/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.16.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 03:05:29,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 03:05:29,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 03:05:29,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 03:05:29,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 03:05:29,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 03:05:29,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 03:05:29,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 03:05:29,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 03:05:29,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 03:05:29,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 03:05:29,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 03:05:29,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 03:05:29,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 03:05:29,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 03:05:29,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 03:05:29,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 03:05:29,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 03:05:29,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 03:05:29,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 03:05:29,347 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 03:05:29,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 03:05:29,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 03:05:29,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 03:05:29,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 03:05:29,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 03:05:29,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 03:05:29,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 03:05:29,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 03:05:29,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 03:05:29,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 03:05:29,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 03:05:29,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 03:05:29,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 03:05:29,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 03:05:29,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 03:05:29,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 03:05:29,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 03:05:29,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 03:05:29,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 03:05:29,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 03:05:29,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 03:05:29,365 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 [2022-03-20 03:05:29,382 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 03:05:29,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 03:05:29,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 03:05:29,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 03:05:29,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 03:05:29,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 03:05:29,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 03:05:29,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 03:05:29,384 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 03:05:29,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 03:05:29,384 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 03:05:29,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 03:05:29,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 03:05:29,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 03:05:29,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 03:05:29,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 03:05:29,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 03:05:29,385 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 03:05:29,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 03:05:29,385 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 03:05:29,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 03:05:29,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 03:05:29,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 03:05:29,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 03:05:29,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:05:29,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 03:05:29,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 03:05:29,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 03:05:29,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 03:05:29,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 03:05:29,386 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 03:05:29,386 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 03:05:29,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 03:05:29,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 03:05:29,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 03:05:29,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 03:05:29,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 03:05:29,591 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 03:05:29,592 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 03:05:29,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-03-20 03:05:29,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5680e4e5/86af27a303f94a049b108b492554540e/FLAG842f526c9 [2022-03-20 03:05:30,083 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 03:05:30,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-03-20 03:05:30,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5680e4e5/86af27a303f94a049b108b492554540e/FLAG842f526c9 [2022-03-20 03:05:30,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5680e4e5/86af27a303f94a049b108b492554540e [2022-03-20 03:05:30,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 03:05:30,138 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 03:05:30,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 03:05:30,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 03:05:30,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 03:05:30,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:05:30" (1/1) ... [2022-03-20 03:05:30,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c6fb8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:05:30, skipping insertion in model container [2022-03-20 03:05:30,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:05:30" (1/1) ... [2022-03-20 03:05:30,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 03:05:30,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 03:05:30,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c[77660,77673] [2022-03-20 03:05:30,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:05:30,479 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 03:05:30,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c[77660,77673] [2022-03-20 03:05:30,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:05:30,618 INFO L208 MainTranslator]: Completed translation [2022-03-20 03:05:30,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:05:30 WrapperNode [2022-03-20 03:05:30,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 03:05:30,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 03:05:30,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 03:05:30,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 03:05:30,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:05:30" (1/1) ... [2022-03-20 03:05:30,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:05:30" (1/1) ... [2022-03-20 03:05:30,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:05:30" (1/1) ... [2022-03-20 03:05:30,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:05:30" (1/1) ... [2022-03-20 03:05:30,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:05:30" (1/1) ... [2022-03-20 03:05:30,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:05:30" (1/1) ... [2022-03-20 03:05:30,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:05:30" (1/1) ... [2022-03-20 03:05:30,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 03:05:30,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 03:05:30,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 03:05:30,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 03:05:30,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:05:30" (1/1) ... [2022-03-20 03:05:30,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:05:30,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:05:30,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 03:05:30,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 03:05:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 03:05:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 03:05:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 03:05:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 03:05:30,834 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 03:05:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 03:05:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 03:05:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 03:05:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 03:05:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 03:05:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 03:05:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 03:05:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 03:05:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 03:05:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 03:05:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 03:05:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 03:05:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 03:05:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 03:05:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 03:05:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 03:05:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 03:05:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 03:05:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 03:05:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 03:05:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 03:05:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 03:05:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 03:05:31,004 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 03:05:31,005 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 03:05:31,623 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 03:05:32,069 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 03:05:32,070 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 03:05:32,079 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 03:05:32,088 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 03:05:32,088 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 03:05:32,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:05:32 BoogieIcfgContainer [2022-03-20 03:05:32,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 03:05:32,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 03:05:32,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 03:05:32,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 03:05:32,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 03:05:30" (1/3) ... [2022-03-20 03:05:32,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353e47f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:05:32, skipping insertion in model container [2022-03-20 03:05:32,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:05:30" (2/3) ... [2022-03-20 03:05:32,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353e47f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:05:32, skipping insertion in model container [2022-03-20 03:05:32,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:05:32" (3/3) ... [2022-03-20 03:05:32,097 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-2.c [2022-03-20 03:05:32,103 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 03:05:32,103 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 03:05:32,139 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 03:05:32,145 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 [2022-03-20 03:05:32,146 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 03:05:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 03:05:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-20 03:05:32,169 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:32,170 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:32,170 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:32,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:32,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2779566, now seen corresponding path program 1 times [2022-03-20 03:05:32,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:32,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201248066] [2022-03-20 03:05:32,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:32,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:32,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:32,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:32,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:32,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201248066] [2022-03-20 03:05:32,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201248066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:32,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:32,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:32,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994132902] [2022-03-20 03:05:32,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:32,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:32,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:32,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:32,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:32,690 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:35,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:35,238 INFO L93 Difference]: Finished difference Result 456 states and 778 transitions. [2022-03-20 03:05:35,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:35,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-20 03:05:35,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:35,247 INFO L225 Difference]: With dead ends: 456 [2022-03-20 03:05:35,248 INFO L226 Difference]: Without dead ends: 278 [2022-03-20 03:05:35,250 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:35,253 INFO L913 BasicCegarLoop]: 176 mSDtfsCounter, 170 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:35,253 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 517 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:05:35,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-20 03:05:35,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 191. [2022-03-20 03:05:35,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.6236559139784945) internal successors, (302), 186 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:35,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 306 transitions. [2022-03-20 03:05:35,299 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 306 transitions. Word has length 51 [2022-03-20 03:05:35,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:35,300 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 306 transitions. [2022-03-20 03:05:35,300 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:35,300 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 306 transitions. [2022-03-20 03:05:35,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-20 03:05:35,302 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:35,302 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:35,302 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 03:05:35,302 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:35,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:35,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1115524430, now seen corresponding path program 1 times [2022-03-20 03:05:35,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:35,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979537119] [2022-03-20 03:05:35,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:35,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:35,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:35,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:35,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979537119] [2022-03-20 03:05:35,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979537119] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:35,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:35,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:35,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124106413] [2022-03-20 03:05:35,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:35,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:35,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:35,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:35,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:35,508 INFO L87 Difference]: Start difference. First operand 191 states and 306 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:37,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:37,768 INFO L93 Difference]: Finished difference Result 395 states and 634 transitions. [2022-03-20 03:05:37,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:37,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-03-20 03:05:37,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:37,770 INFO L225 Difference]: With dead ends: 395 [2022-03-20 03:05:37,770 INFO L226 Difference]: Without dead ends: 219 [2022-03-20 03:05:37,771 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:37,771 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 22 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:37,772 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 535 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 03:05:37,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-03-20 03:05:37,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 202. [2022-03-20 03:05:37,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.6294416243654823) internal successors, (321), 197 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:37,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 325 transitions. [2022-03-20 03:05:37,782 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 325 transitions. Word has length 52 [2022-03-20 03:05:37,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:37,782 INFO L478 AbstractCegarLoop]: Abstraction has 202 states and 325 transitions. [2022-03-20 03:05:37,782 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:37,782 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 325 transitions. [2022-03-20 03:05:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 03:05:37,793 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:37,793 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:37,793 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 03:05:37,794 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:37,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:37,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1097885013, now seen corresponding path program 1 times [2022-03-20 03:05:37,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:37,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923934960] [2022-03-20 03:05:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:37,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:37,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:37,913 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:37,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:37,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923934960] [2022-03-20 03:05:37,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923934960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:37,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:37,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:37,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55386739] [2022-03-20 03:05:37,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:37,914 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:37,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:37,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:37,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:37,915 INFO L87 Difference]: Start difference. First operand 202 states and 325 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:40,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:42,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:42,057 INFO L93 Difference]: Finished difference Result 395 states and 633 transitions. [2022-03-20 03:05:42,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:42,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 03:05:42,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:42,059 INFO L225 Difference]: With dead ends: 395 [2022-03-20 03:05:42,059 INFO L226 Difference]: Without dead ends: 219 [2022-03-20 03:05:42,060 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:42,060 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 24 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:42,061 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 537 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 03:05:42,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-03-20 03:05:42,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 202. [2022-03-20 03:05:42,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.6243654822335025) internal successors, (320), 197 states have internal predecessors, (320), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:42,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 324 transitions. [2022-03-20 03:05:42,070 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 324 transitions. Word has length 65 [2022-03-20 03:05:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:42,070 INFO L478 AbstractCegarLoop]: Abstraction has 202 states and 324 transitions. [2022-03-20 03:05:42,070 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:42,070 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 324 transitions. [2022-03-20 03:05:42,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 03:05:42,071 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:42,071 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:42,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 03:05:42,072 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:42,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1516154789, now seen corresponding path program 1 times [2022-03-20 03:05:42,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:42,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091573458] [2022-03-20 03:05:42,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:42,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:42,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:42,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:42,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:42,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091573458] [2022-03-20 