 16:37:45,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:45,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566256985] [2022-03-18 16:37:45,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:45,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:45,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:45,541 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-18 16:37:45,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:45,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566256985] [2022-03-18 16:37:45,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566256985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:45,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:45,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:37:45,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54626289] [2022-03-18 16:37:45,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:45,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:37:45,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:45,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:37:45,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:37:45,543 INFO L87 Difference]: Start difference. First operand 463 states and 684 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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) [2022-03-18 16:37:47,559 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 [] [2022-03-18 16:37:47,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:47,835 INFO L93 Difference]: Finished difference Result 1292 states and 1928 transitions. [2022-03-18 16:37:47,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:37:47,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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 131 [2022-03-18 16:37:47,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:47,838 INFO L225 Difference]: With dead ends: 1292 [2022-03-18 16:37:47,838 INFO L226 Difference]: Without dead ends: 855 [2022-03-18 16:37:47,839 INFO L911 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 [2022-03-18 16:37:47,839 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:47,839 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 436 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 282 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:37:47,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2022-03-18 16:37:47,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2022-03-18 16:37:47,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 850 states have (on average 1.4823529411764707) internal successors, (1260), 850 states have internal predecessors, (1260), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:47,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1264 transitions. [2022-03-18 16:37:47,851 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1264 transitions. Word has length 131 [2022-03-18 16:37:47,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:47,851 INFO L478 AbstractCegarLoop]: Abstraction has 855 states and 1264 transitions. [2022-03-18 16:37:47,851 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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) [2022-03-18 16:37:47,851 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1264 transitions. [2022-03-18 16:37:47,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 16:37:47,852 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:47,853 INFO L500 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] [2022-03-18 16:37:47,853 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 16:37:47,853 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:47,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:47,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1975617024, now seen corresponding path program 1 times [2022-03-18 16:37:47,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:47,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454129455] [2022-03-18 16:37:47,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:47,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:47,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:47,951 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-03-18 16:37:47,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:47,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454129455] [2022-03-18 16:37:47,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454129455] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:47,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:47,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:37:47,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931889939] [2022-03-18 16:37:47,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:47,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:37:47,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:47,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:37:47,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:37:47,953 INFO L87 Difference]: Start difference. First operand 855 states and 1264 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:49,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:51,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:51,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:51,754 INFO L93 Difference]: Finished difference Result 1711 states and 2535 transitions. [2022-03-18 16:37:51,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:37:51,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-18 16:37:51,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:51,757 INFO L225 Difference]: With dead ends: 1711 [2022-03-18 16:37:51,757 INFO L226 Difference]: Without dead ends: 882 [2022-03-18 16:37:51,758 INFO L911 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 [2022-03-18 16:37:51,758 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:51,758 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-18 16:37:51,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-03-18 16:37:51,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2022-03-18 16:37:51,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 877 states have (on average 1.4766248574686431) internal successors, (1295), 877 states have internal predecessors, (1295), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:51,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1299 transitions. [2022-03-18 16:37:51,769 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1299 transitions. Word has length 131 [2022-03-18 16:37:51,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:51,770 INFO L478 AbstractCegarLoop]: Abstraction has 882 states and 1299 transitions. [2022-03-18 16:37:51,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:51,770 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1299 transitions. [2022-03-18 16:37:51,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 16:37:51,771 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:51,771 INFO L500 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] [2022-03-18 16:37:51,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 16:37:51,772 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:51,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:51,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1857175550, now seen corresponding path program 1 times [2022-03-18 16:37:51,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:51,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493565374] [2022-03-18 16:37:51,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:51,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:51,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:51,846 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-18 16:37:51,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:51,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493565374] [2022-03-18 16:37:51,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493565374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:51,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:51,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:37:51,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178470426] [2022-03-18 16:37:51,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:51,847 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:37:51,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:51,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:37:51,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:37:51,847 INFO L87 Difference]: Start difference. First operand 882 states and 1299 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:52,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:55,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:37:55,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:55,957 INFO L93 Difference]: Finished difference Result 1740 states and 2571 transitions. [2022-03-18 16:37:55,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:37:55,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-18 16:37:55,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:55,960 INFO L225 Difference]: With dead ends: 1740 [2022-03-18 16:37:55,960 INFO L226 Difference]: Without dead ends: 884 [2022-03-18 16:37:55,961 INFO L911 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 [2022-03-18 16:37:55,962 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:55,962 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 16:37:55,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-03-18 16:37:55,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 884. [2022-03-18 16:37:55,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 879 states have (on average 1.4755403868031853) internal successors, (1297), 879 states have internal predecessors, (1297), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:55,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1301 transitions. [2022-03-18 16:37:55,972 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1301 transitions. Word has length 131 [2022-03-18 16:37:55,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:55,972 INFO L478 AbstractCegarLoop]: Abstraction has 884 states and 1301 transitions. [2022-03-18 16:37:55,973 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:55,973 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1301 transitions. [2022-03-18 16:37:55,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-18 16:37:55,974 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:55,974 INFO L500 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] [2022-03-18 16:37:55,974 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 16:37:55,974 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:55,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:55,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1541930600, now seen corresponding path program 1 times [2022-03-18 16:37:55,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:55,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129366352] [2022-03-18 16:37:55,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:55,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:56,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:56,072 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-18 16:37:56,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:56,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129366352] [2022-03-18 16:37:56,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129366352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:56,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:56,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:37:56,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629056688] [2022-03-18 16:37:56,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:56,073 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:37:56,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:56,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:37:56,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:37:56,073 INFO L87 Difference]: Start difference. First operand 884 states and 1301 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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) [2022-03-18 16:37:58,087 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 [] [2022-03-18 16:37:58,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:37:58,353 INFO L93 Difference]: Finished difference Result 2177 states and 3224 transitions. [2022-03-18 16:37:58,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:37:58,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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 133 [2022-03-18 16:37:58,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:37:58,356 INFO L225 Difference]: With dead ends: 2177 [2022-03-18 16:37:58,356 INFO L226 Difference]: Without dead ends: 1321 [2022-03-18 16:37:58,357 INFO L911 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 [2022-03-18 16:37:58,358 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:37:58,358 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 244 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:37:58,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2022-03-18 16:37:58,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1319. [2022-03-18 16:37:58,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1314 states have (on average 1.482496194824962) internal successors, (1948), 1314 states have internal predecessors, (1948), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:58,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1952 transitions. [2022-03-18 16:37:58,377 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1952 transitions. Word has length 133 [2022-03-18 16:37:58,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:37:58,378 INFO L478 AbstractCegarLoop]: Abstraction has 1319 states and 1952 transitions. [2022-03-18 16:37:58,378 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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) [2022-03-18 16:37:58,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1952 transitions. [2022-03-18 16:37:58,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-18 16:37:58,380 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:37:58,380 INFO L500 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] [2022-03-18 16:37:58,380 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 16:37:58,380 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:37:58,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:37:58,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1653660413, now seen corresponding path program 1 times [2022-03-18 16:37:58,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:37:58,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569514586] [2022-03-18 16:37:58,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:37:58,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:37:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:58,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:37:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:37:58,471 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-18 16:37:58,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:37:58,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569514586] [2022-03-18 16:37:58,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569514586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:37:58,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:37:58,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:37:58,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19407701] [2022-03-18 16:37:58,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:37:58,473 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:37:58,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:37:58,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:37:58,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:37:58,474 INFO L87 Difference]: Start difference. First operand 1319 states and 1952 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:37:59,995 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 [] [2022-03-18 16:38:02,019 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 [] [2022-03-18 16:38:02,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:02,290 INFO L93 Difference]: Finished difference Result 1758 states and 2607 transitions. [2022-03-18 16:38:02,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:38:02,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-18 16:38:02,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:02,295 INFO L225 Difference]: With dead ends: 1758 [2022-03-18 16:38:02,295 INFO L226 Difference]: Without dead ends: 1756 [2022-03-18 16:38:02,295 INFO L911 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 [2022-03-18 16:38:02,295 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:02,296 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-03-18 16:38:02,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2022-03-18 16:38:02,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1754. [2022-03-18 16:38:02,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1749 states have (on average 1.486563750714694) internal successors, (2600), 1749 states have internal predecessors, (2600), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:02,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2604 transitions. [2022-03-18 16:38:02,319 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2604 transitions. Word has length 134 [2022-03-18 16:38:02,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:02,319 INFO L478 AbstractCegarLoop]: Abstraction has 1754 states and 2604 transitions. [2022-03-18 16:38:02,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:02,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2604 transitions. [2022-03-18 16:38:02,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-18 16:38:02,321 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:02,321 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:02,321 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 16:38:02,321 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:02,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:02,322 INFO L85 PathProgramCache]: Analyzing trace with hash 746323868, now seen corresponding path program 1 times [2022-03-18 16:38:02,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:02,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629999681] [2022-03-18 16:38:02,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:02,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:02,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 16:38:02,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:02,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629999681] [2022-03-18 16:38:02,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629999681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:02,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:02,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:02,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608083235] [2022-03-18 16:38:02,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:02,406 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:02,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:02,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:02,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:02,407 INFO L87 Difference]: Start difference. First operand 1754 states and 2604 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:05,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:06,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:06,427 INFO L93 Difference]: Finished difference Result 3576 states and 5305 transitions. [2022-03-18 16:38:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:06,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2022-03-18 16:38:06,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:06,432 INFO L225 Difference]: With dead ends: 3576 [2022-03-18 16:38:06,432 INFO L226 Difference]: Without dead ends: 1850 [2022-03-18 16:38:06,434 INFO L911 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 [2022-03-18 16:38:06,434 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 37 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:06,434 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 566 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-18 16:38:06,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2022-03-18 16:38:06,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1754. [2022-03-18 16:38:06,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1749 states have (on average 1.4842767295597483) internal successors, (2596), 1749 states have internal predecessors, (2596), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2600 transitions. [2022-03-18 16:38:06,457 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2600 transitions. Word has length 141 [2022-03-18 16:38:06,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:06,458 INFO L478 AbstractCegarLoop]: Abstraction has 1754 states and 2600 transitions. [2022-03-18 16:38:06,458 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2600 transitions. [2022-03-18 16:38:06,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-18 16:38:06,460 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:06,460 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:06,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 16:38:06,460 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:06,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:06,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2064184321, now seen corresponding path program 1 times [2022-03-18 16:38:06,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:06,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128461948] [2022-03-18 16:38:06,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:06,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:06,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-18 16:38:06,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:06,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128461948] [2022-03-18 16:38:06,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128461948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:06,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:06,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:06,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355622302] [2022-03-18 16:38:06,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:06,571 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:06,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:06,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:06,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:06,572 INFO L87 Difference]: Start difference. First operand 1754 states and 2600 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:09,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:10,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:11,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:11,088 INFO L93 Difference]: Finished difference Result 3739 states and 5531 transitions. [2022-03-18 16:38:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:11,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-18 16:38:11,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:11,093 INFO L225 Difference]: With dead ends: 3739 [2022-03-18 16:38:11,093 INFO L226 Difference]: Without dead ends: 2013 [2022-03-18 16:38:11,094 INFO L911 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 [2022-03-18 16:38:11,095 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 135 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:11,095 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 374 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-18 16:38:11,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2022-03-18 16:38:11,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1754. [2022-03-18 16:38:11,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1749 states have (on average 1.468839336763865) internal successors, (2569), 1749 states have internal predecessors, (2569), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:11,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2573 transitions. [2022-03-18 16:38:11,121 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2573 transitions. Word has length 157 [2022-03-18 16:38:11,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:11,121 INFO L478 AbstractCegarLoop]: Abstraction has 1754 states and 2573 transitions. [2022-03-18 16:38:11,122 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:11,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2573 transitions. [2022-03-18 16:38:11,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-18 16:38:11,124 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:11,124 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:11,124 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 16:38:11,124 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:11,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:11,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1896420028, now seen corresponding path program 1 times [2022-03-18 16:38:11,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:11,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309724846] [2022-03-18 16:38:11,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:11,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:11,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:11,230 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 16:38:11,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:11,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309724846] [2022-03-18 16:38:11,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309724846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:11,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:11,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:11,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94249075] [2022-03-18 16:38:11,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:11,231 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:11,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:11,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:11,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:11,231 INFO L87 Difference]: Start difference. First operand 1754 states and 2573 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:12,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:14,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:16,710 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 [] [2022-03-18 16:38:17,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:17,119 INFO L93 Difference]: Finished difference Result 4055 states and 5953 transitions. [2022-03-18 16:38:17,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:17,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-18 16:38:17,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:17,125 INFO L225 Difference]: With dead ends: 4055 [2022-03-18 16:38:17,125 INFO L226 Difference]: Without dead ends: 2329 [2022-03-18 16:38:17,128 INFO L911 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 [2022-03-18 16:38:17,128 INFO L912 BasicCegarLoop]: 148 mSDtfsCounter, 113 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 42 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:17,128 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 404 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 469 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-18 16:38:17,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2022-03-18 16:38:17,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 1990. [2022-03-18 16:38:17,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1985 states have (on average 1.4619647355163727) internal successors, (2902), 1985 states have internal predecessors, (2902), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:17,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2906 transitions. [2022-03-18 16:38:17,157 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2906 transitions. Word has length 158 [2022-03-18 16:38:17,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:17,157 INFO L478 AbstractCegarLoop]: Abstraction has 1990 states and 2906 transitions. [2022-03-18 16:38:17,157 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:17,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2906 transitions. [2022-03-18 16:38:17,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-18 16:38:17,159 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:17,160 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:17,160 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 16:38:17,160 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:17,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:17,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2051530360, now seen corresponding path program 1 times [2022-03-18 16:38:17,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:17,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876562286] [2022-03-18 16:38:17,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:17,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:17,299 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-18 16:38:17,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:17,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876562286] [2022-03-18 16:38:17,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876562286] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:17,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:17,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:38:17,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896892388] [2022-03-18 16:38:17,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:17,300 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:38:17,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:17,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:38:17,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:38:17,300 INFO L87 Difference]: Start difference. First operand 1990 states and 2906 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:18,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:21,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:22,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:23,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:23,292 INFO L93 Difference]: Finished difference Result 4440 states and 6498 transitions. [2022-03-18 16:38:23,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:38:23,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-18 16:38:23,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:23,298 INFO L225 Difference]: With dead ends: 4440 [2022-03-18 16:38:23,298 INFO L226 Difference]: Without dead ends: 2478 [2022-03-18 16:38:23,300 INFO L911 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 [2022-03-18 16:38:23,300 INFO L912 BasicCegarLoop]: 382 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:23,300 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 576 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 420 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-18 16:38:23,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2022-03-18 16:38:23,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2478. [2022-03-18 16:38:23,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2478 states, 2473 states have (on average 1.4609785685402346) internal successors, (3613), 2473 states have internal predecessors, (3613), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:23,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2478 states to 2478 states and 3617 transitions. [2022-03-18 16:38:23,334 INFO L78 Accepts]: Start accepts. Automaton has 2478 states and 3617 transitions. Word has length 172 [2022-03-18 16:38:23,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:23,335 INFO L478 AbstractCegarLoop]: Abstraction has 2478 states and 3617 transitions. [2022-03-18 16:38:23,335 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:23,335 INFO L276 IsEmpty]: Start isEmpty. Operand 2478 states and 3617 transitions. [2022-03-18 16:38:23,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-18 16:38:23,337 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:23,337 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:23,338 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 16:38:23,338 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:23,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:23,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1995290442, now seen corresponding path program 1 times [2022-03-18 16:38:23,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:23,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612494476] [2022-03-18 16:38:23,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:23,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:23,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:23,447 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 16:38:23,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:23,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612494476] [2022-03-18 16:38:23,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612494476] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:23,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:23,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:38:23,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247972749] [2022-03-18 16:38:23,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:23,448 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:38:23,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:23,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:38:23,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:38:23,449 INFO L87 Difference]: Start difference. First operand 2478 states and 3617 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) [2022-03-18 16:38:25,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:26,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:26,379 INFO L93 Difference]: Finished difference Result 5386 states and 7876 transitions. [2022-03-18 16:38:26,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:38:26,380 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 172 [2022-03-18 16:38:26,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:26,386 INFO L225 Difference]: With dead ends: 5386 [2022-03-18 16:38:26,386 INFO L226 Difference]: Without dead ends: 2936 [2022-03-18 16:38:26,388 INFO L911 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 [2022-03-18 16:38:26,389 INFO L912 BasicCegarLoop]: 378 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:26,389 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 572 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 16:38:26,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2022-03-18 16:38:26,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2936. [2022-03-18 16:38:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2931 states have (on average 1.459911293074036) internal successors, (4279), 2931 states have internal predecessors, (4279), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:26,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 4283 transitions. [2022-03-18 16:38:26,428 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 4283 transitions. Word has length 172 [2022-03-18 16:38:26,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:26,428 INFO L478 AbstractCegarLoop]: Abstraction has 2936 states and 4283 transitions. [2022-03-18 16:38:26,429 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) [2022-03-18 16:38:26,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 4283 transitions. [2022-03-18 16:38:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-03-18 16:38:26,432 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:26,432 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:26,432 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 16:38:26,432 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:26,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:26,432 INFO L85 PathProgramCache]: Analyzing trace with hash 198700486, now seen corresponding path program 1 times [2022-03-18 16:38:26,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:26,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646156733] [2022-03-18 16:38:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:26,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:26,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:26,545 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 188 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-03-18 16:38:26,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:26,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646156733] [2022-03-18 16:38:26,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646156733] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:38:26,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141738812] [2022-03-18 16:38:26,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:26,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:38:26,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:38:26,547 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) [2022-03-18 16:38:26,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 16:38:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:27,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-18 16:38:27,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:38:27,482 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-03-18 16:38:27,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-18 16:38:27,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141738812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:27,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-18 16:38:27,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-03-18 16:38:27,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219855207] [2022-03-18 16:38:27,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:27,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-18 16:38:27,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:27,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-18 16:38:27,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 16:38:27,484 INFO L87 Difference]: Start difference. First operand 2936 states and 4283 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2022-03-18 16:38:27,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:27,559 INFO L93 Difference]: Finished difference Result 6340 states and 9261 transitions. [2022-03-18 16:38:27,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-18 16:38:27,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 178 [2022-03-18 16:38:27,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:27,569 INFO L225 Difference]: With dead ends: 6340 [2022-03-18 16:38:27,569 INFO L226 Difference]: Without dead ends: 3432 [2022-03-18 16:38:27,573 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 16:38:27,573 INFO L912 BasicCegarLoop]: 385 mSDtfsCounter, 132 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:27,573 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 579 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 16:38:27,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2022-03-18 16:38:27,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3430. [2022-03-18 16:38:27,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3425 states have (on average 1.4551824817518249) internal successors, (4984), 3425 states have internal predecessors, (4984), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:27,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 4988 transitions. [2022-03-18 16:38:27,639 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 4988 transitions. Word has length 178 [2022-03-18 16:38:27,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:27,639 INFO L478 AbstractCegarLoop]: Abstraction has 3430 states and 4988 transitions. [2022-03-18 16:38:27,640 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2022-03-18 16:38:27,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 4988 transitions. [2022-03-18 16:38:27,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-03-18 16:38:27,644 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:27,644 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:27,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-18 16:38:27,863 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:38:27,864 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:27,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:27,864 INFO L85 PathProgramCache]: Analyzing trace with hash -237425987, now seen corresponding path program 1 times [2022-03-18 16:38:27,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:27,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66388528] [2022-03-18 16:38:27,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:27,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:27,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-03-18 16:38:27,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:27,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66388528] [2022-03-18 16:38:27,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66388528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:27,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:27,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:27,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593469355] [2022-03-18 16:38:27,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:27,990 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:27,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:27,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:27,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:27,991 INFO L87 Difference]: Start difference. First operand 3430 states and 4988 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:29,739 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 [] [2022-03-18 16:38:31,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:34,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:34,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:34,743 INFO L93 Difference]: Finished difference Result 6986 states and 10157 transitions. [2022-03-18 16:38:34,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:34,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 248 [2022-03-18 16:38:34,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:34,747 INFO L225 Difference]: With dead ends: 6986 [2022-03-18 16:38:34,747 INFO L226 Difference]: Without dead ends: 3584 [2022-03-18 16:38:34,750 INFO L911 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 [2022-03-18 16:38:34,751 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 39 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:34,751 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 572 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 464 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-18 16:38:34,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2022-03-18 16:38:34,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3430. [2022-03-18 16:38:34,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3425 states have (on average 1.4531386861313869) internal successors, (4977), 3425 states have internal predecessors, (4977), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:34,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 4981 transitions. [2022-03-18 16:38:34,798 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 4981 transitions. Word has length 248 [2022-03-18 16:38:34,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:34,799 INFO L478 AbstractCegarLoop]: Abstraction has 3430 states and 4981 transitions. [2022-03-18 16:38:34,799 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 4981 transitions. [2022-03-18 16:38:34,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-03-18 16:38:34,803 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:34,803 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:34,804 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 16:38:34,804 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:34,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:34,804 INFO L85 PathProgramCache]: Analyzing trace with hash 71260117, now seen corresponding path program 1 times [2022-03-18 16:38:34,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:34,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744148634] [2022-03-18 16:38:34,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:34,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:34,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:34,917 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-18 16:38:34,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:34,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744148634] [2022-03-18 16:38:34,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744148634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:34,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:34,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:34,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457407721] [2022-03-18 16:38:34,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:34,917 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:34,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:34,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:34,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:34,918 INFO L87 Difference]: Start difference. First operand 3430 states and 4981 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:37,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:39,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:39,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:39,588 INFO L93 Difference]: Finished difference Result 7301 states and 10570 transitions. [2022-03-18 16:38:39,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:39,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2022-03-18 16:38:39,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:39,595 INFO L225 Difference]: With dead ends: 7301 [2022-03-18 16:38:39,595 INFO L226 Difference]: Without dead ends: 3885 [2022-03-18 16:38:39,599 INFO L911 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 [2022-03-18 16:38:39,600 INFO L912 BasicCegarLoop]: 251 mSDtfsCounter, 43 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:39,600 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 616 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 527 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 16:38:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2022-03-18 16:38:39,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3724. [2022-03-18 16:38:39,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3724 states, 3719 states have (on average 1.4530787846195214) internal successors, (5404), 3719 states have internal predecessors, (5404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:39,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3724 states to 3724 states and 5408 transitions. [2022-03-18 16:38:39,651 INFO L78 Accepts]: Start accepts. Automaton has 3724 states and 5408 transitions. Word has length 255 [2022-03-18 16:38:39,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:39,652 INFO L478 AbstractCegarLoop]: Abstraction has 3724 states and 5408 transitions. [2022-03-18 16:38:39,652 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:39,652 INFO L276 IsEmpty]: Start isEmpty. Operand 3724 states and 5408 transitions. [2022-03-18 16:38:39,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-03-18 16:38:39,657 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:39,657 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:39,657 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-18 16:38:39,657 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:39,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:39,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1807870829, now seen corresponding path program 1 times [2022-03-18 16:38:39,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:39,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780479224] [2022-03-18 16:38:39,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:39,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:39,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:39,801 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-18 16:38:39,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:39,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780479224] [2022-03-18 16:38:39,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780479224] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:39,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:39,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:39,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336132571] [2022-03-18 16:38:39,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:39,802 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:39,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:39,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:39,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:39,802 INFO L87 Difference]: Start difference. First operand 3724 states and 5408 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:43,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:43,644 INFO L93 Difference]: Finished difference Result 7665 states and 11102 transitions. [2022-03-18 16:38:43,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:43,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2022-03-18 16:38:43,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:43,667 INFO L225 Difference]: With dead ends: 7665 [2022-03-18 16:38:43,667 INFO L226 Difference]: Without dead ends: 3969 [2022-03-18 16:38:43,671 INFO L911 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 [2022-03-18 16:38:43,672 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 39 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:43,672 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 533 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-18 16:38:43,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2022-03-18 16:38:43,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3822. [2022-03-18 16:38:43,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3817 states have (on average 1.4524495677233429) internal successors, (5544), 3817 states have internal predecessors, (5544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:43,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 5548 transitions. [2022-03-18 16:38:43,746 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 5548 transitions. Word has length 255 [2022-03-18 16:38:43,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:43,747 INFO L478 AbstractCegarLoop]: Abstraction has 3822 states and 5548 transitions. [2022-03-18 16:38:43,747 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:43,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 5548 transitions. [2022-03-18 16:38:43,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-03-18 16:38:43,751 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:43,751 