03:05:42,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091573458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:42,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:42,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:42,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311740542] [2022-03-20 03:05:42,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:42,230 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:42,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:42,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:42,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:42,231 INFO L87 Difference]: Start difference. First operand 202 states and 324 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:44,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:44,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:44,635 INFO L93 Difference]: Finished difference Result 394 states and 631 transitions. [2022-03-20 03:05:44,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:44,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 03:05:44,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:44,637 INFO L225 Difference]: With dead ends: 394 [2022-03-20 03:05:44,637 INFO L226 Difference]: Without dead ends: 218 [2022-03-20 03:05:44,638 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:44,638 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 28 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:44,638 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 539 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 376 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:05:44,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-03-20 03:05:44,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 202. [2022-03-20 03:05:44,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.619289340101523) internal successors, (319), 197 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:44,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 323 transitions. [2022-03-20 03:05:44,645 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 323 transitions. Word has length 66 [2022-03-20 03:05:44,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:44,646 INFO L478 AbstractCegarLoop]: Abstraction has 202 states and 323 transitions. [2022-03-20 03:05:44,646 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:44,646 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 323 transitions. [2022-03-20 03:05:44,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 03:05:44,647 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:44,647 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:44,647 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 03:05:44,647 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:44,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:44,647 INFO L85 PathProgramCache]: Analyzing trace with hash -678144017, now seen corresponding path program 1 times [2022-03-20 03:05:44,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:44,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122220779] [2022-03-20 03:05:44,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:44,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:44,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:44,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:44,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122220779] [2022-03-20 03:05:44,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122220779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:44,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:44,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:44,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912924659] [2022-03-20 03:05:44,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:44,772 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:44,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:44,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:44,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:44,772 INFO L87 Difference]: Start difference. First operand 202 states and 323 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:46,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:47,285 INFO L93 Difference]: Finished difference Result 504 states and 810 transitions. [2022-03-20 03:05:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:47,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 03:05:47,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:47,287 INFO L225 Difference]: With dead ends: 504 [2022-03-20 03:05:47,287 INFO L226 Difference]: Without dead ends: 328 [2022-03-20 03:05:47,287 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:47,288 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 165 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:47,288 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 398 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:05:47,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-03-20 03:05:47,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 214. [2022-03-20 03:05:47,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.6028708133971292) internal successors, (335), 209 states have internal predecessors, (335), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:47,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 339 transitions. [2022-03-20 03:05:47,295 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 339 transitions. Word has length 66 [2022-03-20 03:05:47,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:47,295 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 339 transitions. [2022-03-20 03:05:47,295 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:47,296 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 339 transitions. [2022-03-20 03:05:47,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 03:05:47,296 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:47,297 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:47,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 03:05:47,297 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:47,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:47,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1396571558, now seen corresponding path program 1 times [2022-03-20 03:05:47,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:47,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778563413] [2022-03-20 03:05:47,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:47,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:47,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:47,403 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:47,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:47,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778563413] [2022-03-20 03:05:47,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778563413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:47,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:47,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:47,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240998693] [2022-03-20 03:05:47,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:47,404 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:47,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:47,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:47,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:47,406 INFO L87 Difference]: Start difference. First operand 214 states and 339 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:50,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:52,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:53,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:53,274 INFO L93 Difference]: Finished difference Result 516 states and 824 transitions. [2022-03-20 03:05:53,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:53,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 03:05:53,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:53,276 INFO L225 Difference]: With dead ends: 516 [2022-03-20 03:05:53,276 INFO L226 Difference]: Without dead ends: 328 [2022-03-20 03:05:53,277 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:53,278 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 159 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:53,279 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 398 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 03:05:53,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-03-20 03:05:53,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 219. [2022-03-20 03:05:53,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5981308411214954) internal successors, (342), 214 states have internal predecessors, (342), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:53,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 346 transitions. [2022-03-20 03:05:53,292 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 346 transitions. Word has length 66 [2022-03-20 03:05:53,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:53,293 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 346 transitions. [2022-03-20 03:05:53,293 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:53,293 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 346 transitions. [2022-03-20 03:05:53,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 03:05:53,295 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:53,295 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:53,295 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 03:05:53,295 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:53,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:53,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1897223079, now seen corresponding path program 1 times [2022-03-20 03:05:53,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:53,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454461857] [2022-03-20 03:05:53,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:53,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:53,396 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:53,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:53,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454461857] [2022-03-20 03:05:53,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454461857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:53,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:53,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:53,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854601447] [2022-03-20 03:05:53,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:53,397 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:53,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:53,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:53,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:53,398 INFO L87 Difference]: Start difference. First operand 219 states and 346 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:56,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:57,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:57,036 INFO L93 Difference]: Finished difference Result 520 states and 828 transitions. [2022-03-20 03:05:57,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:57,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 03:05:57,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:57,038 INFO L225 Difference]: With dead ends: 520 [2022-03-20 03:05:57,038 INFO L226 Difference]: Without dead ends: 327 [2022-03-20 03:05:57,039 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:57,039 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 157 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:57,040 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 400 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 03:05:57,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-20 03:05:57,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 220. [2022-03-20 03:05:57,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.586046511627907) internal successors, (341), 215 states have internal predecessors, (341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:57,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 345 transitions. [2022-03-20 03:05:57,047 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 345 transitions. Word has length 66 [2022-03-20 03:05:57,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:57,047 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 345 transitions. [2022-03-20 03:05:57,047 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:57,047 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 345 transitions. [2022-03-20 03:05:57,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 03:05:57,048 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:57,048 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:57,048 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 03:05:57,048 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:57,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:57,048 INFO L85 PathProgramCache]: Analyzing trace with hash -941565164, now seen corresponding path program 1 times [2022-03-20 03:05:57,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:57,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259576933] [2022-03-20 03:05:57,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:57,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:57,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:57,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:57,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:57,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259576933] [2022-03-20 03:05:57,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259576933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:57,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:57,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:57,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739666575] [2022-03-20 03:05:57,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:57,180 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:57,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:57,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:57,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:57,181 INFO L87 Difference]: Start difference. First operand 220 states and 345 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:59,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:59,866 INFO L93 Difference]: Finished difference Result 521 states and 825 transitions. [2022-03-20 03:05:59,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:59,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 03:05:59,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:59,867 INFO L225 Difference]: With dead ends: 521 [2022-03-20 03:05:59,867 INFO L226 Difference]: Without dead ends: 327 [2022-03-20 03:05:59,868 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:59,868 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 161 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:59,869 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 400 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 03:05:59,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-20 03:05:59,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 220. [2022-03-20 03:05:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.572093023255814) internal successors, (338), 215 states have internal predecessors, (338), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:59,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 342 transitions. [2022-03-20 03:05:59,874 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 342 transitions. Word has length 67 [2022-03-20 03:05:59,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:59,874 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 342 transitions. [2022-03-20 03:05:59,874 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:59,874 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 342 transitions. [2022-03-20 03:05:59,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 03:05:59,875 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:59,875 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:59,875 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 03:05:59,875 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:59,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:59,876 INFO L85 PathProgramCache]: Analyzing trace with hash -556482924, now seen corresponding path program 1 times [2022-03-20 03:05:59,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:59,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985928544] [2022-03-20 03:05:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:59,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:59,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:59,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:59,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985928544] [2022-03-20 03:05:59,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985928544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:59,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:59,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:59,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731477095] [2022-03-20 03:05:59,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:59,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:59,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:59,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:59,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:59,978 INFO L87 Difference]: Start difference. First operand 220 states and 342 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:02,297 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 [] [2022-03-20 03:06:04,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:04,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:04,642 INFO L93 Difference]: Finished difference Result 427 states and 669 transitions. [2022-03-20 03:06:04,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:04,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 03:06:04,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:04,643 INFO L225 Difference]: With dead ends: 427 [2022-03-20 03:06:04,643 INFO L226 Difference]: Without dead ends: 233 [2022-03-20 03:06:04,644 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:04,644 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 20 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:04,644 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 03:06:04,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-03-20 03:06:04,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 220. [2022-03-20 03:06:04,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.5674418604651164) internal successors, (337), 215 states have internal predecessors, (337), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:04,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 341 transitions. [2022-03-20 03:06:04,649 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 341 transitions. Word has length 68 [2022-03-20 03:06:04,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:04,649 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 341 transitions. [2022-03-20 03:06:04,649 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:04,649 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 341 transitions. [2022-03-20 03:06:04,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 03:06:04,650 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:04,650 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:04,650 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 03:06:04,650 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:04,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:04,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1542632167, now seen corresponding path program 1 times [2022-03-20 03:06:04,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:04,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007159472] [2022-03-20 03:06:04,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:04,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:04,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:06:04,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:04,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007159472] [2022-03-20 03:06:04,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007159472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:04,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:04,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:04,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502206331] [2022-03-20 03:06:04,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:04,732 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:04,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:04,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:04,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:04,732 INFO L87 Difference]: Start difference. First operand 220 states and 341 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:06,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:07,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:07,218 INFO L93 Difference]: Finished difference Result 521 states and 819 transitions. [2022-03-20 03:06:07,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:07,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-20 03:06:07,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:07,220 INFO L225 Difference]: With dead ends: 521 [2022-03-20 03:06:07,220 INFO L226 Difference]: Without dead ends: 327 [2022-03-20 03:06:07,220 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:07,221 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 158 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:07,221 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 400 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:06:07,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-20 03:06:07,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 220. [2022-03-20 03:06:07,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.5534883720930233) internal successors, (334), 215 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:07,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 338 transitions. [2022-03-20 03:06:07,225 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 338 transitions. Word has length 69 [2022-03-20 03:06:07,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:07,226 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 338 transitions. [2022-03-20 03:06:07,226 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:07,226 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 338 transitions. [2022-03-20 03:06:07,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 03:06:07,226 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:07,226 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:07,226 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 03:06:07,227 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:07,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:07,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1451746050, now seen corresponding path program 1 times [2022-03-20 03:06:07,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:07,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738832370] [2022-03-20 03:06:07,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:07,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:07,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:06:07,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:07,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738832370] [2022-03-20 03:06:07,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738832370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:07,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:07,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:07,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216251872] [2022-03-20 03:06:07,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:07,334 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:07,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:07,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:07,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:07,335 INFO L87 Difference]: Start difference. First operand 220 states and 338 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:09,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:09,529 INFO L93 Difference]: Finished difference Result 456 states and 706 transitions. [2022-03-20 03:06:09,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:09,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-20 03:06:09,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:09,531 INFO L225 Difference]: With dead ends: 456 [2022-03-20 03:06:09,531 INFO L226 Difference]: Without dead ends: 262 [2022-03-20 03:06:09,531 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:09,532 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 29 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:09,532 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 559 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 03:06:09,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-20 03:06:09,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 242. [2022-03-20 03:06:09,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.5485232067510548) internal successors, (367), 237 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:09,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 371 transitions. [2022-03-20 03:06:09,537 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 371 transitions. Word has length 69 [2022-03-20 03:06:09,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:09,538 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 371 transitions. [2022-03-20 03:06:09,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 371 transitions. [2022-03-20 03:06:09,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 03:06:09,539 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:09,539 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:09,539 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 03:06:09,539 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:09,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:09,539 INFO L85 PathProgramCache]: Analyzing trace with hash 2125015415, now seen corresponding path program 1 times [2022-03-20 03:06:09,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:09,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453990355] [2022-03-20 03:06:09,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:09,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:09,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:06:09,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:09,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453990355] [2022-03-20 03:06:09,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453990355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:09,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:09,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:09,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23350387] [2022-03-20 03:06:09,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:09,646 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:09,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:09,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:09,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:09,647 INFO L87 Difference]: Start difference. First operand 242 states and 371 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:11,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:12,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:12,011 INFO L93 Difference]: Finished difference Result 476 states and 736 transitions. [2022-03-20 03:06:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:12,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 03:06:12,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:12,013 INFO L225 Difference]: With dead ends: 476 [2022-03-20 03:06:12,013 INFO L226 Difference]: Without dead ends: 260 [2022-03-20 03:06:12,014 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:12,014 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 34 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:12,014 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 563 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:06:12,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-20 03:06:12,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 242. [2022-03-20 03:06:12,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.5443037974683544) internal successors, (366), 237 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:12,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 370 transitions. [2022-03-20 03:06:12,019 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 370 transitions. Word has length 82 [2022-03-20 03:06:12,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:12,019 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 370 transitions. [2022-03-20 03:06:12,019 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:12,020 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 370 transitions. [2022-03-20 03:06:12,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 03:06:12,020 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:12,020 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:12,020 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 03:06:12,020 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:12,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:12,021 INFO L85 PathProgramCache]: Analyzing trace with hash -390489329, now seen corresponding path program 1 times [2022-03-20 03:06:12,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:12,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30171282] [2022-03-20 03:06:12,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:12,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:12,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 03:06:12,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:12,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30171282] [2022-03-20 03:06:12,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30171282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:12,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:12,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:12,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514532890] [2022-03-20 03:06:12,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:12,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:12,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:12,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:12,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:12,153 INFO L87 Difference]: Start difference. First operand 242 states and 370 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:13,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:15,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:16,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:16,756 INFO L93 Difference]: Finished difference Result 487 states and 750 transitions. [2022-03-20 03:06:16,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:16,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-20 03:06:16,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:16,758 INFO L225 Difference]: With dead ends: 487 [2022-03-20 03:06:16,758 INFO L226 Difference]: Without dead ends: 271 [2022-03-20 03:06:16,758 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:16,759 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 19 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:16,759 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 622 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 03:06:16,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-03-20 03:06:16,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 258. [2022-03-20 03:06:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5375494071146245) internal successors, (389), 253 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:16,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 393 transitions. [2022-03-20 03:06:16,764 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 393 transitions. Word has length 83 [2022-03-20 03:06:16,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:16,764 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 393 transitions. [2022-03-20 03:06:16,764 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 393 transitions. [2022-03-20 03:06:16,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 03:06:16,764 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:16,765 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:16,765 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 03:06:16,765 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:16,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:16,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1441438536, now seen corresponding path program 1 times [2022-03-20 03:06:16,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:16,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153679681] [2022-03-20 03:06:16,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:16,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:16,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:16,856 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 03:06:16,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:16,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153679681] [2022-03-20 03:06:16,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153679681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:16,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:16,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 03:06:16,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844623933] [2022-03-20 03:06:16,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:16,857 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 03:06:16,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:16,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 03:06:16,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:16,857 INFO L87 Difference]: Start difference. First operand 258 states and 393 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:19,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:21,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:21,008 INFO L93 Difference]: Finished difference Result 499 states and 768 transitions. [2022-03-20 03:06:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 03:06:21,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 03:06:21,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:21,010 INFO L225 Difference]: With dead ends: 499 [2022-03-20 03:06:21,010 INFO L226 Difference]: Without dead ends: 267 [2022-03-20 03:06:21,010 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 03:06:21,011 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 3 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:21,011 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 705 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 03:06:21,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-03-20 03:06:21,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-03-20 03:06:21,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 262 states have (on average 1.5267175572519085) internal successors, (400), 262 states have internal predecessors, (400), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:21,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 404 transitions. [2022-03-20 03:06:21,015 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 404 transitions. Word has length 84 [2022-03-20 03:06:21,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:21,016 INFO L478 AbstractCegarLoop]: Abstraction has 267 states and 404 transitions. [2022-03-20 03:06:21,016 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:21,016 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 404 transitions. [2022-03-20 03:06:21,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-20 03:06:21,016 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:21,016 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:21,016 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 03:06:21,017 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:21,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:21,017 INFO L85 PathProgramCache]: Analyzing trace with hash 185676079, now seen corresponding path program 1 times [2022-03-20 03:06:21,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:21,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024366726] [2022-03-20 03:06:21,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:21,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:21,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:21,096 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:06:21,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:21,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024366726] [2022-03-20 03:06:21,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024366726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:21,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:21,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:21,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155091110] [2022-03-20 03:06:21,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:21,097 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:21,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:21,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:21,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:21,097 INFO L87 Difference]: Start difference. First operand 267 states and 404 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:22,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:24,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:25,998 INFO L93 Difference]: Finished difference Result 525 states and 800 transitions. [2022-03-20 03:06:25,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:25,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-20 03:06:25,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:25,999 INFO L225 Difference]: With dead ends: 525 [2022-03-20 03:06:25,999 INFO L226 Difference]: Without dead ends: 284 [2022-03-20 03:06:26,000 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:26,000 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 34 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:26,000 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 565 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 406 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 03:06:26,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-03-20 03:06:26,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 267. [2022-03-20 03:06:26,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 262 states have (on average 1.5229007633587786) internal successors, (399), 262 states have internal predecessors, (399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 403 transitions. [2022-03-20 03:06:26,005 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 403 transitions. Word has length 86 [2022-03-20 03:06:26,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:26,006 INFO L478 AbstractCegarLoop]: Abstraction has 267 states and 403 transitions. [2022-03-20 03:06:26,006 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:26,006 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 403 transitions. [2022-03-20 03:06:26,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-20 03:06:26,006 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:26,006 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:26,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 03:06:26,007 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:26,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:26,007 INFO L85 PathProgramCache]: Analyzing trace with hash 706337034, now seen corresponding path program 1 times [2022-03-20 03:06:26,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:26,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050533600] [2022-03-20 03:06:26,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:26,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:26,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:26,105 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:06:26,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:26,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050533600] [2022-03-20 03:06:26,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050533600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:26,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:26,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:26,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180551064] [2022-03-20 03:06:26,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:26,106 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:26,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:26,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:26,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:26,107 INFO L87 Difference]: Start difference. First operand 267 states and 403 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:27,188 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 [] [2022-03-20 03:06:29,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:29,197 INFO L93 Difference]: Finished difference Result 624 states and 955 transitions. [2022-03-20 03:06:29,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:29,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-20 03:06:29,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:29,199 INFO L225 Difference]: With dead ends: 624 [2022-03-20 03:06:29,199 INFO L226 Difference]: Without dead ends: 383 [2022-03-20 03:06:29,199 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:29,200 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 133 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:29,200 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 426 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 03:06:29,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-03-20 03:06:29,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 289. [2022-03-20 03:06:29,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 284 states have (on average 1.556338028169014) internal successors, (442), 284 states have internal predecessors, (442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:29,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 446 transitions. [2022-03-20 03:06:29,205 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 446 transitions. Word has length 91 [2022-03-20 03:06:29,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:29,205 INFO L478 AbstractCegarLoop]: Abstraction has 289 states and 446 transitions. [2022-03-20 03:06:29,206 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:29,206 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 446 transitions. [2022-03-20 03:06:29,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-20 03:06:29,206 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:29,206 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:29,207 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 03:06:29,207 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:29,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:29,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1302523982, now seen corresponding path program 1 times [2022-03-20 03:06:29,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:29,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797601313] [2022-03-20 03:06:29,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:29,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:29,301 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:06:29,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:29,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797601313] [2022-03-20 03:06:29,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797601313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:29,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:29,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:29,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042344030] [2022-03-20 03:06:29,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:29,302 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:29,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:29,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:29,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:29,303 INFO L87 Difference]: Start difference. First operand 289 states and 446 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:32,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:32,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:32,790 INFO L93 Difference]: Finished difference Result 662 states and 1027 transitions. [2022-03-20 03:06:32,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:32,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-20 03:06:32,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:32,792 INFO L225 Difference]: With dead ends: 662 [2022-03-20 03:06:32,792 INFO L226 Difference]: Without dead ends: 399 [2022-03-20 03:06:32,792 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:32,792 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 97 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:32,793 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 561 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 550 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 