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 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] [2022-03-18 16:38:43,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-18 16:38:43,752 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:43,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:43,752 INFO L85 PathProgramCache]: Analyzing trace with hash -282117207, now seen corresponding path program 1 times [2022-03-18 16:38:43,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:43,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232631086] [2022-03-18 16:38:43,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:43,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:43,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-18 16:38:43,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:43,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232631086] [2022-03-18 16:38:43,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232631086] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:43,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:43,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:43,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11114085] [2022-03-18 16:38:43,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:43,885 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:43,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:43,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:43,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:43,886 INFO L87 Difference]: Start difference. First operand 3822 states and 5548 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:46,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:48,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:49,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:49,054 INFO L93 Difference]: Finished difference Result 7763 states and 11235 transitions. [2022-03-18 16:38:49,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:49,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 264 [2022-03-18 16:38:49,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:49,060 INFO L225 Difference]: With dead ends: 7763 [2022-03-18 16:38:49,060 INFO L226 Difference]: Without dead ends: 3969 [2022-03-18 16:38:49,064 INFO L911 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 [2022-03-18 16:38:49,064 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 55 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:49,064 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 613 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-18 16:38:49,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2022-03-18 16:38:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3822. [2022-03-18 16:38:49,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3817 states have (on average 1.4506156667539953) internal successors, (5537), 3817 states have internal predecessors, (5537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:49,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 5541 transitions. [2022-03-18 16:38:49,112 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 5541 transitions. Word has length 264 [2022-03-18 16:38:49,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:49,112 INFO L478 AbstractCegarLoop]: Abstraction has 3822 states and 5541 transitions. [2022-03-18 16:38:49,112 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 5541 transitions. [2022-03-18 16:38:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-18 16:38:49,117 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:49,117 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 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] [2022-03-18 16:38:49,117 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-18 16:38:49,117 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:49,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:49,117 INFO L85 PathProgramCache]: Analyzing trace with hash -649946037, now seen corresponding path program 1 times [2022-03-18 16:38:49,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:49,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002835854] [2022-03-18 16:38:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:49,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:49,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:49,264 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-03-18 16:38:49,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:49,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002835854] [2022-03-18 16:38:49,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002835854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:49,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:49,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:49,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026474111] [2022-03-18 16:38:49,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:49,265 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:49,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:49,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:49,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:49,265 INFO L87 Difference]: Start difference. First operand 3822 states and 5541 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:51,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:53,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:55,839 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 [] [2022-03-18 16:38:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:56,275 INFO L93 Difference]: Finished difference Result 7763 states and 11221 transitions. [2022-03-18 16:38:56,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:56,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-03-18 16:38:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:56,281 INFO L225 Difference]: With dead ends: 7763 [2022-03-18 16:38:56,281 INFO L226 Difference]: Without dead ends: 3969 [2022-03-18 16:38:56,285 INFO L911 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 [2022-03-18 16:38:56,285 INFO L912 BasicCegarLoop]: 249 mSDtfsCounter, 51 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:56,285 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 611 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 507 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-03-18 16:38:56,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2022-03-18 16:38:56,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3822. [2022-03-18 16:38:56,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3817 states have (on average 1.4487817657846476) internal successors, (5530), 3817 states have internal predecessors, (5530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:56,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 5534 transitions. [2022-03-18 16:38:56,353 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 5534 transitions. Word has length 267 [2022-03-18 16:38:56,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:56,353 INFO L478 AbstractCegarLoop]: Abstraction has 3822 states and 5534 transitions. [2022-03-18 16:38:56,353 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:56,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 5534 transitions. [2022-03-18 16:38:56,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-18 16:38:56,358 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:56,358 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 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] [2022-03-18 16:38:56,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-18 16:38:56,358 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:56,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:56,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1706677239, now seen corresponding path program 1 times [2022-03-18 16:38:56,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:56,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075475465] [2022-03-18 16:38:56,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:56,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:56,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:56,482 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 397 proven. 75 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-18 16:38:56,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:56,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075475465] [2022-03-18 16:38:56,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075475465] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:38:56,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705798535] [2022-03-18 16:38:56,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:56,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:38:56,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:38:56,484 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) [2022-03-18 16:38:56,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-18 16:38:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:57,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:38:57,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:38:57,318 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:38:57,318 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 [2022-03-18 16:38:57,364 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:38:57,365 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 [2022-03-18 16:38:57,433 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 [2022-03-18 16:38:57,539 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 [2022-03-18 16:38:57,553 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:38:57,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-18 16:38:57,605 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 [2022-03-18 16:38:57,679 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 388 proven. 87 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 16:38:57,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:38:57,977 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-03-18 16:38:57,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705798535] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:38:57,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:38:57,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:38:57,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878553554] [2022-03-18 16:38:57,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:57,978 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:38:57,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:57,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:38:57,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:38:57,979 INFO L87 Difference]: Start difference. First operand 3822 states and 5534 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2022-03-18 16:38:58,997 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 [] [2022-03-18 16:38:59,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:59,300 INFO L93 Difference]: Finished difference Result 8366 states and 12081 transitions. [2022-03-18 16:38:59,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:38:59,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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 267 [2022-03-18 16:38:59,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:59,306 INFO L225 Difference]: With dead ends: 8366 [2022-03-18 16:38:59,306 INFO L226 Difference]: Without dead ends: 4572 [2022-03-18 16:38:59,310 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:38:59,310 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 117 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:59,310 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 392 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-18 16:38:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2022-03-18 16:38:59,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4032. [2022-03-18 16:38:59,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.4363049416439035) internal successors, (5784), 4027 states have internal predecessors, (5784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5788 transitions. [2022-03-18 16:38:59,406 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5788 transitions. Word has length 267 [2022-03-18 16:38:59,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:59,406 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5788 transitions. [2022-03-18 16:38:59,406 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2022-03-18 16:38:59,406 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5788 transitions. [2022-03-18 16:38:59,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-18 16:38:59,412 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:59,412 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 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] [2022-03-18 16:38:59,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-18 16:38:59,623 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,SelfDestructingSolverStorable47 [2022-03-18 16:38:59,623 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:59,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:59,624 INFO L85 PathProgramCache]: Analyzing trace with hash -340767576, now seen corresponding path program 1 times [2022-03-18 16:38:59,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:59,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749851721] [2022-03-18 16:38:59,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:59,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:59,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:59,748 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-03-18 16:38:59,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:59,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749851721] [2022-03-18 16:38:59,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749851721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:59,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:59,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:59,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565323770] [2022-03-18 16:38:59,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:59,749 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:59,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:59,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:59,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:59,749 INFO L87 Difference]: Start difference. First operand 4032 states and 5788 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:02,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:04,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:04,331 INFO L93 Difference]: Finished difference Result 8169 states and 11701 transitions. [2022-03-18 16:39:04,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:04,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-03-18 16:39:04,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:04,334 INFO L225 Difference]: With dead ends: 8169 [2022-03-18 16:39:04,334 INFO L226 Difference]: Without dead ends: 4165 [2022-03-18 16:39:04,338 INFO L911 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 [2022-03-18 16:39:04,338 INFO L912 BasicCegarLoop]: 247 mSDtfsCounter, 48 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:04,338 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 607 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-18 16:39:04,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2022-03-18 16:39:04,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 4032. [2022-03-18 16:39:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.434566674944127) internal successors, (5777), 4027 states have internal predecessors, (5777), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:04,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5781 transitions. [2022-03-18 16:39:04,409 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5781 transitions. Word has length 268 [2022-03-18 16:39:04,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:04,410 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5781 transitions. [2022-03-18 16:39:04,410 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:04,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5781 transitions. [2022-03-18 16:39:04,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-18 16:39:04,414 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:04,414 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 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] [2022-03-18 16:39:04,414 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-18 16:39:04,416 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:04,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:04,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1260303530, now seen corresponding path program 1 times [2022-03-18 16:39:04,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:04,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391667950] [2022-03-18 16:39:04,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:04,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:04,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:04,605 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 401 proven. 78 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-03-18 16:39:04,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:04,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391667950] [2022-03-18 16:39:04,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391667950] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:39:04,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276369654] [2022-03-18 16:39:04,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:04,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:39:04,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:39:04,620 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) [2022-03-18 16:39:04,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-18 16:39:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:05,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:39:05,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:39:05,507 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:39:05,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:39:05,543 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:39:05,543 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 [2022-03-18 16:39:05,598 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 [2022-03-18 16:39:05,704 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 [2022-03-18 16:39:05,718 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:39:05,719 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-18 16:39:05,760 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 [2022-03-18 16:39:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 393 proven. 85 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-03-18 16:39:05,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:39:06,101 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-03-18 16:39:06,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276369654] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:39:06,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:39:06,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:39:06,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476712255] [2022-03-18 16:39:06,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:06,102 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:39:06,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:06,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:39:06,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:39:06,102 INFO L87 Difference]: Start difference. First operand 4032 states and 5781 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2022-03-18 16:39:06,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:06,638 INFO L93 Difference]: Finished difference Result 8485 states and 12134 transitions. [2022-03-18 16:39:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:39:06,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 268 [2022-03-18 16:39:06,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:06,643 INFO L225 Difference]: With dead ends: 8485 [2022-03-18 16:39:06,643 INFO L226 Difference]: Without dead ends: 4481 [2022-03-18 16:39:06,647 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:39:06,648 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 116 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:06,648 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 372 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-18 16:39:06,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2022-03-18 16:39:06,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 4032. [2022-03-18 16:39:06,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.422895455674199) internal successors, (5730), 4027 states have internal predecessors, (5730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5734 transitions. [2022-03-18 16:39:06,708 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5734 transitions. Word has length 268 [2022-03-18 16:39:06,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:06,708 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5734 transitions. [2022-03-18 16:39:06,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2022-03-18 16:39:06,708 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5734 transitions. [2022-03-18 16:39:06,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-03-18 16:39:06,713 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:06,719 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-03-18 16:39:06,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-18 16:39:06,922 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:39:06,922 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:06,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:06,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1155020380, now seen corresponding path program 1 times [2022-03-18 16:39:06,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:06,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117666856] [2022-03-18 16:39:06,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:06,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:07,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:07,038 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-18 16:39:07,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:07,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117666856] [2022-03-18 16:39:07,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117666856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:07,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:07,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:07,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285635067] [2022-03-18 16:39:07,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:07,039 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:07,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:07,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:07,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:07,040 INFO L87 Difference]: Start difference. First operand 4032 states and 5734 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:09,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:10,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:10,831 INFO L93 Difference]: Finished difference Result 8169 states and 11593 transitions. [2022-03-18 16:39:10,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:10,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-03-18 16:39:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:10,834 INFO L225 Difference]: With dead ends: 8169 [2022-03-18 16:39:10,834 INFO L226 Difference]: Without dead ends: 4165 [2022-03-18 16:39:10,838 INFO L911 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 [2022-03-18 16:39:10,838 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 43 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:10,838 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 605 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 16:39:10,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2022-03-18 16:39:10,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 4032. [2022-03-18 16:39:10,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.4211571889744226) internal successors, (5723), 4027 states have internal predecessors, (5723), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5727 transitions. [2022-03-18 16:39:10,892 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5727 transitions. Word has length 277 [2022-03-18 16:39:10,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:10,892 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5727 transitions. [2022-03-18 16:39:10,892 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:10,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5727 transitions. [2022-03-18 16:39:10,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-03-18 16:39:10,897 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:10,897 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-03-18 16:39:10,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-18 16:39:10,897 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:10,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:10,897 INFO L85 PathProgramCache]: Analyzing trace with hash 531738778, now seen corresponding path program 1 times [2022-03-18 16:39:10,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:10,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930985257] [2022-03-18 16:39:10,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:10,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:11,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:11,033 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 432 proven. 