03:06:32,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-03-20 03:06:32,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 323. [2022-03-20 03:06:32,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.5628930817610063) internal successors, (497), 318 states have internal predecessors, (497), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:32,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 501 transitions. [2022-03-20 03:06:32,798 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 501 transitions. Word has length 119 [2022-03-20 03:06:32,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:32,798 INFO L478 AbstractCegarLoop]: Abstraction has 323 states and 501 transitions. [2022-03-20 03:06:32,798 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:32,798 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 501 transitions. [2022-03-20 03:06:32,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-20 03:06:32,799 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:32,799 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:32,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 03:06:32,799 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:32,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:32,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2025092660, now seen corresponding path program 1 times [2022-03-20 03:06:32,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:32,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282813291] [2022-03-20 03:06:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:32,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:32,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 03:06:32,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:32,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282813291] [2022-03-20 03:06:32,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282813291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:32,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:32,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:32,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931451957] [2022-03-20 03:06:32,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:32,910 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:32,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:32,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:32,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:32,910 INFO L87 Difference]: Start difference. First operand 323 states and 501 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:36,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:37,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:37,070 INFO L93 Difference]: Finished difference Result 678 states and 1054 transitions. [2022-03-20 03:06:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:37,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-20 03:06:37,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:37,071 INFO L225 Difference]: With dead ends: 678 [2022-03-20 03:06:37,071 INFO L226 Difference]: Without dead ends: 381 [2022-03-20 03:06:37,072 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:37,072 INFO L913 BasicCegarLoop]: 264 mSDtfsCounter, 37 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:37,073 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 659 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 03:06:37,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-20 03:06:37,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 347. [2022-03-20 03:06:37,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 342 states have (on average 1.5614035087719298) internal successors, (534), 342 states have internal predecessors, (534), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:37,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 538 transitions. [2022-03-20 03:06:37,079 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 538 transitions. Word has length 119 [2022-03-20 03:06:37,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:37,079 INFO L478 AbstractCegarLoop]: Abstraction has 347 states and 538 transitions. [2022-03-20 03:06:37,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:37,080 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 538 transitions. [2022-03-20 03:06:37,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-20 03:06:37,081 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:37,081 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:37,081 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 03:06:37,081 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:37,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:37,081 INFO L85 PathProgramCache]: Analyzing trace with hash 806987058, now seen corresponding path program 1 times [2022-03-20 03:06:37,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:37,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208570854] [2022-03-20 03:06:37,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:37,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:37,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:37,188 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-20 03:06:37,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:37,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208570854] [2022-03-20 03:06:37,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208570854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:37,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:37,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:37,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013958498] [2022-03-20 03:06:37,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:37,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:37,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:37,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:37,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:37,190 INFO L87 Difference]: Start difference. First operand 347 states and 538 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:38,782 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 [] [2022-03-20 03:06:40,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:42,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:42,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:42,431 INFO L93 Difference]: Finished difference Result 675 states and 1056 transitions. [2022-03-20 03:06:42,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:42,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-20 03:06:42,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:42,432 INFO L225 Difference]: With dead ends: 675 [2022-03-20 03:06:42,432 INFO L226 Difference]: Without dead ends: 354 [2022-03-20 03:06:42,433 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:42,433 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 30 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:42,434 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 579 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 03:06:42,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-03-20 03:06:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 347. [2022-03-20 03:06:42,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 342 states have (on average 1.5584795321637428) internal successors, (533), 342 states have internal predecessors, (533), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:42,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 537 transitions. [2022-03-20 03:06:42,439 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 537 transitions. Word has length 124 [2022-03-20 03:06:42,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:42,439 INFO L478 AbstractCegarLoop]: Abstraction has 347 states and 537 transitions. [2022-03-20 03:06:42,439 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:42,439 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 537 transitions. [2022-03-20 03:06:42,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-20 03:06:42,463 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:42,463 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:42,463 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 03:06:42,463 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:42,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:42,464 INFO L85 PathProgramCache]: Analyzing trace with hash -532919832, now seen corresponding path program 1 times [2022-03-20 03:06:42,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:42,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586809913] [2022-03-20 03:06:42,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:42,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:42,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:06:42,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:42,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586809913] [2022-03-20 03:06:42,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586809913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:42,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:42,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:42,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031675052] [2022-03-20 03:06:42,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:42,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:42,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:42,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:42,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:42,552 INFO L87 Difference]: Start difference. First operand 347 states and 537 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:44,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:44,618 INFO L93 Difference]: Finished difference Result 802 states and 1247 transitions. [2022-03-20 03:06:44,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:44,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-20 03:06:44,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:44,621 INFO L225 Difference]: With dead ends: 802 [2022-03-20 03:06:44,621 INFO L226 Difference]: Without dead ends: 481 [2022-03-20 03:06:44,622 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:44,622 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 135 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:44,622 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 398 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 03:06:44,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-03-20 03:06:44,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 384. [2022-03-20 03:06:44,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5699208443271768) internal successors, (595), 379 states have internal predecessors, (595), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:44,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 599 transitions. [2022-03-20 03:06:44,629 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 599 transitions. Word has length 125 [2022-03-20 03:06:44,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:44,630 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 599 transitions. [2022-03-20 03:06:44,631 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:44,631 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 599 transitions. [2022-03-20 03:06:44,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-20 03:06:44,632 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:44,632 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:44,633 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 03:06:44,633 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:44,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:44,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1088367856, now seen corresponding path program 1 times [2022-03-20 03:06:44,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:44,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120596138] [2022-03-20 03:06:44,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:44,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:44,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:44,743 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:06:44,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:44,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120596138] [2022-03-20 03:06:44,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120596138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:44,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:44,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:44,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369168501] [2022-03-20 03:06:44,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:44,745 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:44,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:44,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:44,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:44,745 INFO L87 Difference]: Start difference. First operand 384 states and 599 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:47,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:47,284 INFO L93 Difference]: Finished difference Result 815 states and 1272 transitions. [2022-03-20 03:06:47,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:47,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have 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 [2022-03-20 03:06:47,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:47,286 INFO L225 Difference]: With dead ends: 815 [2022-03-20 03:06:47,286 INFO L226 Difference]: Without dead ends: 457 [2022-03-20 03:06:47,286 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:47,287 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 86 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:47,287 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 525 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:06:47,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-03-20 03:06:47,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 390. [2022-03-20 03:06:47,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 385 states have (on average 1.5714285714285714) internal successors, (605), 385 states have internal predecessors, (605), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:47,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 609 transitions. [2022-03-20 03:06:47,309 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 609 transitions. Word has length 126 [2022-03-20 03:06:47,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:47,310 INFO L478 AbstractCegarLoop]: Abstraction has 390 states and 609 transitions. [2022-03-20 03:06:47,310 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:47,310 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 609 transitions. [2022-03-20 03:06:47,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 03:06:47,311 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:47,311 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:47,311 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 03:06:47,311 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:47,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:47,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1486691735, now seen corresponding path program 1 times [2022-03-20 03:06:47,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:47,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001975418] [2022-03-20 03:06:47,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:47,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:47,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:06:47,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:47,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001975418] [2022-03-20 03:06:47,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001975418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:47,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:47,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:47,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925993] [2022-03-20 03:06:47,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:47,406 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:47,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:47,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:47,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:47,407 INFO L87 Difference]: Start difference. First operand 390 states and 609 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:50,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:52,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:52,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:52,755 INFO L93 Difference]: Finished difference Result 819 states and 1279 transitions. [2022-03-20 03:06:52,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:52,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 03:06:52,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:52,757 INFO L225 Difference]: With dead ends: 819 [2022-03-20 03:06:52,757 INFO L226 Difference]: Without dead ends: 455 [2022-03-20 03:06:52,757 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:52,758 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 107 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:52,758 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 527 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 03:06:52,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-03-20 03:06:52,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 390. [2022-03-20 03:06:52,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 385 states have (on average 1.568831168831169) internal successors, (604), 385 states have internal predecessors, (604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 608 transitions. [2022-03-20 03:06:52,764 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 608 transitions. Word has length 132 [2022-03-20 03:06:52,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:52,764 INFO L478 AbstractCegarLoop]: Abstraction has 390 states and 608 transitions. [2022-03-20 03:06:52,764 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:52,764 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 608 transitions. [2022-03-20 03:06:52,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 03:06:52,765 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:52,765 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:52,765 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 03:06:52,765 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:52,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:52,765 INFO L85 PathProgramCache]: Analyzing trace with hash -392439211, now seen corresponding path program 1 times [2022-03-20 03:06:52,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:52,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098594195] [2022-03-20 03:06:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:52,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:52,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:06:52,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:52,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098594195] [2022-03-20 03:06:52,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098594195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:52,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:52,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:52,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236934823] [2022-03-20 03:06:52,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:52,851 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:52,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:52,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:52,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:52,851 INFO L87 Difference]: Start difference. First operand 390 states and 608 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:55,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:57,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:57,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:57,774 INFO L93 Difference]: Finished difference Result 846 states and 1319 transitions. [2022-03-20 03:06:57,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:57,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 03:06:57,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:57,776 INFO L225 Difference]: With dead ends: 846 [2022-03-20 03:06:57,776 INFO L226 Difference]: Without dead ends: 482 [2022-03-20 03:06:57,777 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:57,777 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 156 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:57,777 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 402 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 03:06:57,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-03-20 03:06:57,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 390. [2022-03-20 03:06:57,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 385 states have (on average 1.5584415584415585) internal successors, (600), 385 states have internal predecessors, (600), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:57,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 604 transitions. [2022-03-20 03:06:57,783 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 604 transitions. Word has length 132 [2022-03-20 03:06:57,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:57,783 INFO L478 AbstractCegarLoop]: Abstraction has 390 states and 604 transitions. [2022-03-20 03:06:57,783 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:57,783 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 604 transitions. [2022-03-20 03:06:57,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 03:06:57,784 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:57,784 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:57,784 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 03:06:57,784 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:57,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:57,785 INFO L85 PathProgramCache]: Analyzing trace with hash 706398648, now seen corresponding path program 1 times [2022-03-20 03:06:57,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:57,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256961412] [2022-03-20 03:06:57,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:57,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:57,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:57,871 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:06:57,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:57,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256961412] [2022-03-20 03:06:57,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256961412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:57,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:57,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:57,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114485249] [2022-03-20 03:06:57,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:57,872 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:57,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:57,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:57,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:57,872 INFO L87 Difference]: Start difference. First operand 390 states and 604 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:00,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:00,826 INFO L93 Difference]: Finished difference Result 811 states and 1256 transitions. [2022-03-20 03:07:00,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:00,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 03:07:00,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:00,828 INFO L225 Difference]: With dead ends: 811 [2022-03-20 03:07:00,828 INFO L226 Difference]: Without dead ends: 447 [2022-03-20 03:07:00,829 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:00,829 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 69 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:00,829 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 535 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 03:07:00,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-03-20 03:07:00,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 393. [2022-03-20 03:07:00,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5541237113402062) internal successors, (603), 388 states have internal predecessors, (603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:00,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 607 transitions. [2022-03-20 03:07:00,835 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 607 transitions. Word has length 133 [2022-03-20 03:07:00,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:00,835 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 607 transitions. [2022-03-20 03:07:00,835 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:00,835 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 607 transitions. [2022-03-20 03:07:00,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-20 03:07:00,836 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:00,836 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:00,836 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 03:07:00,836 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:00,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:00,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1808704847, now seen corresponding path program 1 times [2022-03-20 03:07:00,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:00,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968008236] [2022-03-20 03:07:00,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:00,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:00,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:00,932 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:07:00,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:00,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968008236] [2022-03-20 03:07:00,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968008236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:00,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:00,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:00,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744503064] [2022-03-20 03:07:00,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:00,933 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:00,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:00,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:00,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:00,933 INFO L87 Difference]: Start difference. First operand 393 states and 607 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:02,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:02,548 INFO L93 Difference]: Finished difference Result 804 states and 1245 transitions. [2022-03-20 03:07:02,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:02,549 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 136 [2022-03-20 03:07:02,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:02,550 INFO L225 Difference]: With dead ends: 804 [2022-03-20 03:07:02,550 INFO L226 Difference]: Without dead ends: 437 [2022-03-20 03:07:02,550 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:02,551 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 94 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:02,551 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 537 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 03:07:02,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-03-20 03:07:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 393. [2022-03-20 03:07:02,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5515463917525774) internal successors, (602), 388 states have internal predecessors, (602), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 606 transitions. [2022-03-20 03:07:02,557 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 606 transitions. Word has length 136 [2022-03-20 03:07:02,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:02,557 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 606 transitions. [2022-03-20 03:07:02,557 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:02,557 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 606 transitions. [2022-03-20 03:07:02,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-20 03:07:02,558 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:02,558 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:02,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 03:07:02,558 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:02,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:02,558 INFO L85 PathProgramCache]: Analyzing trace with hash 814011149, now seen corresponding path program 1 times [2022-03-20 03:07:02,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:02,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741578669] [2022-03-20 03:07:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:02,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:07:02,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:02,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741578669] [2022-03-20 03:07:02,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741578669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:02,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:02,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:02,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044379369] [2022-03-20 03:07:02,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:02,656 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:02,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:02,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:02,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:02,658 INFO L87 Difference]: Start difference. First operand 393 states and 606 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:05,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:05,304 INFO L93 Difference]: Finished difference Result 844 states and 1304 transitions. [2022-03-20 03:07:05,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:05,304 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 136 [2022-03-20 03:07:05,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:05,306 INFO L225 Difference]: With dead ends: 844 [2022-03-20 03:07:05,306 INFO L226 Difference]: Without dead ends: 477 [2022-03-20 03:07:05,306 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:05,316 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 157 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:05,318 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 428 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:07:05,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-03-20 03:07:05,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 393. [2022-03-20 03:07:05,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.538659793814433) internal successors, (597), 388 states have internal predecessors, (597), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 601 transitions. [2022-03-20 03:07:05,332 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 601 transitions. Word has length 136 [2022-03-20 03:07:05,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:05,332 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 601 transitions. [2022-03-20 03:07:05,332 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:05,332 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 601 transitions. [2022-03-20 03:07:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-20 03:07:05,333 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:05,333 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:05,333 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 03:07:05,333 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:05,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:05,334 INFO L85 PathProgramCache]: Analyzing trace with hash -2048612344, now seen corresponding path program 1 times [2022-03-20 03:07:05,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:05,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596987903] [2022-03-20 03:07:05,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:05,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:05,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:05,439 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:07:05,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:05,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596987903] [2022-03-20 03:07:05,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596987903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:05,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:05,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:05,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131346576] [2022-03-20 03:07:05,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:05,439 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:05,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:05,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:05,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:05,440 INFO L87 Difference]: Start difference. First operand 393 states and 601 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) [2022-03-20 03:07:06,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:08,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:10,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:10,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:10,661 INFO L93 Difference]: Finished difference Result 844 states and 1294 transitions. [2022-03-20 03:07:10,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:10,661 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 141 [2022-03-20 03:07:10,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:10,662 INFO L225 Difference]: With dead ends: 844 [2022-03-20 03:07:10,662 INFO L226 Difference]: Without dead ends: 477 [2022-03-20 03:07:10,663 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:10,663 INFO L913 BasicCegarLoop]: 158 mSDtfsCounter, 146 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:10,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 442 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 03:07:10,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-03-20 03:07:10,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 393. [2022-03-20 03:07:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5283505154639174) internal successors, (593), 388 states have internal predecessors, (593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:10,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 597 transitions. [2022-03-20 03:07:10,669 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 597 transitions. Word has length 141 [2022-03-20 03:07:10,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:10,669 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 597 transitions. [2022-03-20 03:07:10,669 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) [2022-03-20 03:07:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 597 transitions. [2022-03-20 03:07:10,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-20 03:07:10,670 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:10,670 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:10,670 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 03:07:10,671 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:10,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:10,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1362845962, now seen corresponding path program 1 times [2022-03-20 03:07:10,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:10,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431161424] [2022-03-20 03:07:10,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:10,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:10,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:10,804 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 03:07:10,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:10,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431161424] [2022-03-20 03:07:10,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431161424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:10,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:10,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:10,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942641217] [2022-03-20 03:07:10,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:10,804 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:10,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:10,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:10,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:10,805 INFO L87 Difference]: Start difference. First operand 393 states and 597 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:13,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:14,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:15,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:15,073 INFO L93 Difference]: Finished difference Result 920 states and 1410 transitions. [2022-03-20 03:07:15,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:15,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2022-03-20 03:07:15,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:15,075 INFO L225 Difference]: With dead ends: 920 [2022-03-20 03:07:15,075 INFO L226 Difference]: Without dead ends: 553 [2022-03-20 03:07:15,076 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:15,076 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 137 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:15,076 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 440 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 03:07:15,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-03-20 03:07:15,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 457. [2022-03-20 03:07:15,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 452 states have (on average 1.5309734513274336) internal successors, (692), 452 states have internal predecessors, (692), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:15,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 696 transitions. [2022-03-20 03:07:15,083 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 696 transitions. Word has length 141 [2022-03-20 03:07:15,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:15,083 INFO L478 AbstractCegarLoop]: Abstraction has 457 states and 696 transitions. [2022-03-20 03:07:15,083 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:15,083 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 696 transitions. [2022-03-20 03:07:15,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 03:07:15,084 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:15,084 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:15,084 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 03:07:15,084 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:15,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:15,085 INFO L85 PathProgramCache]: Analyzing trace with hash 717063722, now seen corresponding path program 1 times [2022-03-20 03:07:15,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:15,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562279326] [2022-03-20 03:07:15,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:15,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:15,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:15,210 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 03:07:15,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:15,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562279326] [2022-03-20 03:07:15,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562279326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:15,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:15,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:15,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708793686] [2022-03-20 03:07:15,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:15,211 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:15,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:15,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:15,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:15,211 INFO L87 Difference]: Start difference. First operand 457 states and 696 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:17,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:17,590 INFO L93 Difference]: Finished difference Result 962 states and 1472 transitions. [2022-03-20 03:07:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:17,591 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 146 [2022-03-20 03:07:17,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:17,592 INFO L225 Difference]: With dead ends: 962 [2022-03-20 03:07:17,592 INFO L226 Difference]: Without dead ends: 531 [2022-03-20 03:07:17,593 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:17,593 INFO L913 BasicCegarLoop]: 161 mSDtfsCounter, 153 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:17,594 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 448 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:07:17,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-03-20 03:07:17,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 457. [2022-03-20 03:07:17,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 452 states have (on average 1.5132743362831858) internal successors, (684), 452 states have internal predecessors, (684), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:17,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 688 transitions. [2022-03-20 03:07:17,600 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 688 transitions. Word has length 146 [2022-03-20 03:07:17,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:17,600 INFO L478 AbstractCegarLoop]: Abstraction has 457 states and 688 transitions. [2022-03-20 03:07:17,600 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:17,600 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 688 transitions. [2022-03-20 03:07:17,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 03:07:17,601 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:17,601 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:17,601 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 03:07:17,601 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:17,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:17,602 INFO L85 PathProgramCache]: Analyzing trace with hash -28401772, now seen corresponding path program 1 times [2022-03-20 03:07:17,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:17,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507807166] [2022-03-20 03:07:17,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:17,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:17,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:17,690 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:07:17,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:17,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507807166] [2022-03-20 03:07:17,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507807166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:17,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:17,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:17,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914108932] [2022-03-20 03:07:17,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:17,691 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:17,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:17,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:17,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:17,691 INFO L87 Difference]: Start difference. First operand 457 states and 688 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) [2022-03-20 03:07:19,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:21,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:21,579 INFO L93 Difference]: Finished difference Result 1002 states and 1518 transitions. [2022-03-20 03:07:21,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:21,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 03:07:21,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:21,580 INFO L225 Difference]: With dead ends: 1002 [2022-03-20 03:07:21,581 INFO L226 Difference]: Without dead ends: 571 [2022-03-20 03:07:21,581 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:21,582 INFO L913 BasicCegarLoop]: 161 mSDtfsCounter, 133 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:21,582 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 448 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 03:07:21,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-03-20 03:07:21,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 487. [2022-03-20 03:07:21,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 482 states have (on average 1.5020746887966805) internal successors, (724), 482 states have internal predecessors, (724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:21,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 728 transitions. [2022-03-20 03:07:21,589 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 728 transitions. Word has length 146 [2022-03-20 03:07:21,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:21,589 INFO L478 AbstractCegarLoop]: Abstraction has 487 states and 728 transitions. [2022-03-20 03:07:21,589 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) [2022-03-20 03:07:21,589 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 728 transitions. [2022-03-20 03:07:21,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 03:07:21,590 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:21,590 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:21,590 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 