90 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-18 16:39:11,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:11,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930985257] [2022-03-18 16:39:11,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930985257] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:39:11,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652942464] [2022-03-18 16:39:11,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:11,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:39:11,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:39:11,034 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) [2022-03-18 16:39:11,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-18 16:39:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:11,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1500 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:39:11,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:39:11,930 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:39:11,931 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 [2022-03-18 16:39:11,969 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:39:11,970 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 [2022-03-18 16:39:12,024 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 20 treesize of output 8 [2022-03-18 16:39:12,135 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 [2022-03-18 16:39:12,150 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:39:12,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-18 16:39:12,208 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 [2022-03-18 16:39:12,277 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 428 proven. 77 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-03-18 16:39:12,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:39:12,552 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-18 16:39:12,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652942464] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:39:12,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:39:12,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:39:12,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012508446] [2022-03-18 16:39:12,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:12,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:39:12,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:12,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:39:12,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:39:12,553 INFO L87 Difference]: Start difference. First operand 4032 states and 5727 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2022-03-18 16:39:13,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:13,050 INFO L93 Difference]: Finished difference Result 8786 states and 12453 transitions. [2022-03-18 16:39:13,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:39:13,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 277 [2022-03-18 16:39:13,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:13,054 INFO L225 Difference]: With dead ends: 8786 [2022-03-18 16:39:13,054 INFO L226 Difference]: Without dead ends: 4782 [2022-03-18 16:39:13,058 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:39:13,058 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 111 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:13,058 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 372 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-18 16:39:13,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4782 states. [2022-03-18 16:39:13,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4782 to 4277. [2022-03-18 16:39:13,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4272 states have (on average 1.413623595505618) internal successors, (6039), 4272 states have internal predecessors, (6039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:13,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6043 transitions. [2022-03-18 16:39:13,119 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6043 transitions. Word has length 277 [2022-03-18 16:39:13,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:13,119 INFO L478 AbstractCegarLoop]: Abstraction has 4277 states and 6043 transitions. [2022-03-18 16:39:13,119 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2022-03-18 16:39:13,119 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6043 transitions. [2022-03-18 16:39:13,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-03-18 16:39:13,124 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:13,124 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-03-18 16:39:13,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-18 16:39:13,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:39:13,325 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:13,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:13,325 INFO L85 PathProgramCache]: Analyzing trace with hash 917834494, now seen corresponding path program 1 times [2022-03-18 16:39:13,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:13,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455009788] [2022-03-18 16:39:13,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:13,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-18 16:39:13,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:13,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455009788] [2022-03-18 16:39:13,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455009788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:13,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:13,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:13,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113039515] [2022-03-18 16:39:13,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:13,464 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:13,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:13,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:13,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:13,464 INFO L87 Difference]: Start difference. First operand 4277 states and 6043 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:15,910 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 [] [2022-03-18 16:39:16,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:16,738 INFO L93 Difference]: Finished difference Result 8645 states and 12197 transitions. [2022-03-18 16:39:16,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:16,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-03-18 16:39:16,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:16,741 INFO L225 Difference]: With dead ends: 8645 [2022-03-18 16:39:16,741 INFO L226 Difference]: Without dead ends: 4396 [2022-03-18 16:39:16,745 INFO L911 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 [2022-03-18 16:39:16,745 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 40 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:16,745 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 601 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 16:39:16,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2022-03-18 16:39:16,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 4277. [2022-03-18 16:39:16,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4272 states have (on average 1.4119850187265917) internal successors, (6032), 4272 states have internal predecessors, (6032), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6036 transitions. [2022-03-18 16:39:16,843 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6036 transitions. Word has length 278 [2022-03-18 16:39:16,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:16,843 INFO L478 AbstractCegarLoop]: Abstraction has 4277 states and 6036 transitions. [2022-03-18 16:39:16,843 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:16,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6036 transitions. [2022-03-18 16:39:16,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-03-18 16:39:16,847 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:16,847 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-03-18 16:39:16,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-18 16:39:16,847 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:16,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:16,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1224025984, now seen corresponding path program 1 times [2022-03-18 16:39:16,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:16,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875071392] [2022-03-18 16:39:16,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:16,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:16,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 436 proven. 93 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-03-18 16:39:16,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:16,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875071392] [2022-03-18 16:39:16,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875071392] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:39:16,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141076341] [2022-03-18 16:39:16,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:16,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:39:16,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:39:16,988 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) [2022-03-18 16:39:16,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-18 16:39:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:17,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:39:17,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:39:17,897 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:39:17,898 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 [2022-03-18 16:39:17,930 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:39:17,931 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 [2022-03-18 16:39:17,985 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 [2022-03-18 16:39:18,085 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 [2022-03-18 16:39:18,098 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:39:18,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-18 16:39:18,147 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 [2022-03-18 16:39:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 433 proven. 75 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-03-18 16:39:18,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:39:18,468 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-18 16:39:18,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141076341] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:39:18,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:39:18,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:39:18,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636589904] [2022-03-18 16:39:18,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:18,469 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:39:18,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:18,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:39:18,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:39:18,469 INFO L87 Difference]: Start difference. First operand 4277 states and 6036 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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) [2022-03-18 16:39:19,684 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 [] [2022-03-18 16:39:19,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:19,988 INFO L93 Difference]: Finished difference Result 8975 states and 12644 transitions. [2022-03-18 16:39:19,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:39:19,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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 278 [2022-03-18 16:39:19,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:19,992 INFO L225 Difference]: With dead ends: 8975 [2022-03-18 16:39:19,992 INFO L226 Difference]: Without dead ends: 4726 [2022-03-18 16:39:19,994 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:39:19,994 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 110 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:19,995 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 372 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-18 16:39:19,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2022-03-18 16:39:20,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 4277. [2022-03-18 16:39:20,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4272 states have (on average 1.4040262172284643) internal successors, (5998), 4272 states have internal predecessors, (5998), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:20,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6002 transitions. [2022-03-18 16:39:20,056 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6002 transitions. Word has length 278 [2022-03-18 16:39:20,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:20,056 INFO L478 AbstractCegarLoop]: Abstraction has 4277 states and 6002 transitions. [2022-03-18 16:39:20,056 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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) [2022-03-18 16:39:20,056 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6002 transitions. [2022-03-18 16:39:20,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-03-18 16:39:20,060 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:20,060 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:20,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-18 16:39:20,261 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:39:20,261 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:20,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:20,261 INFO L85 PathProgramCache]: Analyzing trace with hash 287377312, now seen corresponding path program 1 times [2022-03-18 16:39:20,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:20,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491340145] [2022-03-18 16:39:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:20,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:20,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-03-18 16:39:20,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:20,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491340145] [2022-03-18 16:39:20,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491340145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:20,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:20,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:20,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775045443] [2022-03-18 16:39:20,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:20,374 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:20,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:20,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:20,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:20,374 INFO L87 Difference]: Start difference. First operand 4277 states and 6002 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:22,862 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 [] [2022-03-18 16:39:24,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:24,461 INFO L93 Difference]: Finished difference Result 8695 states and 12198 transitions. [2022-03-18 16:39:24,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:24,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-03-18 16:39:24,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:24,466 INFO L225 Difference]: With dead ends: 8695 [2022-03-18 16:39:24,466 INFO L226 Difference]: Without dead ends: 4446 [2022-03-18 16:39:24,469 INFO L911 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 [2022-03-18 16:39:24,470 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 14 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:24,470 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 565 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-18 16:39:24,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2022-03-18 16:39:24,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 4424. [2022-03-18 16:39:24,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.401674587010636) internal successors, (6194), 4419 states have internal predecessors, (6194), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6198 transitions. [2022-03-18 16:39:24,537 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6198 transitions. Word has length 286 [2022-03-18 16:39:24,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:24,537 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6198 transitions. [2022-03-18 16:39:24,537 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:24,538 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6198 transitions. [2022-03-18 16:39:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-03-18 16:39:24,541 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:24,542 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:24,542 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-18 16:39:24,542 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:24,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:24,542 INFO L85 PathProgramCache]: Analyzing trace with hash -577293523, now seen corresponding path program 1 times [2022-03-18 16:39:24,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:24,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595349017] [2022-03-18 16:39:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:24,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:24,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-03-18 16:39:24,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:24,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595349017] [2022-03-18 16:39:24,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595349017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:24,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:24,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:24,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218149006] [2022-03-18 16:39:24,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:24,699 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:24,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:24,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:24,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:24,700 INFO L87 Difference]: Start difference. First operand 4424 states and 6198 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:26,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:28,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:29,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:31,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:31,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:31,944 INFO L93 Difference]: Finished difference Result 8905 states and 12465 transitions. [2022-03-18 16:39:31,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:31,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-03-18 16:39:31,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:31,949 INFO L225 Difference]: With dead ends: 8905 [2022-03-18 16:39:31,949 INFO L226 Difference]: Without dead ends: 4509 [2022-03-18 16:39:31,953 INFO L911 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 [2022-03-18 16:39:31,953 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 44 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:31,953 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 589 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-03-18 16:39:31,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2022-03-18 16:39:32,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4424. [2022-03-18 16:39:32,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.400090518216791) internal successors, (6187), 4419 states have internal predecessors, (6187), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:32,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6191 transitions. [2022-03-18 16:39:32,042 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6191 transitions. Word has length 286 [2022-03-18 16:39:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:32,042 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6191 transitions. [2022-03-18 16:39:32,042 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6191 transitions. [2022-03-18 16:39:32,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-03-18 16:39:32,046 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:32,046 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:32,046 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-18 16:39:32,046 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:32,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:32,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1838542827, now seen corresponding path program 1 times [2022-03-18 16:39:32,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:32,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015359978] [2022-03-18 16:39:32,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:32,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:32,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-03-18 16:39:32,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:32,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015359978] [2022-03-18 16:39:32,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015359978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:32,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:32,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:32,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324416094] [2022-03-18 16:39:32,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:32,186 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:32,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:32,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:32,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:32,187 INFO L87 Difference]: Start difference. First operand 4424 states and 6191 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:33,915 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 [] [2022-03-18 16:39:35,930 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 [] [2022-03-18 16:39:36,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:36,797 INFO L93 Difference]: Finished difference Result 8905 states and 12451 transitions. [2022-03-18 16:39:36,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:36,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-03-18 16:39:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:36,802 INFO L225 Difference]: With dead ends: 8905 [2022-03-18 16:39:36,802 INFO L226 Difference]: Without dead ends: 4509 [2022-03-18 16:39:36,820 INFO L911 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 [2022-03-18 16:39:36,823 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 42 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:36,824 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 529 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-18 16:39:36,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2022-03-18 16:39:36,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4424. [2022-03-18 16:39:36,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.3985064494229464) internal successors, (6180), 4419 states have internal predecessors, (6180), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:36,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6184 transitions. [2022-03-18 16:39:36,899 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6184 transitions. Word has length 286 [2022-03-18 16:39:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:36,899 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6184 transitions. [2022-03-18 16:39:36,899 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:36,899 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6184 transitions. [2022-03-18 16:39:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-03-18 16:39:36,903 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:36,903 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:36,903 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-18 16:39:36,903 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:36,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:36,904 INFO L85 PathProgramCache]: Analyzing trace with hash -753606596, now seen corresponding path program 1 times [2022-03-18 16:39:36,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:36,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972961712] [2022-03-18 16:39:36,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:36,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:37,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:37,023 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-03-18 16:39:37,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:37,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972961712] [2022-03-18 16:39:37,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972961712] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:37,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:37,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:37,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353490468] [2022-03-18 16:39:37,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:37,024 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:37,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:37,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:37,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:37,025 INFO L87 Difference]: Start difference. First operand 4424 states and 6184 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:38,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:40,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:41,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:42,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:42,245 INFO L93 Difference]: Finished difference Result 8960 states and 12507 transitions. [2022-03-18 16:39:42,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:42,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 287 [2022-03-18 16:39:42,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:42,249 INFO L225 Difference]: With dead ends: 8960 [2022-03-18 16:39:42,249 INFO L226 Difference]: Without dead ends: 4564 [2022-03-18 16:39:42,252 INFO L911 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 [2022-03-18 16:39:42,252 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 36 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:42,252 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 596 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-18 16:39:42,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4564 states. [2022-03-18 16:39:42,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4564 to 4424. [2022-03-18 16:39:42,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.3969223806291016) internal successors, (6173), 4419 states have internal predecessors, (6173), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:42,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6177 transitions. [2022-03-18 16:39:42,315 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6177 transitions. Word has length 287 [2022-03-18 16:39:42,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:42,316 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6177 transitions. [2022-03-18 16:39:42,316 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:42,316 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6177 transitions. [2022-03-18 16:39:42,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-03-18 16:39:42,319 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:42,320 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:42,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-18 16:39:42,320 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:42,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:42,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1717678107, now seen corresponding path program 1 times [2022-03-18 16:39:42,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:42,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172961112] [2022-03-18 16:39:42,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:42,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:42,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:42,491 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-18 16:39:42,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:42,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172961112] [2022-03-18 16:39:42,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172961112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:42,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:42,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:42,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233226083] [2022-03-18 16:39:42,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:42,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:42,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:42,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:42,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:42,493 INFO L87 Difference]: Start difference. First operand 4424 states and 6177 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:44,815 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 [] [2022-03-18 16:39:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:45,959 INFO L93 Difference]: Finished difference Result 8905 states and 12423 transitions. [2022-03-18 16:39:45,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:45,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 295 [2022-03-18 16:39:45,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:45,964 INFO L225 Difference]: With dead ends: 8905 [2022-03-18 16:39:45,964 INFO L226 Difference]: Without dead ends: 4509 [2022-03-18 16:39:45,967 INFO L911 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 [2022-03-18 16:39:45,967 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 27 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:45,967 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 587 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-18 16:39:45,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2022-03-18 16:39:46,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4424. [2022-03-18 16:39:46,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.395338311835257) internal successors, (6166), 4419 states have internal predecessors, (6166), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:46,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6170 transitions. [2022-03-18 16:39:46,065 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6170 transitions. Word has length 295 [2022-03-18 16:39:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:46,065 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6170 transitions. [2022-03-18 16:39:46,066 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:46,066 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6170 transitions. [2022-03-18 16:39:46,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-03-18 16:39:46,070 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:46,070 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:46,070 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-18 16:39:46,070 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:46,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:46,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1630251303, now seen corresponding path program 1 times [2022-03-18 16:39:46,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:46,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896473394] [2022-03-18 16:39:46,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:46,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:46,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:46,305 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-03-18 16:39:46,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:46,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896473394] [2022-03-18 16:39:46,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896473394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:46,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:46,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 16:39:46,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090792575] [2022-03-18 16:39:46,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:46,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 16:39:46,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:46,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 16:39:46,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-18 16:39:46,306 INFO L87 Difference]: Start difference. First operand 4424 states and 6170 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:48,715 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 [] [2022-03-18 16:39:49,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:51,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:53,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:54,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:55,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:55,819 INFO L93 Difference]: Finished difference Result 12537 states and 17516 transitions. [2022-03-18 16:39:55,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-18 16:39:55,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 295 [2022-03-18 16:39:55,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:55,827 INFO L225 Difference]: With dead ends: 12537 [2022-03-18 16:39:55,827 INFO L226 Difference]: Without dead ends: 8141 [2022-03-18 16:39:55,831 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-18 16:39:55,831 INFO L912 BasicCegarLoop]: 301 mSDtfsCounter, 330 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 77 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:55,831 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 1067 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1023 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-03-18 16:39:55,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-03-18 16:39:55,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7831. [2022-03-18 16:39:55,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7831 states, 7826 states have (on average 1.40569895221058) internal successors, (11001), 7826 states have internal predecessors, (11001), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:55,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7831 states to 7831 states and 11005 transitions. [2022-03-18 16:39:55,999 INFO L78 Accepts]: Start accepts. Automaton has 7831 states and 11005 transitions. Word has length 295 [2022-03-18 16:39:55,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:55,999 INFO L478 AbstractCegarLoop]: Abstraction has 7831 states and 11005 transitions. [2022-03-18 16:39:55,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:55,999 INFO L276 IsEmpty]: Start isEmpty. Operand 7831 states and 11005 transitions. [2022-03-18 16:39:56,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-03-18 16:39:56,006 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:56,007 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:56,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-18 16:39:56,007 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:56,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:56,007 INFO L85 PathProgramCache]: Analyzing trace with hash -337722851, now seen corresponding path program 1 times [2022-03-18 16:39:56,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:56,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843523201] [2022-03-18 16:39:56,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:56,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:56,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:56,138 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-18 16:39:56,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:56,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843523201] [2022-03-18 16:39:56,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843523201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:56,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:56,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:56,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438170318] [2022-03-18 16:39:56,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:56,139 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:56,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:56,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:56,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:56,139 INFO L87 Difference]: Start difference. First operand 7831 states and 11005 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:57,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:59,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:02,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:03,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:04,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:04,028 INFO L93 Difference]: Finished difference Result 15790 states and 22166 transitions. [2022-03-18 16:40:04,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:04,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 296 [2022-03-18 16:40:04,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:04,036 INFO L225 Difference]: With dead ends: 15790 [2022-03-18 16:40:04,036 INFO L226 Difference]: Without dead ends: 7931 [2022-03-18 16:40:04,043 INFO L911 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 [2022-03-18 16:40:04,044 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 26 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:04,044 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 585 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-03-18 16:40:04,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7931 states. [2022-03-18 16:40:04,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7931 to 7775. [2022-03-18 16:40:04,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7775 states, 7770 states have (on average 1.4068211068211067) internal successors, (10931), 7770 states have internal predecessors, (10931), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:04,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7775 states to 7775 states and 10935 transitions. [2022-03-18 16:40:04,178 INFO L78 Accepts]: Start accepts. Automaton has 7775 states and 10935 transitions. Word has length 296 [2022-03-18 16:40:04,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:04,178 INFO L478 AbstractCegarLoop]: Abstraction has 7775 states and 10935 transitions. [2022-03-18 16:40:04,178 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:04,178 INFO L276 IsEmpty]: Start isEmpty. Operand 7775 states and 10935 transitions. [2022-03-18 16:40:04,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-03-18 16:40:04,185 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:04,185 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:40:04,185 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-18 16:40:04,185 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:04,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:04,185 INFO L85 PathProgramCache]: Analyzing trace with hash 610039632, now seen corresponding path program 1 times [2022-03-18 16:40:04,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:04,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602733848] [2022-03-18 16:40:04,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:04,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:04,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:04,340 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-03-18 16:40:04,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:04,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602733848] [2022-03-18 16:40:04,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602733848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:04,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:04,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:04,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498734194] [2022-03-18 16:40:04,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:04,341 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:04,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:04,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:04,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:04,342 INFO L87 Difference]: Start difference. First operand 7775 states and 10935 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:08,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:10,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:10,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:10,672 INFO L93 Difference]: Finished difference Result 15678 states and 22026 transitions. [2022-03-18 16:40:10,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:10,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 296 [2022-03-18 16:40:10,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:10,687 INFO L225 Difference]: With dead ends: 15678 [2022-03-18 16:40:10,687 INFO L226 Difference]: Without dead ends: 7931 [2022-03-18 16:40:10,694 INFO L911 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 [2022-03-18 16:40:10,694 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 25 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:10,694 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 583 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 451 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-18 16:40:10,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7931 states. [2022-03-18 16:40:10,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7931 to 7775. [2022-03-18 16:40:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7775 states, 7770 states have (on average 1.405019305019305) internal successors, (10917), 7770 states have internal predecessors, (10917), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7775 states to 7775 states and 10921 transitions. [2022-03-18 16:40:10,854 INFO L78 Accepts]: Start accepts. Automaton has 7775 states and 10921 transitions. Word has length 296 [2022-03-18 16:40:10,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:10,855 INFO L478 AbstractCegarLoop]: Abstraction has 7775 states and 10921 transitions. [2022-03-18 16:40:10,855 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:10,855 INFO L276 IsEmpty]: Start isEmpty. Operand 7775 states and 10921 transitions. [2022-03-18 16:40:10,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-03-18 16:40:10,862 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:10,862 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:40:10,862 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-18 16:40:10,862 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:10,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1008935282, now seen corresponding path program 1 times [2022-03-18 16:40:10,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:10,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805294751] [2022-03-18 16:40:10,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:10,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:11,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:11,019 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-03-18 16:40:11,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:11,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805294751] [2022-03-18 16:40:11,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805294751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:11,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:11,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:11,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899851647] [2022-03-18 16:40:11,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:11,020 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:11,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:11,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:11,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:11,021 INFO L87 Difference]: Start difference. First operand 7775 states and 10921 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:12,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:13,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:15,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:16,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:16,509 INFO L93 Difference]: Finished difference Result 16935 states and 23735 transitions. [2022-03-18 16:40:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:16,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 296 [2022-03-18 16:40:16,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:16,519 INFO L225 Difference]: With dead ends: 16935 [2022-03-18 16:40:16,519 INFO L226 Difference]: Without dead ends: 9188 [2022-03-18 16:40:16,524 INFO L911 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 [2022-03-18 16:40:16,525 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 112 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:16,525 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 378 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-18 16:40:16,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9188 states. [2022-03-18 16:40:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9188 to 8205. [2022-03-18 16:40:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8205 states, 8200 states have (on average 1.3968292682926828) internal successors, (11454), 8200 states have internal predecessors, (11454), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:16,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8205 states to 8205 states and 11458 transitions. [2022-03-18 16:40:16,686 INFO L78 Accepts]: Start accepts. Automaton has 8205 states and 11458 transitions. Word has length 296 [2022-03-18 16:40:16,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:16,686 INFO L478 AbstractCegarLoop]: Abstraction has 8205 states and 11458 transitions. [2022-03-18 16:40:16,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:16,686 INFO L276 IsEmpty]: Start isEmpty. Operand 8205 states and 11458 transitions. [2022-03-18 16:40:16,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-18 16:40:16,709 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:16,709 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:40:16,710 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-18 16:40:16,710 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:16,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:16,710 INFO L85 PathProgramCache]: Analyzing trace with hash -991766968, now seen corresponding path program 1 times [2022-03-18 16:40:16,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:16,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388118187] [2022-03-18 16:40:16,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:16,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:16,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:16,840 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-03-18 16:40:16,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:16,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388118187] [2022-03-18 16:40:16,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388118187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:16,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:16,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:16,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771631282] [2022-03-18 16:40:16,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:16,840 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:16,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:16,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:16,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:16,841 INFO L87 Difference]: Start difference. First operand 8205 states and 11458 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:17,940 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 [] [2022-03-18 16:40:19,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:20,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:21,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:21,355 INFO L93 Difference]: Finished difference Result 16482 states and 23002 transitions. [2022-03-18 16:40:21,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:21,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 297 [2022-03-18 16:40:21,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:21,362 INFO L225 Difference]: With dead ends: 16482 [2022-03-18 16:40:21,363 INFO L226 Difference]: Without dead ends: 8151 [2022-03-18 16:40:21,368 INFO L911 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 [2022-03-18 16:40:21,368 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:21,368 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 575 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-18 16:40:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8151 states. [2022-03-18 16:40:21,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8151 to 8051. [2022-03-18 16:40:21,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8051 states, 8046 states have (on average 1.4026845637583893) internal successors, (11286), 8046 states have internal predecessors, (11286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:21,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8051 states to 8051 states and 11290 transitions. [2022-03-18 16:40:21,519 INFO L78 Accepts]: Start accepts. Automaton has 8051 states and 11290 transitions. Word has length 297 [2022-03-18 16:40:21,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:21,519 INFO L478 AbstractCegarLoop]: Abstraction has 8051 states and 11290 transitions. [2022-03-18 16:40:21,519 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:21,519 INFO L276 IsEmpty]: Start isEmpty. Operand 8051 states and 11290 transitions. [2022-03-18 16:40:21,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-18 16:40:21,526 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:21,526 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:40:21,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-18 16:40:21,526 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:21,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:21,526 INFO L85 PathProgramCache]: Analyzing trace with hash 359618250, now seen corresponding path program 1 times [2022-03-18 16:40:21,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:21,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755150495] [2022-03-18 16:40:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:21,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:21,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-03-18 16:40:21,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:21,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755150495] [2022-03-18 