03:07:21,590 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:21,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:21,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1277749095, now seen corresponding path program 1 times [2022-03-20 03:07:21,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:21,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007576648] [2022-03-20 03:07:21,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:21,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:21,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:21,729 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:07:21,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:21,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007576648] [2022-03-20 03:07:21,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007576648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:21,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:21,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:21,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254356460] [2022-03-20 03:07:21,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:21,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:21,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:21,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:21,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:21,731 INFO L87 Difference]: Start difference. First operand 487 states and 728 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 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) [2022-03-20 03:07:23,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:23,614 INFO L93 Difference]: Finished difference Result 980 states and 1473 transitions. [2022-03-20 03:07:23,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:23,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 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 147 [2022-03-20 03:07:23,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:23,616 INFO L225 Difference]: With dead ends: 980 [2022-03-20 03:07:23,616 INFO L226 Difference]: Without dead ends: 519 [2022-03-20 03:07:23,616 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:23,616 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 66 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:23,617 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 569 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 03:07:23,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-03-20 03:07:23,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 487. [2022-03-20 03:07:23,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 482 states have (on average 1.5) internal successors, (723), 482 states have internal predecessors, (723), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:23,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 727 transitions. [2022-03-20 03:07:23,623 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 727 transitions. Word has length 147 [2022-03-20 03:07:23,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:23,623 INFO L478 AbstractCegarLoop]: Abstraction has 487 states and 727 transitions. [2022-03-20 03:07:23,623 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 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) [2022-03-20 03:07:23,623 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 727 transitions. [2022-03-20 03:07:23,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 03:07:23,624 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:23,624 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:23,625 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 03:07:23,625 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:23,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:23,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1059379048, now seen corresponding path program 1 times [2022-03-20 03:07:23,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:23,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838404182] [2022-03-20 03:07:23,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:23,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:23,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:23,719 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 03:07:23,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:23,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838404182] [2022-03-20 03:07:23,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838404182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:23,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:23,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:23,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128811554] [2022-03-20 03:07:23,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:23,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:23,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:23,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:23,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:23,720 INFO L87 Difference]: Start difference. First operand 487 states and 727 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:26,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:27,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:27,398 INFO L93 Difference]: Finished difference Result 1406 states and 2119 transitions. [2022-03-20 03:07:27,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:07:27,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-20 03:07:27,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:27,401 INFO L225 Difference]: With dead ends: 1406 [2022-03-20 03:07:27,401 INFO L226 Difference]: Without dead ends: 945 [2022-03-20 03:07:27,402 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:27,402 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 151 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:27,402 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 450 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 334 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 03:07:27,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-03-20 03:07:27,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 945. [2022-03-20 03:07:27,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 940 states have (on average 1.4882978723404254) internal successors, (1399), 940 states have internal predecessors, (1399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:27,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1403 transitions. [2022-03-20 03:07:27,416 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1403 transitions. Word has length 148 [2022-03-20 03:07:27,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:27,416 INFO L478 AbstractCegarLoop]: Abstraction has 945 states and 1403 transitions. [2022-03-20 03:07:27,416 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:27,416 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1403 transitions. [2022-03-20 03:07:27,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 03:07:27,418 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:27,418 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:27,418 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 03:07:27,418 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:27,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:27,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1368879574, now seen corresponding path program 1 times [2022-03-20 03:07:27,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:27,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679965756] [2022-03-20 03:07:27,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:27,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:27,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:27,505 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-20 03:07:27,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:27,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679965756] [2022-03-20 03:07:27,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679965756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:27,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:27,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:27,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919148801] [2022-03-20 03:07:27,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:27,506 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:27,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:27,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:27,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:27,506 INFO L87 Difference]: Start difference. First operand 945 states and 1403 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:28,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:30,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:30,192 INFO L93 Difference]: Finished difference Result 1891 states and 2813 transitions. [2022-03-20 03:07:30,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:07:30,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-20 03:07:30,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:30,195 INFO L225 Difference]: With dead ends: 1891 [2022-03-20 03:07:30,195 INFO L226 Difference]: Without dead ends: 972 [2022-03-20 03:07:30,196 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:30,196 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:30,196 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 435 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 03:07:30,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-03-20 03:07:30,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 972. [2022-03-20 03:07:30,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 967 states have (on average 1.482936918304033) internal successors, (1434), 967 states have internal predecessors, (1434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1438 transitions. [2022-03-20 03:07:30,209 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1438 transitions. Word has length 148 [2022-03-20 03:07:30,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:30,209 INFO L478 AbstractCegarLoop]: Abstraction has 972 states and 1438 transitions. [2022-03-20 03:07:30,209 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:30,209 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1438 transitions. [2022-03-20 03:07:30,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 03:07:30,211 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:30,211 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:30,211 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 03:07:30,211 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:30,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:30,211 INFO L85 PathProgramCache]: Analyzing trace with hash -681529324, now seen corresponding path program 1 times [2022-03-20 03:07:30,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:30,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986068340] [2022-03-20 03:07:30,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:30,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:30,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:30,292 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-03-20 03:07:30,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:30,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986068340] [2022-03-20 03:07:30,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986068340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:30,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:30,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:30,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417810211] [2022-03-20 03:07:30,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:30,293 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:30,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:30,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:30,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:30,293 INFO L87 Difference]: Start difference. First operand 972 states and 1438 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:33,093 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 [] [2022-03-20 03:07:33,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:33,318 INFO L93 Difference]: Finished difference Result 1920 states and 2849 transitions. [2022-03-20 03:07:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:07:33,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-20 03:07:33,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:33,320 INFO L225 Difference]: With dead ends: 1920 [2022-03-20 03:07:33,320 INFO L226 Difference]: Without dead ends: 974 [2022-03-20 03:07:33,328 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:33,329 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:33,329 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 414 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 03:07:33,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-03-20 03:07:33,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2022-03-20 03:07:33,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 969 states have (on average 1.4819401444788443) internal successors, (1436), 969 states have internal predecessors, (1436), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:33,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1440 transitions. [2022-03-20 03:07:33,347 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1440 transitions. Word has length 148 [2022-03-20 03:07:33,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:33,347 INFO L478 AbstractCegarLoop]: Abstraction has 974 states and 1440 transitions. [2022-03-20 03:07:33,347 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:33,347 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1440 transitions. [2022-03-20 03:07:33,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-20 03:07:33,348 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:33,349 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:33,349 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 03:07:33,349 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:33,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:33,349 INFO L85 PathProgramCache]: Analyzing trace with hash 876192622, now seen corresponding path program 1 times [2022-03-20 03:07:33,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:33,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351107727] [2022-03-20 03:07:33,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:33,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:33,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 03:07:33,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:33,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351107727] [2022-03-20 03:07:33,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351107727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:33,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:33,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:33,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771259703] [2022-03-20 03:07:33,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:33,457 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:33,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:33,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:33,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:33,457 INFO L87 Difference]: Start difference. First operand 974 states and 1440 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:35,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:35,268 INFO L93 Difference]: Finished difference Result 2378 states and 3543 transitions. [2022-03-20 03:07:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:07:35,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-20 03:07:35,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:35,272 INFO L225 Difference]: With dead ends: 2378 [2022-03-20 03:07:35,272 INFO L226 Difference]: Without dead ends: 1432 [2022-03-20 03:07:35,273 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:35,274 INFO L913 BasicCegarLoop]: 401 mSDtfsCounter, 156 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:35,274 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 595 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 03:07:35,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2022-03-20 03:07:35,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1432. [2022-03-20 03:07:35,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1427 states have (on average 1.4800280308339173) internal successors, (2112), 1427 states have internal predecessors, (2112), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:35,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2116 transitions. [2022-03-20 03:07:35,293 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2116 transitions. Word has length 150 [2022-03-20 03:07:35,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:35,293 INFO L478 AbstractCegarLoop]: Abstraction has 1432 states and 2116 transitions. [2022-03-20 03:07:35,293 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:35,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2116 transitions. [2022-03-20 03:07:35,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-03-20 03:07:35,296 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:35,296 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:35,296 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 03:07:35,296 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:35,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:35,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1363996308, now seen corresponding path program 1 times [2022-03-20 03:07:35,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:35,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055349301] [2022-03-20 03:07:35,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:35,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:35,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:35,398 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-03-20 03:07:35,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:35,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055349301] [2022-03-20 03:07:35,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055349301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:35,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:35,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:35,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420761980] [2022-03-20 03:07:35,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:35,399 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:35,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:35,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:35,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:35,400 INFO L87 Difference]: Start difference. First operand 1432 states and 2116 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:36,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:38,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:38,446 INFO L93 Difference]: Finished difference Result 2986 states and 4419 transitions. [2022-03-20 03:07:38,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:38,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2022-03-20 03:07:38,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:38,451 INFO L225 Difference]: With dead ends: 2986 [2022-03-20 03:07:38,451 INFO L226 Difference]: Without dead ends: 1582 [2022-03-20 03:07:38,452 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:38,455 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 40 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:38,455 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 655 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 03:07:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2022-03-20 03:07:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1516. [2022-03-20 03:07:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1511 states have (on average 1.4791528788881536) internal successors, (2235), 1511 states have internal predecessors, (2235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:38,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2239 transitions. [2022-03-20 03:07:38,473 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2239 transitions. Word has length 179 [2022-03-20 03:07:38,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:38,474 INFO L478 AbstractCegarLoop]: Abstraction has 1516 states and 2239 transitions. [2022-03-20 03:07:38,474 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:38,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2239 transitions. [2022-03-20 03:07:38,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-20 03:07:38,476 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:38,476 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:38,476 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 03:07:38,476 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:38,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:38,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2095504041, now seen corresponding path program 1 times [2022-03-20 03:07:38,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:38,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296716067] [2022-03-20 03:07:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:38,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:38,599 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-03-20 03:07:38,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:38,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296716067] [2022-03-20 03:07:38,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296716067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:38,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:38,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:38,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284828518] [2022-03-20 03:07:38,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:38,600 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:38,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:38,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:38,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:38,601 INFO L87 Difference]: Start difference. First operand 1516 states and 2239 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:40,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:41,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:43,278 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 [] [2022-03-20 03:07:43,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:43,685 INFO L93 Difference]: Finished difference Result 3221 states and 4741 transitions. [2022-03-20 03:07:43,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:43,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-03-20 03:07:43,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:43,690 INFO L225 Difference]: With dead ends: 3221 [2022-03-20 