16:40:21,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755150495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:21,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:21,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:21,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231033836] [2022-03-18 16:40:21,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:21,663 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:21,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:21,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:21,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:21,663 INFO L87 Difference]: Start difference. First operand 8051 states and 11290 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:22,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:25,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:27,226 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 [] [2022-03-18 16:40:27,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:27,770 INFO L93 Difference]: Finished difference Result 16181 states and 22673 transitions. [2022-03-18 16:40:27,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:27,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 297 [2022-03-18 16:40:27,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:27,779 INFO L225 Difference]: With dead ends: 16181 [2022-03-18 16:40:27,779 INFO L226 Difference]: Without dead ends: 8158 [2022-03-18 16:40:27,785 INFO L911 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 [2022-03-18 16:40:27,785 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 28 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:27,785 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 533 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 442 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-18 16:40:27,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2022-03-18 16:40:27,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 7974. [2022-03-18 16:40:27,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7974 states, 7969 states have (on average 1.404818672355377) internal successors, (11195), 7969 states have internal predecessors, (11195), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7974 states to 7974 states and 11199 transitions. [2022-03-18 16:40:27,962 INFO L78 Accepts]: Start accepts. Automaton has 7974 states and 11199 transitions. Word has length 297 [2022-03-18 16:40:27,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:27,962 INFO L478 AbstractCegarLoop]: Abstraction has 7974 states and 11199 transitions. [2022-03-18 16:40:27,962 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:27,962 INFO L276 IsEmpty]: Start isEmpty. Operand 7974 states and 11199 transitions. [2022-03-18 16:40:27,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-03-18 16:40:27,968 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:27,969 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:40:27,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-18 16:40:27,969 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:27,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:27,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1389008189, now seen corresponding path program 1 times [2022-03-18 16:40:27,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:27,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963315805] [2022-03-18 16:40:27,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:27,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:28,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:28,108 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-03-18 16:40:28,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:28,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963315805] [2022-03-18 16:40:28,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963315805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:28,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:28,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:28,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153079045] [2022-03-18 16:40:28,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:28,108 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:28,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:28,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:28,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:28,109 INFO L87 Difference]: Start difference. First operand 7974 states and 11199 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:29,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:31,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:32,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:33,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:33,318 INFO L93 Difference]: Finished difference Result 16066 states and 22553 transitions. [2022-03-18 16:40:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:33,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 305 [2022-03-18 16:40:33,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:33,327 INFO L225 Difference]: With dead ends: 16066 [2022-03-18 16:40:33,327 INFO L226 Difference]: Without dead ends: 8120 [2022-03-18 16:40:33,333 INFO L911 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 [2022-03-18 16:40:33,334 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 55 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:33,334 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 580 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-18 16:40:33,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8120 states. [2022-03-18 16:40:33,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8120 to 7974. [2022-03-18 16:40:33,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7974 states, 7969 states have (on average 1.4040657547998494) internal successors, (11189), 7969 states have internal predecessors, (11189), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7974 states to 7974 states and 11193 transitions. [2022-03-18 16:40:33,494 INFO L78 Accepts]: Start accepts. Automaton has 7974 states and 11193 transitions. Word has length 305 [2022-03-18 16:40:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:33,494 INFO L478 AbstractCegarLoop]: Abstraction has 7974 states and 11193 transitions. [2022-03-18 16:40:33,494 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:33,495 INFO L276 IsEmpty]: Start isEmpty. Operand 7974 states and 11193 transitions. [2022-03-18 16:40:33,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-03-18 16:40:33,501 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:33,501 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:40:33,501 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-18 16:40:33,501 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:33,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:33,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1304608474, now seen corresponding path program 1 times [2022-03-18 16:40:33,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:33,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9179608] [2022-03-18 16:40:33,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:33,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:33,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-03-18 16:40:33,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:33,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9179608] [2022-03-18 16:40:33,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9179608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:33,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:33,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 16:40:33,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457943823] [2022-03-18 16:40:33,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:33,643 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 16:40:33,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:33,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 16:40:33,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:40:33,643 INFO L87 Difference]: Start difference. First operand 7974 states and 11193 transitions. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 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) [2022-03-18 16:40:36,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:38,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:40,389 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 [] [2022-03-18 16:40:40,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:40,990 INFO L93 Difference]: Finished difference Result 17000 states and 23790 transitions. [2022-03-18 16:40:40,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 16:40:40,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 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 307 [2022-03-18 16:40:40,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:41,000 INFO L225 Difference]: With dead ends: 17000 [2022-03-18 16:40:41,000 INFO L226 Difference]: Without dead ends: 9054 [2022-03-18 16:40:41,007 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-18 16:40:41,007 INFO L912 BasicCegarLoop]: 230 mSDtfsCounter, 37 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:41,007 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 708 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 609 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-03-18 16:40:41,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9054 states. [2022-03-18 16:40:41,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9054 to 8451. [2022-03-18 16:40:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8451 states, 8446 states have (on average 1.4016102296945299) internal successors, (11838), 8446 states have internal predecessors, (11838), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:41,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8451 states to 8451 states and 11842 transitions. [2022-03-18 16:40:41,196 INFO L78 Accepts]: Start accepts. Automaton has 8451 states and 11842 transitions. Word has length 307 [2022-03-18 16:40:41,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:41,196 INFO L478 AbstractCegarLoop]: Abstraction has 8451 states and 11842 transitions. [2022-03-18 16:40:41,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 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) [2022-03-18 16:40:41,197 INFO L276 IsEmpty]: Start isEmpty. Operand 8451 states and 11842 transitions. [2022-03-18 16:40:41,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-03-18 16:40:41,205 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:41,205 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:40:41,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-18 16:40:41,205 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:41,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:41,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1423049948, now seen corresponding path program 1 times [2022-03-18 16:40:41,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:41,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911026803] [2022-03-18 16:40:41,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:41,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:41,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:41,378 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-03-18 16:40:41,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:41,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911026803] [2022-03-18 16:40:41,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911026803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:41,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:41,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:41,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493642203] [2022-03-18 16:40:41,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:41,379 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:41,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:41,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:41,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:41,380 INFO L87 Difference]: Start difference. First operand 8451 states and 11842 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) [2022-03-18 16:40:42,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:44,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:45,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:47,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:40:48,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:48,133 INFO L93 Difference]: Finished difference Result 17760 states and 24827 transitions. [2022-03-18 16:40:48,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:48,133 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 307 [2022-03-18 16:40:48,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:48,141 INFO L225 Difference]: With dead ends: 17760 [2022-03-18 16:40:48,141 INFO L226 Difference]: Without dead ends: 9337 [2022-03-18 16:40:48,147 INFO L911 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 [2022-03-18 16:40:48,147 INFO L912 BasicCegarLoop]: 158 mSDtfsCounter, 123 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:48,147 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 423 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-18 16:40:48,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9337 states. [2022-03-18 16:40:48,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9337 to 8451. [2022-03-18 16:40:48,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8451 states, 8446 states have (on average 1.3798247691214776) internal successors, (11654), 8446 states have internal predecessors, (11654), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:48,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8451 states to 8451 states and 11658 transitions. [2022-03-18 16:40:48,346 INFO L78 Accepts]: Start accepts. Automaton has 8451 states and 11658 transitions. Word has length 307 [2022-03-18 16:40:48,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:48,346 INFO L478 AbstractCegarLoop]: Abstraction has 8451 states and 11658 transitions. [2022-03-18 16:40:48,346 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) [2022-03-18 16:40:48,346 INFO L276 IsEmpty]: Start isEmpty. Operand 8451 states and 11658 transitions. [2022-03-18 16:40:48,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-03-18 16:40:48,352 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:48,352 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:40:48,352 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-18 16:40:48,352 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:48,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:48,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1793808091, now seen corresponding path program 1 times [2022-03-18 16:40:48,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:48,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895076570] [2022-03-18 16:40:48,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:48,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:48,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:48,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 583 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-03-18 16:40:48,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:48,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895076570] [2022-03-18 16:40:48,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895076570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:48,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:48,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:48,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751078371] [2022-03-18 16:40:48,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:48,491 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:48,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:48,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:48,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:48,491 INFO L87 Difference]: Start difference. First operand 8451 states and 11658 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:51,670 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 [] [2022-03-18 16:40:53,503 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 [] [2022-03-18 16:40:54,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:54,057 INFO L93 Difference]: Finished difference Result 16944 states and 23357 transitions. [2022-03-18 16:40:54,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:54,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 308 [2022-03-18 16:40:54,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:54,067 INFO L225 Difference]: With dead ends: 16944 [2022-03-18 16:40:54,067 INFO L226 Difference]: Without dead ends: 8521 [2022-03-18 16:40:54,074 INFO L911 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 [2022-03-18 16:40:54,074 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 33 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:54,074 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 527 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-03-18 16:40:54,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8521 states. [2022-03-18 16:40:54,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8521 to 8425. [2022-03-18 16:40:54,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8425 states, 8420 states have (on average 1.378622327790974) internal successors, (11608), 8420 states have internal predecessors, (11608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8425 states to 8425 states and 11612 transitions. [2022-03-18 16:40:54,266 INFO L78 Accepts]: Start accepts. Automaton has 8425 states and 11612 transitions. Word has length 308 [2022-03-18 16:40:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:54,266 INFO L478 AbstractCegarLoop]: Abstraction has 8425 states and 11612 transitions. [2022-03-18 16:40:54,266 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand 8425 states and 11612 transitions. [2022-03-18 16:40:54,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-03-18 16:40:54,273 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:54,274 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:40:54,274 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-18 16:40:54,274 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:54,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:54,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1422094816, now seen corresponding path program 1 times [2022-03-18 16:40:54,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:54,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975496995] [2022-03-18 16:40:54,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:54,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:54,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:54,402 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-18 16:40:54,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:54,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975496995] [2022-03-18 16:40:54,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975496995] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:54,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:54,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:54,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510325098] [2022-03-18 16:40:54,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:54,402 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:54,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:54,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:54,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:54,403 INFO L87 Difference]: Start difference. First operand 8425 states and 11612 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:57,316 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 [] [2022-03-18 16:40:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:58,182 INFO L93 Difference]: Finished difference Result 16885 states and 23258 transitions. [2022-03-18 16:40:58,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:58,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 318 [2022-03-18 16:40:58,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:58,190 INFO L225 Difference]: With dead ends: 16885 [2022-03-18 16:40:58,191 INFO L226 Difference]: Without dead ends: 8448 [2022-03-18 16:40:58,197 INFO L911 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 [2022-03-18 16:40:58,197 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 15 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:58,197 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 565 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-18 16:40:58,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8448 states. [2022-03-18 16:40:58,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8448 to 8091. [2022-03-18 16:40:58,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8091 states, 8086 states have (on average 1.3796685629483056) internal successors, (11156), 8086 states have internal predecessors, (11156), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:58,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8091 states to 8091 states and 11160 transitions. [2022-03-18 16:40:58,378 INFO L78 Accepts]: Start accepts. Automaton has 8091 states and 11160 transitions. Word has length 318 [2022-03-18 16:40:58,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:58,379 INFO L478 AbstractCegarLoop]: Abstraction has 8091 states and 11160 transitions. [2022-03-18 16:40:58,379 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:58,379 INFO L276 IsEmpty]: Start isEmpty. Operand 8091 states and 11160 transitions. [2022-03-18 16:40:58,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-03-18 16:40:58,387 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:58,387 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:40:58,387 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-18 16:40:58,387 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:58,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1471934713, now seen corresponding path program 1 times [2022-03-18 16:40:58,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:58,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431097333] [2022-03-18 16:40:58,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:58,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:59,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 225 proven. 