03:07:43,690 INFO L226 Difference]: Without dead ends: 1733 [2022-03-20 03:07:43,691 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:43,691 INFO L913 BasicCegarLoop]: 152 mSDtfsCounter, 138 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:43,691 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 430 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 03:07:43,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2022-03-20 03:07:43,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1516. [2022-03-20 03:07:43,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1511 states have (on average 1.4632693580410325) internal successors, (2211), 1511 states have internal predecessors, (2211), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:43,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2215 transitions. [2022-03-20 03:07:43,739 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2215 transitions. Word has length 202 [2022-03-20 03:07:43,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:43,739 INFO L478 AbstractCegarLoop]: Abstraction has 1516 states and 2215 transitions. [2022-03-20 03:07:43,739 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:43,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2215 transitions. [2022-03-20 03:07:43,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-20 03:07:43,742 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:43,742 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:43,742 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 03:07:43,742 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:43,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:43,742 INFO L85 PathProgramCache]: Analyzing trace with hash -681149549, now seen corresponding path program 1 times [2022-03-20 03:07:43,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:43,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726315134] [2022-03-20 03:07:43,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:43,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:43,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:43,853 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-03-20 03:07:43,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:43,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726315134] [2022-03-20 03:07:43,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726315134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:43,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:43,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:43,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212410865] [2022-03-20 03:07:43,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:43,854 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:43,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:43,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:43,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:43,855 INFO L87 Difference]: Start difference. First operand 1516 states and 2215 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:46,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:46,461 INFO L93 Difference]: Finished difference Result 3491 states and 5127 transitions. [2022-03-20 03:07:46,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:07:46,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-03-20 03:07:46,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:46,465 INFO L225 Difference]: With dead ends: 3491 [2022-03-20 03:07:46,465 INFO L226 Difference]: Without dead ends: 2003 [2022-03-20 03:07:46,467 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:46,467 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:46,467 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 390 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:07:46,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2022-03-20 03:07:46,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 2003. [2022-03-20 03:07:46,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1998 states have (on average 1.464964964964965) internal successors, (2927), 1998 states have internal predecessors, (2927), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:46,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2931 transitions. [2022-03-20 03:07:46,492 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2931 transitions. Word has length 203 [2022-03-20 03:07:46,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:46,492 INFO L478 AbstractCegarLoop]: Abstraction has 2003 states and 2931 transitions. [2022-03-20 03:07:46,492 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:46,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2931 transitions. [2022-03-20 03:07:46,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-03-20 03:07:46,495 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:46,495 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:46,496 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 03:07:46,496 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:46,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:46,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1744677605, now seen corresponding path program 1 times [2022-03-20 03:07:46,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:46,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582463557] [2022-03-20 03:07:46,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:46,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:46,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:46,611 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-20 03:07:46,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:46,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582463557] [2022-03-20 03:07:46,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582463557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:46,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:46,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:46,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48668844] [2022-03-20 03:07:46,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:46,612 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:46,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:46,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:46,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:46,612 INFO L87 Difference]: Start difference. First operand 2003 states and 2931 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:47,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:49,748 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 [] [2022-03-20 03:07:50,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:50,640 INFO L93 Difference]: Finished difference Result 4047 states and 5931 transitions. [2022-03-20 03:07:50,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:50,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 233 [2022-03-20 03:07:50,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:50,645 INFO L225 Difference]: With dead ends: 4047 [2022-03-20 03:07:50,645 INFO L226 Difference]: Without dead ends: 2072 [2022-03-20 03:07:50,649 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:50,649 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 38 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:50,649 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 643 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 03:07:50,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2022-03-20 03:07:50,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 2003. [2022-03-20 03:07:50,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1998 states have (on average 1.462962962962963) internal successors, (2923), 1998 states have internal predecessors, (2923), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:50,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2927 transitions. [2022-03-20 03:07:50,681 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2927 transitions. Word has length 233 [2022-03-20 03:07:50,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:50,681 INFO L478 AbstractCegarLoop]: Abstraction has 2003 states and 2927 transitions. [2022-03-20 03:07:50,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:50,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2927 transitions. [2022-03-20 03:07:50,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-20 03:07:50,685 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:50,685 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:50,685 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 03:07:50,685 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:50,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:50,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1564687898, now seen corresponding path program 1 times [2022-03-20 03:07:50,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:50,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868300436] [2022-03-20 03:07:50,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:50,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:50,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-20 03:07:50,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:50,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868300436] [2022-03-20 03:07:50,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868300436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:50,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:50,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:50,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067956229] [2022-03-20 03:07:50,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:50,832 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:50,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:50,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:50,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:50,833 INFO L87 Difference]: Start difference. First operand 2003 states and 2927 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:52,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:54,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:55,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:55,326 INFO L93 Difference]: Finished difference Result 4267 states and 6216 transitions. [2022-03-20 03:07:55,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:55,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-03-20 03:07:55,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:55,334 INFO L225 Difference]: With dead ends: 4267 [2022-03-20 03:07:55,335 INFO L226 Difference]: Without dead ends: 2292 [2022-03-20 03:07:55,337 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:55,337 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 139 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:55,337 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 420 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 03:07:55,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2022-03-20 03:07:55,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2003. [2022-03-20 03:07:55,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1998 states have (on average 1.444944944944945) internal successors, (2887), 1998 states have internal predecessors, (2887), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:55,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2891 transitions. [2022-03-20 03:07:55,364 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2891 transitions. Word has length 234 [2022-03-20 03:07:55,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:55,364 INFO L478 AbstractCegarLoop]: Abstraction has 2003 states and 2891 transitions. [2022-03-20 03:07:55,364 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2891 transitions. [2022-03-20 03:07:55,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-20 03:07:55,367 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:55,367 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:55,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 03:07:55,367 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash -350585189, now seen corresponding path program 1 times [2022-03-20 03:07:55,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:55,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189073426] [2022-03-20 03:07:55,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:55,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:55,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:55,519 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-03-20 03:07:55,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:55,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189073426] [2022-03-20 03:07:55,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189073426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:55,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:55,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:55,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156161638] [2022-03-20 03:07:55,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:55,520 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:55,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:55,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:55,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:55,520 INFO L87 Difference]: Start difference. First operand 2003 states and 2891 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:57,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:58,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:58,444 INFO L93 Difference]: Finished difference Result 4464 states and 6455 transitions. [2022-03-20 03:07:58,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:07:58,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 236 [2022-03-20 03:07:58,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:58,449 INFO L225 Difference]: With dead ends: 4464 [2022-03-20 03:07:58,450 INFO L226 Difference]: Without dead ends: 2489 [2022-03-20 03:07:58,452 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:58,452 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:58,452 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 03:07:58,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2022-03-20 03:07:58,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2489. [2022-03-20 03:07:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2484 states have (on average 1.4436392914653784) internal successors, (3586), 2484 states have internal predecessors, (3586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:58,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3590 transitions. [2022-03-20 03:07:58,485 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3590 transitions. Word has length 236 [2022-03-20 03:07:58,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:58,485 INFO L478 AbstractCegarLoop]: Abstraction has 2489 states and 3590 transitions. [2022-03-20 03:07:58,485 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:58,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3590 transitions. [2022-03-20 03:07:58,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-20 03:07:58,488 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:58,489 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:58,489 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 03:07:58,489 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:58,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:58,489 INFO L85 PathProgramCache]: Analyzing trace with hash -48256832, now seen corresponding path program 1 times [2022-03-20 03:07:58,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:58,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583246895] [2022-03-20 03:07:58,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:58,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:58,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-20 03:07:58,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:58,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583246895] [2022-03-20 03:07:58,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583246895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:58,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:58,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:07:58,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553589042] [2022-03-20 03:07:58,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:58,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:07:58,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:58,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:07:58,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:07:58,652 INFO L87 Difference]: Start difference. First operand 2489 states and 3590 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 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) [2022-03-20 03:08:00,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:01,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:02,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:02,230 INFO L93 Difference]: Finished difference Result 5437 states and 7867 transitions. [2022-03-20 03:08:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:08:02,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 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 242 [2022-03-20 03:08:02,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:02,234 INFO L225 Difference]: With dead ends: 5437 [2022-03-20 03:08:02,234 INFO L226 Difference]: Without dead ends: 2976 [2022-03-20 03:08:02,236 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:02,236 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 167 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:02,237 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 389 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 03:08:02,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2022-03-20 03:08:02,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2976. [2022-03-20 03:08:02,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2971 states have (on average 1.4449680242342646) internal successors, (4293), 2971 states have internal predecessors, (4293), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:02,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 4297 transitions. [2022-03-20 03:08:02,271 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 4297 transitions. Word has length 242 [2022-03-20 03:08:02,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:02,272 INFO L478 AbstractCegarLoop]: Abstraction has 2976 states and 4297 transitions. [2022-03-20 03:08:02,272 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 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) [2022-03-20 03:08:02,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 4297 transitions. [2022-03-20 03:08:02,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-20 03:08:02,275 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:02,275 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:02,275 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 03:08:02,275 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:02,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:02,276 INFO L85 PathProgramCache]: Analyzing trace with hash 805139114, now seen corresponding path program 1 times [2022-03-20 03:08:02,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:02,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752507750] [2022-03-20 03:08:02,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:02,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:02,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:02,426 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-20 03:08:02,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:02,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752507750] [2022-03-20 03:08:02,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752507750] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:02,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:02,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:08:02,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127602428] [2022-03-20 03:08:02,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:02,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:08:02,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:02,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:08:02,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:02,428 INFO L87 Difference]: Start difference. First operand 2976 states and 4297 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:04,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:04,655 INFO L93 Difference]: Finished difference Result 6411 states and 9281 transitions. [2022-03-20 03:08:04,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:08:04,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-03-20 03:08:04,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:04,661 INFO L225 Difference]: With dead ends: 6411 [2022-03-20 03:08:04,661 INFO L226 Difference]: Without dead ends: 3463 [2022-03-20 03:08:04,664 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:04,665 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 168 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:04,665 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 388 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 03:08:04,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2022-03-20 03:08:04,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3463. [2022-03-20 03:08:04,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3458 states have (on average 1.4462116830537883) internal successors, (5001), 3458 states have internal predecessors, (5001), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 5005 transitions. [2022-03-20 03:08:04,708 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 5005 transitions. Word has length 244 [2022-03-20 03:08:04,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:04,710 INFO L478 AbstractCegarLoop]: Abstraction has 3463 states and 5005 transitions. [2022-03-20 03:08:04,710 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:04,710 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 5005 transitions. [2022-03-20 03:08:04,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-03-20 03:08:04,714 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:04,714 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:04,714 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 03:08:04,715 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:04,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:04,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1286257332, now seen corresponding path program 1 times [2022-03-20 03:08:04,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:04,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534939175] [2022-03-20 03:08:04,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:04,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:04,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-03-20 03:08:04,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:04,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534939175] [2022-03-20 03:08:04,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534939175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:04,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:04,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:08:04,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193641633] [2022-03-20 03:08:04,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:04,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:08:04,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:04,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:08:04,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:04,884 INFO L87 Difference]: Start difference. First operand 3463 states and 5005 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:06,511 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 [] [2022-03-20 03:08:07,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:07,500 INFO L93 Difference]: Finished difference Result 7378 states and 10686 transitions. [2022-03-20 03:08:07,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:08:07,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 276 [2022-03-20 03:08:07,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:07,505 INFO L225 Difference]: With dead ends: 7378 [2022-03-20 03:08:07,505 INFO L226 Difference]: Without dead ends: 3943 [2022-03-20 03:08:07,508 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:07,509 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:07,509 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 594 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:08:07,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2022-03-20 03:08:07,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3943. [2022-03-20 03:08:07,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3943 states, 3938 states have (on average 1.4456576942610462) internal successors, (5693), 3938 states have internal predecessors, (5693), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:07,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 5697 transitions. [2022-03-20 03:08:07,579 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 5697 transitions. Word has length 276 [2022-03-20 03:08:07,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:07,580 INFO L478 AbstractCegarLoop]: Abstraction has 3943 states and 5697 transitions. [2022-03-20 03:08:07,580 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:07,580 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 5697 transitions. [2022-03-20 03:08:07,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-03-20 03:08:07,584 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:07,584 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:07,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 03:08:07,584 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:07,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:07,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1534403826, now seen corresponding path program 1 times [2022-03-20 03:08:07,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:07,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918321768] [2022-03-20 03:08:07,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:07,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:07,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:07,737 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-20 03:08:07,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:07,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918321768] [2022-03-20 03:08:07,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918321768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:07,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:07,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:08:07,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220964140] [2022-03-20 03:08:07,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:07,738 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:08:07,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:07,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:08:07,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:07,739 INFO L87 Difference]: Start difference. First operand 3943 states and 5697 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:09,592 INFO L93 Difference]: Finished difference Result 8312 states and 12034 transitions. [2022-03-20 03:08:09,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:08:09,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 276 [2022-03-20 03:08:09,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:09,598 INFO L225 Difference]: With dead ends: 8312 [2022-03-20 03:08:09,598 INFO L226 Difference]: Without dead ends: 4397 [2022-03-20 03:08:09,601 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:09,601 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:09,602 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 03:08:09,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4397 states. [2022-03-20 03:08:09,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4397 to 4397. [2022-03-20 03:08:09,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 4392 states have (on average 1.4448998178506376) internal successors, (6346), 4392 states have internal predecessors, (6346), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:09,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 6350 transitions. [2022-03-20 03:08:09,656 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 6350 transitions. Word has length 276 [2022-03-20 03:08:09,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:09,657 INFO L478 AbstractCegarLoop]: Abstraction has 4397 states and 6350 transitions. [2022-03-20 03:08:09,657 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:09,657 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 6350 transitions. [2022-03-20 03:08:09,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-03-20 03:08:09,665 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:09,665 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:09,665 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 03:08:09,665 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2131522909, now seen corresponding path program 1 times [2022-03-20 03:08:09,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:09,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860767912] [2022-03-20 03:08:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:09,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:09,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:09,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-03-20 03:08:09,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:09,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860767912] [2022-03-20 03:08:09,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860767912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:09,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:09,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:08:09,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067048269] [2022-03-20 03:08:09,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:09,849 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:08:09,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:09,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:08:09,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:09,849 INFO L87 Difference]: Start difference. First operand 4397 states and 6350 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:11,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:12,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:12,202 INFO L93 Difference]: Finished difference Result 9253 states and 13387 transitions. [2022-03-20 03:08:12,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:08:12,202 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 351 [2022-03-20 03:08:12,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:12,233 INFO L225 Difference]: With dead ends: 9253 [2022-03-20 03:08:12,233 INFO L226 Difference]: Without dead ends: 4884 [2022-03-20 03:08:12,238 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:12,238 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:12,238 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 385 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:08:12,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2022-03-20 03:08:12,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4884. [2022-03-20 03:08:12,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4884 states, 4879 states have (on average 1.4464029514244723) internal successors, (7057), 4879 states have internal predecessors, (7057), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:12,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4884 states to 4884 states and 7061 transitions. [2022-03-20 03:08:12,384 INFO L78 Accepts]: Start accepts. Automaton has 4884 states and 7061 transitions. Word has length 351 [2022-03-20 03:08:12,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:12,384 INFO L478 AbstractCegarLoop]: Abstraction has 4884 states and 7061 transitions. [2022-03-20 03:08:12,384 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:12,384 INFO L276 IsEmpty]: Start isEmpty. Operand 4884 states and 7061 transitions. [2022-03-20 03:08:12,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-03-20 03:08:12,390 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:12,390 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:12,390 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 03:08:12,391 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:12,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:12,392 INFO L85 PathProgramCache]: Analyzing trace with hash -2032087717, now seen corresponding path program 1 times [2022-03-20 03:08:12,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:12,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970820550] [2022-03-20 03:08:12,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:12,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:12,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:12,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-03-20 03:08:12,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:12,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970820550] [2022-03-20 03:08:12,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970820550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:12,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:12,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:08:12,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858988073] [2022-03-20 03:08:12,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:12,579 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:08:12,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:12,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:08:12,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:12,580 INFO L87 Difference]: Start difference. First operand 4884 states and 7061 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:14,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:14,640 INFO L93 Difference]: Finished difference Result 10227 states and 14809 transitions. [2022-03-20 03:08:14,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:08:14,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 392 [2022-03-20 03:08:14,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:14,647 INFO L225 Difference]: With dead ends: 10227 [2022-03-20 03:08:14,647 INFO L226 Difference]: Without dead ends: 5371 [2022-03-20 03:08:14,652 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:14,652 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:14,652 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 384 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 03:08:14,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2022-03-20 03:08:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2022-03-20 03:08:14,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 5366 states have (on average 1.4478196049198657) internal successors, (7769), 5366 states have internal predecessors, (7769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:14,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 7773 transitions. [2022-03-20 03:08:14,755 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 7773 transitions. Word has length 392 [2022-03-20 03:08:14,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:14,755 INFO L478 AbstractCegarLoop]: Abstraction has 5371 states and 7773 transitions. [2022-03-20 03:08:14,755 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:14,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 7773 transitions. [2022-03-20 03:08:14,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-03-20 03:08:14,761 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:14,762 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:14,762 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 03:08:14,762 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:14,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:14,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2031073003, now seen corresponding path program 1 times [2022-03-20 03:08:14,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:14,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709013615] [2022-03-20 03:08:14,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:14,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:14,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-03-20 03:08:14,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:14,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709013615] [2022-03-20 03:08:14,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709013615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:14,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:14,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:08:14,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333993280] [2022-03-20 03:08:14,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:14,954 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:08:14,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:14,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:08:14,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:14,954 INFO L87 Difference]: Start difference. First operand 5371 states and 7773 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:16,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:16,701 INFO L93 Difference]: Finished difference Result 11195 states and 16224 transitions. [2022-03-20 03:08:16,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:08:16,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 399 [2022-03-20 03:08:16,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:16,706 INFO L225 Difference]: With dead ends: 11195 [2022-03-20 03:08:16,706 INFO L226 Difference]: Without dead ends: 5852 [2022-03-20 03:08:16,712 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:16,712 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:16,712 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 03:08:16,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5852 states. [2022-03-20 03:08:16,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5852 to 5852. [2022-03-20 03:08:16,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5852 states, 5847 states have (on average 1.4472378997776638) internal successors, (8462), 5847 states have internal predecessors, (8462), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:16,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5852 states to 5852 states and 8466 transitions. [2022-03-20 03:08:16,794 INFO L78 Accepts]: Start accepts. Automaton has 5852 states and 8466 transitions. Word has length 399 [2022-03-20 03:08:16,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:16,794 INFO L478 AbstractCegarLoop]: Abstraction has 5852 states and 8466 transitions. [2022-03-20 03:08:16,794 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:16,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5852 states and 8466 transitions. [2022-03-20 03:08:16,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-03-20 03:08:16,802 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:16,802 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:16,802 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 03:08:16,802 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:16,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:16,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2048463644, now seen corresponding path program 1 times [2022-03-20 03:08:16,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:16,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120989448] [2022-03-20 03:08:16,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:16,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:17,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2119 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2022-03-20 03:08:17,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:17,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120989448] [2022-03-20 03:08:17,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120989448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:17,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:17,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:08:17,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343160796] [2022-03-20 03:08:17,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:17,026 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:08:17,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:17,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:08:17,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:17,027 INFO L87 Difference]: Start difference. First operand 5852 states and 8466 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:18,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:20,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:20,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:20,531 INFO L93 Difference]: Finished difference Result 12163 states and 17619 transitions. [2022-03-20 03:08:20,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:08:20,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 475 [2022-03-20 03:08:20,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:20,537 INFO L225 Difference]: With dead ends: 12163 [2022-03-20 03:08:20,538 INFO L226 Difference]: Without dead ends: 6339 [2022-03-20 03:08:20,543 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:20,544 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:20,544 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 382 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 03:08:20,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6339 states. [2022-03-20 03:08:20,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6339 to 6339. [2022-03-20 03:08:20,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6339 states, 6334 states have (on average 1.4486896116198296) internal successors, (9176), 6334 states have internal predecessors, (9176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:20,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6339 states to 6339 states and 9180 transitions. [2022-03-20 03:08:20,630 INFO L78 Accepts]: Start accepts. Automaton has 6339 states and 9180 transitions. Word has length 475 [2022-03-20 03:08:20,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:20,668 INFO L478 AbstractCegarLoop]: Abstraction has 6339 states and 9180 transitions. [2022-03-20 03:08:20,668 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:20,668 INFO L276 IsEmpty]: Start isEmpty. Operand 6339 states and 9180 transitions. [2022-03-20 03:08:20,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-03-20 03:08:20,679 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:20,680 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:20,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 03:08:20,681 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:20,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:20,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1315373064, now seen corresponding path program 1 times [2022-03-20 03:08:20,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:20,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813810495] [2022-03-20 03:08:20,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:20,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:20,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 744 proven. 7 refuted. 0 times theorem prover too weak. 1761 trivial. 0 not checked. [2022-03-20 03:08:20,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:20,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813810495] [2022-03-20 03:08:20,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813810495] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:08:20,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141883688] [2022-03-20 03:08:20,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:20,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:08:20,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:08:20,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:08:20,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 03:08:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:22,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 2420 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-20 03:08:22,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:08:22,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 1805 trivial. 0 not checked. [2022-03-20 03:08:22,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 03:08:22,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141883688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:22,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 03:08:22,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-20 03:08:22,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042432526] [2022-03-20 03:08:22,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:22,674 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 03:08:22,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:22,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 03:08:22,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 03:08:22,674 INFO L87 Difference]: Start difference. First operand 6339 states and 9180 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:22,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:22,788 INFO L93 Difference]: Finished difference Result 13137 states and 19047 transitions. [2022-03-20 03:08:22,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 03:08:22,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 517 [2022-03-20 03:08:22,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:22,794 INFO L225 Difference]: With dead ends: 13