669 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:40:59,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:59,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431097333] [2022-03-18 16:40:59,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431097333] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:40:59,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040523042] [2022-03-18 16:40:59,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:59,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:40:59,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:40:59,790 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) [2022-03-18 16:40:59,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-18 16:41:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:41:00,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 123 conjunts are in the unsatisfiable core [2022-03-18 16:41:00,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:41:01,018 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:41:01,019 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 [2022-03-18 16:41:01,159 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-03-18 16:41:01,159 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 42 treesize of output 38 [2022-03-18 16:41:01,193 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-03-18 16:41:01,193 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 33 treesize of output 26 [2022-03-18 16:41:01,262 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 [2022-03-18 16:41:01,266 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 [2022-03-18 16:41:01,282 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-18 16:41:01,282 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 [2022-03-18 16:41:01,307 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:41:01,307 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 [2022-03-18 16:41:01,366 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 [2022-03-18 16:41:01,372 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 [2022-03-18 16:41:01,423 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-18 16:41:01,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-03-18 16:41:01,441 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-18 16:41:01,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-03-18 16:41:01,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:01,473 INFO L356 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-03-18 16:41:01,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 54 [2022-03-18 16:41:01,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:01,609 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 127 treesize of output 114 [2022-03-18 16:41:01,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:01,615 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 127 treesize of output 114 [2022-03-18 16:41:01,656 INFO L356 Elim1Store]: treesize reduction 246, result has 22.4 percent of original size [2022-03-18 16:41:01,657 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 10 case distinctions, treesize of input 127 treesize of output 145 [2022-03-18 16:41:02,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:02,916 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 140 treesize of output 121 [2022-03-18 16:41:02,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:02,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:02,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:02,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:02,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:02,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:02,951 INFO L356 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-03-18 16:41:02,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 145 treesize of output 149 [2022-03-18 16:41:02,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:02,959 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 156 treesize of output 137 [2022-03-18 16:41:04,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,784 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 [2022-03-18 16:41:04,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,818 INFO L356 Elim1Store]: treesize reduction 183, result has 10.3 percent of original size [2022-03-18 16:41:04,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 77 treesize of output 73 [2022-03-18 16:41:04,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,822 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 [2022-03-18 16:41:04,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,921 INFO L356 Elim1Store]: treesize reduction 131, result has 25.6 percent of original size [2022-03-18 16:41:04,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 84 [2022-03-18 16:41:04,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,926 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 81 treesize of output 68 [2022-03-18 16:41:04,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:04,930 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 81 treesize of output 68 [2022-03-18 16:41:05,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:05,659 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-18 16:41:05,659 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 161 treesize of output 156 [2022-03-18 16:41:05,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:05,695 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-18 16:41:05,695 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 138 treesize of output 133 [2022-03-18 16:41:05,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:05,763 INFO L356 Elim1Store]: treesize reduction 70, result has 53.3 percent of original size [2022-03-18 16:41:05,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 96 [2022-03-18 16:41:17,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,077 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 231 treesize of output 207 [2022-03-18 16:41:17,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,113 INFO L356 Elim1Store]: treesize reduction 111, result has 7.5 percent of original size [2022-03-18 16:41:17,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 231 treesize of output 228 [2022-03-18 16:41:17,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:41:17,128 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 231 treesize of output 207 [2022-03-18 16:44:02,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:02,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:02,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:02,532 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 226 treesize of output 198 [2022-03-18 16:44:02,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:02,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:02,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:02,538 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 226 treesize of output 198 [2022-03-18 16:44:02,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:02,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:02,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:02,556 INFO L356 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-03-18 16:44:02,556 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 226 treesize of output 219 [2022-03-18 16:44:06,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:06,359 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 190 treesize of output 130 [2022-03-18 16:44:06,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:06,363 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 140 treesize of output 86 [2022-03-18 16:44:06,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:06,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:06,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:06,392 INFO L356 Elim1Store]: treesize reduction 150, result has 15.7 percent of original size [2022-03-18 16:44:06,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 62 [2022-03-18 16:44:06,469 INFO L356 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2022-03-18 16:44:06,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 47 [2022-03-18 16:44:06,650 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-18 16:44:06,650 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 38 treesize of output 14 [2022-03-18 16:44:06,691 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 321 proven. 573 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:44:06,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:44:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 582 proven. 140 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-18 16:44:10,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040523042] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 16:44:10,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-18 16:44:10,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25, 13] total 52 [2022-03-18 16:44:10,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277108420] [2022-03-18 16:44:10,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-18 16:44:10,168 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-03-18 16:44:10,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:10,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-03-18 16:44:10,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=2292, Unknown=0, NotChecked=0, Total=2652 [2022-03-18 16:44:10,169 INFO L87 Difference]: Start difference. First operand 8091 states and 11160 transitions. Second operand has 52 states, 52 states have (on average 13.038461538461538) internal successors, (678), 51 states have internal predecessors, (678), 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) [2022-03-18 16:44:11,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:13,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:16,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:18,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:20,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:22,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:24,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:25,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:02,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:02,548 INFO L93 Difference]: Finished difference Result 60601 states and 82481 transitions. [2022-03-18 16:45:02,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 304 states. [2022-03-18 16:45:02,549 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 13.038461538461538) internal successors, (678), 51 states have internal predecessors, (678), 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 324 [2022-03-18 16:45:02,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:02,609 INFO L225 Difference]: With dead ends: 60601 [2022-03-18 16:45:02,610 INFO L226 Difference]: Without dead ends: 52538 [2022-03-18 16:45:02,626 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1074 GetRequests, 748 SyntacticMatches, 8 SemanticMatches, 318 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42882 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=11076, Invalid=91004, Unknown=0, NotChecked=0, Total=102080 [2022-03-18 16:45:02,626 INFO L912 BasicCegarLoop]: 849 mSDtfsCounter, 6110 mSDsluCounter, 18342 mSDsCounter, 0 mSdLazyCounter, 18316 mSolverCounterSat, 1019 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6110 SdHoareTripleChecker+Valid, 19191 SdHoareTripleChecker+Invalid, 29822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1019 IncrementalHoareTripleChecker+Valid, 18316 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 10484 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:02,626 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [6110 Valid, 19191 Invalid, 29822 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1019 Valid, 18316 Invalid, 3 Unknown, 10484 Unchecked, 31.7s Time] [2022-03-18 16:45:02,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52538 states. [2022-03-18 16:45:03,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52538 to 26203. [2022-03-18 16:45:03,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26203 states, 26198 states have (on average 1.3868615924879761) internal successors, (36333), 26198 states have internal predecessors, (36333), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:03,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26203 states to 26203 states and 36337 transitions. [2022-03-18 16:45:03,616 INFO L78 Accepts]: Start accepts. Automaton has 26203 states and 36337 transitions. Word has length 324 [2022-03-18 16:45:03,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:03,617 INFO L478 AbstractCegarLoop]: Abstraction has 26203 states and 36337 transitions. [2022-03-18 16:45:03,617 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 13.038461538461538) internal successors, (678), 51 states have internal predecessors, (678), 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) [2022-03-18 16:45:03,617 INFO L276 IsEmpty]: Start isEmpty. Operand 26203 states and 36337 transitions. [2022-03-18 16:45:03,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-03-18 16:45:03,632 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:03,633 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:03,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-18 16:45:03,833 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:45:03,833 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:03,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:03,834 INFO L85 PathProgramCache]: Analyzing trace with hash -81544028, now seen corresponding path program 1 times [2022-03-18 16:45:03,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:03,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782130320] [2022-03-18 16:45:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:03,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:03,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-03-18 16:45:03,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:03,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782130320] [2022-03-18 16:45:03,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782130320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:45:03,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:45:03,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:45:03,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699780333] [2022-03-18 16:45:03,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:03,976 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:45:03,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:03,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:45:03,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:45:03,976 INFO L87 Difference]: Start difference. First operand 26203 states and 36337 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:06,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:08,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:10,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:11,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:11,465 INFO L93 Difference]: Finished difference Result 52507 states and 72776 transitions. [2022-03-18 16:45:11,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:45:11,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2022-03-18 16:45:11,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:11,491 INFO L225 Difference]: With dead ends: 52507 [2022-03-18 16:45:11,491 INFO L226 Difference]: Without dead ends: 26332 [2022-03-18 16:45:11,512 INFO L911 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 [2022-03-18 16:45:11,513 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 36 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:11,513 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 523 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 430 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-18 16:45:11,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26332 states. [2022-03-18 16:45:12,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26332 to 26203. [2022-03-18 16:45:12,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26203 states, 26198 states have (on average 1.3849530498511338) internal successors, (36283), 26198 states have internal predecessors, (36283), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26203 states to 26203 states and 36287 transitions. [2022-03-18 16:45:12,434 INFO L78 Accepts]: Start accepts. Automaton has 26203 states and 36287 transitions. Word has length 324 [2022-03-18 16:45:12,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:12,434 INFO L478 AbstractCegarLoop]: Abstraction has 26203 states and 36287 transitions. [2022-03-18 16:45:12,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:12,434 INFO L276 IsEmpty]: Start isEmpty. Operand 26203 states and 36287 transitions. [2022-03-18 16:45:12,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-03-18 16:45:12,450 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:12,450 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:12,450 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-18 16:45:12,450 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:12,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:12,451 INFO L85 PathProgramCache]: Analyzing trace with hash -2050238848, now seen corresponding path program 1 times [2022-03-18 16:45:12,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:12,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745006631] [2022-03-18 16:45:12,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:12,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:12,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 688 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-03-18 16:45:12,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:12,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745006631] [2022-03-18 16:45:12,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745006631] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:45:12,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:45:12,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:45:12,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087763639] [2022-03-18 16:45:12,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:12,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:45:12,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:12,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:45:12,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:45:12,590 INFO L87 Difference]: Start difference. First operand 26203 states and 36287 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:14,270 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 [] [2022-03-18 16:45:16,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:18,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:20,263 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 [] [2022-03-18 16:45:21,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:21,598 INFO L93 Difference]: Finished difference Result 53780 states and 74368 transitions. [2022-03-18 16:45:21,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:45:21,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 325 [2022-03-18 16:45:21,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:21,630 INFO L225 Difference]: With dead ends: 53780 [2022-03-18 16:45:21,630 INFO L226 Difference]: Without dead ends: 27605 [2022-03-18 16:45:21,647 INFO L911 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 [2022-03-18 16:45:21,648 INFO L912 BasicCegarLoop]: 134 mSDtfsCounter, 125 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:21,648 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 376 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 466 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-03-18 16:45:21,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27605 states. [2022-03-18 16:45:22,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27605 to 26203. [2022-03-18 16:45:22,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26203 states, 26198 states have (on average 1.3614779754179709) internal successors, (35668), 26198 states have internal predecessors, (35668), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:22,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26203 states to 26203 states and 35672 transitions. [2022-03-18 16:45:22,507 INFO L78 Accepts]: Start accepts. Automaton has 26203 states and 35672 transitions. Word has length 325 [2022-03-18 16:45:22,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:22,507 INFO L478 AbstractCegarLoop]: Abstraction has 26203 states and 35672 transitions. [2022-03-18 16:45:22,507 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:22,507 INFO L276 IsEmpty]: Start isEmpty. Operand 26203 states and 35672 transitions. [2022-03-18 16:45:22,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-18 16:45:22,523 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:22,523 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:22,523 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-18 16:45:22,523 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:22,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:22,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1862436375, now seen corresponding path program 1 times [2022-03-18 16:45:22,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:22,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973489847] [2022-03-18 16:45:22,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:22,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:22,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 698 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-03-18 16:45:22,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:22,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973489847] [2022-03-18 16:45:22,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973489847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:45:22,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:45:22,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:45:22,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419334929] [2022-03-18 16:45:22,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:22,682 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:45:22,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:22,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:45:22,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:45:22,682 INFO L87 Difference]: Start difference. First operand 26203 states and 35672 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:25,559 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 [] [2022-03-18 16:45:28,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:28,229 INFO L93 Difference]: Finished difference Result 53938 states and 73341 transitions. [2022-03-18 16:45:28,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:45:28,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2022-03-18 16:45:28,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:28,264 INFO L225 Difference]: With dead ends: 53938 [2022-03-18 16:45:28,264 INFO L226 Difference]: Without dead ends: 27723 [2022-03-18 16:45:28,283 INFO L911 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 [2022-03-18 16:45:28,284 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 124 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:28,284 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 378 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-18 16:45:28,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27723 states. [2022-03-18 16:45:29,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27723 to 26075. [2022-03-18 16:45:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26075 states, 26070 states have (on average 1.3402378212504795) internal successors, (34940), 26070 states have internal predecessors, (34940), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26075 states to 26075 states and 34944 transitions. [2022-03-18 16:45:29,175 INFO L78 Accepts]: Start accepts. Automaton has 26075 states and 34944 transitions. Word has length 326 [2022-03-18 16:45:29,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:29,175 INFO L478 AbstractCegarLoop]: Abstraction has 26075 states and 34944 transitions. [2022-03-18 16:45:29,175 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:29,176 INFO L276 IsEmpty]: Start isEmpty. Operand 26075 states and 34944 transitions. [2022-03-18 16:45:29,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-03-18 16:45:29,191 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:29,191 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 7, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:29,191 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-18 16:45:29,191 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:29,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:29,192 INFO L85 PathProgramCache]: Analyzing trace with hash -303667775, now seen corresponding path program 1 times [2022-03-18 16:45:29,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:29,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241762645] [2022-03-18 16:45:29,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:29,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:29,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:29,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 514 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2022-03-18 16:45:29,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:29,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241762645] [2022-03-18 16:45:29,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241762645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:45:29,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:45:29,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:45:29,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85365503] [2022-03-18 16:45:29,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:29,338 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:45:29,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:29,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:45:29,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:45:29,339 INFO L87 Difference]: Start difference. First operand 26075 states and 34944 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:31,359 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 [] [2022-03-18 16:45:32,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:32,524 INFO L93 Difference]: Finished difference Result 52429 states and 70239 transitions. [2022-03-18 16:45:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:45:32,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 327 [2022-03-18 16:45:32,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:32,555 INFO L225 Difference]: With dead ends: 52429 [2022-03-18 16:45:32,555 INFO L226 Difference]: Without dead ends: 26382 [2022-03-18 16:45:32,637 INFO L911 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 [2022-03-18 16:45:32,637 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 47 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:32,637 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 562 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:45:32,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26382 states. [2022-03-18 16:45:33,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26382 to 26075. [2022-03-18 16:45:33,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26075 states, 26070 states have (on average 1.3388952819332567) internal successors, (34905), 26070 states have internal predecessors, (34905), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26075 states to 26075 states and 34909 transitions. [2022-03-18 16:45:33,535 INFO L78 Accepts]: Start accepts. Automaton has 26075 states and 34909 transitions. Word has length 327 [2022-03-18 16:45:33,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:33,535 INFO L478 AbstractCegarLoop]: Abstraction has 26075 states and 34909 transitions. [2022-03-18 16:45:33,535 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:33,535 INFO L276 IsEmpty]: Start isEmpty. Operand 26075 states and 34909 transitions. [2022-03-18 16:45:33,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-03-18 16:45:33,598 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:33,598 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:33,598 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-18 16:45:33,598 INFO L403 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:33,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:33,599 INFO L85 PathProgramCache]: Analyzing trace with hash 502170605, now seen corresponding path program 1 times [2022-03-18 16:45:33,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:33,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498678662] [2022-03-18 16:45:33,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:33,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:33,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:33,837 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 487 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2022-03-18 16:45:33,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:33,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498678662] [2022-03-18 16:45:33,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498678662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:45:33,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:45:33,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:45:33,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556350442] [2022-03-18 16:45:33,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:33,838 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:45:33,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:33,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:45:33,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:45:33,839 INFO L87 Difference]: Start difference. First operand 26075 states and 34909 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:36,126 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 [] [2022-03-18 16:45:39,053 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 [] [2022-03-18 16:45:40,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:40,995 INFO L93 Difference]: Finished difference Result 77484 states and 103277 transitions. [2022-03-18 16:45:40,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:45:40,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 328 [2022-03-18 16:45:40,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:41,062 INFO L225 Difference]: With dead ends: 77484 [2022-03-18 16:45:41,062 INFO L226 Difference]: Without dead ends: 51437 [2022-03-18 16:45:41,085 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:45:41,085 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 125 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:41,086 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 526 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 324 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-18 16:45:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51437 states. [2022-03-18 16:45:42,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51437 to 51435. [2022-03-18 16:45:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51435 states, 51430 states have (on average 1.3160606649815283) internal successors, (67685), 51430 states have internal predecessors, (67685), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:43,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51435 states to 51435 states and 67689 transitions. [2022-03-18 16:45:43,060 INFO L78 Accepts]: Start accepts. Automaton has 51435 states and 67689 transitions. Word has length 328 [2022-03-18 16:45:43,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:43,060 INFO L478 AbstractCegarLoop]: Abstraction has 51435 states and 67689 transitions. [2022-03-18 16:45:43,060 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 51435 states and 67689 transitions. [2022-03-18 16:45:43,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-03-18 16:45:43,099 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:43,099 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:43,100 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-18 16:45:43,100 INFO L403 AbstractCegarLoop]: === Iteration 77 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:43,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:43,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1540966247, now seen corresponding path program 1 times [2022-03-18 16:45:43,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:43,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541644186] [2022-03-18 16:45:43,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:43,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:44,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:44,552 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 281 proven. 613 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:45:44,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:44,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541644186] [2022-03-18 16:45:44,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541644186] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:45:44,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239262523] [2022-03-18 16:45:44,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:44,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:45:44,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:45:44,553 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:45:44,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-18 16:45:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:45,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 1695 conjuncts, 95 conjunts are in the unsatisfiable core [2022-03-18 16:45:45,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:45:45,826 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:45:45,826 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 [2022-03-18 16:45:45,878 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:45:45,879 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 [2022-03-18 16:45:45,986 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-18 16:45:45,986 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 [2022-03-18 16:45:45,996 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-03-18 16:45:45,996 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 [2022-03-18 16:45:45,999 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 [2022-03-18 16:45:46,005 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 [2022-03-18 16:45:46,014 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 [2022-03-18 16:45:46,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:46,062 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 [2022-03-18 16:45:46,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:46,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2022-03-18 16:45:46,105 INFO L356 Elim1Store]: treesize reduction 110, result has 33.7 percent of original size [2022-03-18 16:45:46,105 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 82 treesize of output 115 [2022-03-18 16:45:46,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:46,803 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 107 treesize of output 88 [2022-03-18 16:45:46,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:46,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:46,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:46,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:46,862 INFO L356 Elim1Store]: treesize reduction 234, result has 33.3 percent of original size [2022-03-18 16:45:46,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 112 treesize of output 170 [2022-03-18 16:45:46,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:46,868 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 142 treesize of output 117 [2022-03-18 16:45:48,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:48,498 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 105 treesize of output 86 [2022-03-18 16:45:48,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:48,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:48,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:48,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:48,551 INFO L356 Elim1Store]: treesize reduction 260, result has 25.9 percent of original size [2022-03-18 16:45:48,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 100 treesize of output 144 [2022-03-18 16:45:48,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:48,556 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 127 treesize of output 102 [2022-03-18 16:45:48,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:48,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:48,697 INFO L356 Elim1Store]: treesize reduction 206, result has 30.2 percent of original size [2022-03-18 16:45:48,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 107 treesize of output 152 [2022-03-18 16:45:48,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:48,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 130 [2022-03-18 16:45:48,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:48,706 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 148 treesize of output 117 [2022-03-18 16:45:48,796 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 175 treesize of output 127 [2022-03-18 16:45:48,798 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 114 treesize of output 72 [2022-03-18 16:45:49,435 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-03-18 16:45:49,435 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 38 treesize of output 25 [2022-03-18 16:45:49,581 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:45:49,581 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 28 treesize of output 10 [2022-03-18 16:45:49,716 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 676 proven. 135 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-03-18 16:45:49,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:45:49,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-18 16:45:49,792 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 [2022-03-18 16:45:50,542 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_131 Int) (v_ArrVal_24898 Int) (v_arrayElimCell_132 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_131 (store (select |c_#memory_int| v_arrayElimCell_131) (+ v_arrayElimCell_132 844) v_ArrVal_24898)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8640))) is different from false [2022-03-18 16:45:52,437 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 619 proven. 183 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-18 16:45:52,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239262523] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 16:45:52,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-18 16:45:52,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 19, 19] total 62 [2022-03-18 16:45:52,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412835335] [2022-03-18 16:45:52,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-18 16:45:52,438 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-03-18 16:45:52,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:52,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-03-18 16:45:52,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=3289, Unknown=1, NotChecked=118, Total=3782 [2022-03-18 16:45:52,440 INFO L87 Difference]: Start difference. First operand 51435 states and 67689 transitions. Second operand has 62 states, 62 states have (on average 10.274193548387096) internal successors, (637), 61 states have internal predecessors, (637), 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) [2022-03-18 16:45:54,174 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 [] [2022-03-18 16:45:56,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:58,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:00,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:03,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:05,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:07,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:08,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:10,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:12,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:14,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:16,620 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 [] [2022-03-18 16:46:48,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:46:48,658 INFO L93 Difference]: Finished difference Result 200032 states and 255309 transitions. [2022-03-18 16:46:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2022-03-18 16:46:48,658 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 10.274193548387096) internal successors, (637), 61 states have internal predecessors, (637), 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 328 [2022-03-18 16:46:48,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:46:48,929 INFO L225 Difference]: With dead ends: 200032 [2022-03-18 16:46:48,929 INFO L226 Difference]: Without dead ends: 144877 [2022-03-18 16:46:48,967 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 999 GetRequests, 712 SyntacticMatches, 17 SemanticMatches, 270 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 28830 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=5651, Invalid=67520, Unknown=3, NotChecked=538, Total=73712 [2022-03-18 16:46:48,968 INFO L912 BasicCegarLoop]: 530 mSDtfsCounter, 2899 mSDsluCounter, 15673 mSDsCounter, 0 mSdLazyCounter, 8327 mSolverCounterSat, 399 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2899 SdHoareTripleChecker+Valid, 16203 SdHoareTripleChecker+Invalid, 15419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 8327 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 6686 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:46:48,968 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2899 Valid, 16203 Invalid, 15419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 8327 Invalid, 7 Unknown, 6686 Unchecked, 31.4s Time] [2022-03-18 16:46:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144877 states. [2022-03-18 16:46:52,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144877 to 104440. [2022-03-18 16:46:52,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104440 states, 104435 states have (on average 1.2895485230047399) internal successors, (134674), 104435 states have internal predecessors, (134674), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:46:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104440 states to 104440 states and 134678 transitions. [2022-03-18 16:46:53,219 INFO L78 Accepts]: Start accepts. Automaton has 104440 states and 134678 transitions. Word has length 328 [2022-03-18 16:46:53,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:46:53,219 INFO L478 AbstractCegarLoop]: Abstraction has 104440 states and 134678 transitions. [2022-03-18 16:46:53,219 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 10.274193548387096) internal successors, (637), 61 states have internal predecessors, (637), 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) [2022-03-18 16:46:53,219 INFO L276 IsEmpty]: Start isEmpty. Operand 104440 states and 134678 transitions. [2022-03-18 16:46:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-03-18 16:46:53,291 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:46:53,291 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:46:53,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-18 16:46:53,491 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:46:53,492 INFO L403 AbstractCegarLoop]: === Iteration 78 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:46:53,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:46:53,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1076634538, now seen corresponding path program 1 times [2022-03-18 16:46:53,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:46:53,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095494738] [2022-03-18 16:46:53,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:46:53,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:46:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:46:53,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:46:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:46:53,780 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 592 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-03-18 16:46:53,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:46:53,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095494738] [2022-03-18 16:46:53,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095494738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:46:53,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:46:53,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:46:53,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476906590] [2022-03-18 16:46:53,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:46:53,781 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:46:53,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:46:53,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:46:53,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:46:53,782 INFO L87 Difference]: Start difference. First operand 104440 states and 134678 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:46:55,161 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 [] [2022-03-18 16:46:56,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:58,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:47:02,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:47:02,834 INFO L93 Difference]: Finished difference Result 209768 states and 270576 transitions. [2022-03-18 16:47:02,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:47:02,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 329 [2022-03-18 16:47:02,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:47:02,978 INFO L225 Difference]: With dead ends: 209768 [2022-03-18 16:47:02,978 INFO L226 Difference]: Without dead ends: 105374 [2022-03-18 16:47:03,039 INFO L911 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 [2022-03-18 16:47:03,039 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 168 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:47:03,040 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 227 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 225 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-18 16:47:03,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105374 states. [2022-03-18 16:47:06,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105374 to 105126. [2022-03-18 16:47:06,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105126 states, 105121 states have (on average 1.275729873193748) internal successors, (134106), 105121 states have internal predecessors, (134106), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:47:07,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105126 states to 105126 states and 134110 transitions. [2022-03-18 16:47:07,161 INFO L78 Accepts]: Start accepts. Automaton has 105126 states and 134110 transitions. Word has length 329 [2022-03-18 16:47:07,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:47:07,162 INFO L478 AbstractCegarLoop]: Abstraction has 105126 states and 134110 transitions. [2022-03-18 16:47:07,162 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:47:07,162 INFO L276 IsEmpty]: Start isEmpty. Operand 105126 states and 134110 transitions. [2022-03-18 16:47:07,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-18 16:47:07,232 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:47:07,232 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:47:07,232 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-18 16:47:07,232 INFO L403 AbstractCegarLoop]: === Iteration 79 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:47:07,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:47:07,232 INFO L85 PathProgramCache]: Analyzing trace with hash -835166127, now seen corresponding path program 1 times [2022-03-18 16:47:07,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:47:07,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873435853] [2022-03-18 16:47:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:47:07,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:47:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:47:08,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:47:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:47:08,178 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 399 proven. 416 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-18 16:47:08,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:47:08,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873435853] [2022-03-18 16:47:08,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873435853] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:47:08,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676424624] [2022-03-18 16:47:08,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:47:08,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:47:08,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:47:08,179 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:47:08,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-18 16:47:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:47:09,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 59 conjunts are in the unsatisfiable core [2022-03-18 16:47:09,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:47:09,557 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:47:09,557 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 [2022-03-18 16:47:09,596 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:47:09,596 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 [2022-03-18 16:47:09,755 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 [2022-03-18 16:47:09,818 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 [2022-03-18 16:47:09,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:47:09,936 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 36 treesize of output 35 [2022-03-18 16:47:09,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:47:09,954 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 36 treesize of output 35 [2022-03-18 16:47:09,969 INFO L356 Elim1Store]: treesize reduction 49, result has 46.7 percent of original size [2022-03-18 16:47:09,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 57 [2022-03-18 16:47:10,022 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-18 16:47:10,023 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 116 treesize of output 98 [2022-03-18 16:47:10,041 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-18 16:47:10,041 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 80 treesize of output 74 [2022-03-18 16:47:10,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:47:10,059 INFO L356 Elim1Store]: treesize reduction 37, result has 33.9 percent of original size [2022-03-18 16:47:10,059 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 31 treesize of output 43 [2022-03-18 16:47:10,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:47:10,130 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 89 treesize of output 82 [2022-03-18 16:47:10,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:47:10,133 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 89 treesize of output 82 [2022-03-18 16:47:10,160 INFO L356 Elim1Store]: treesize reduction 168, result has 27.0 percent of original size [2022-03-18 16:47:10,161 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 89 treesize of output 110 [2022-03-18 16:47:10,240 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 127 treesize of output 103 [2022-03-18 16:47:10,241 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 103 treesize of output 79 [2022-03-18 16:47:11,066 INFO L356 Elim1Store]: treesize reduction 22, result has 51.1 percent of original size [2022-03-18 16:47:11,066 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 58 treesize of output 50 [2022-03-18 16:47:11,097 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 376 proven. 169 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-18 16:47:11,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:47:16,672 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 884 treesize of output 692 [2022-03-18 16:47:16,676 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 3892 treesize of output 3280 [2022-03-18 16:47:16,894 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 395 proven. 33 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-03-18 16:47:16,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676424624] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 16:47:16,894 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-18 16:47:16,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15, 10] total 39 [2022-03-18 16:47:16,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960831737] [2022-03-18 16:47:16,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-18 16:47:16,895 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-03-18 16:47:16,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:47:16,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-03-18 16:47:16,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1326, Unknown=2, NotChecked=0, Total=1482 [2022-03-18 16:47:16,895 INFO L87 Difference]: Start difference. First operand 105126 states and 134110 transitions. Second operand has 39 states, 39 states have (on average 11.512820512820513) internal successors, (449), 38 states have internal predecessors, (449), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:47:20,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:47:22,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:47:24,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:47:26,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:47:29,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:47:31,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:47:33,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:47:34,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:47:36,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []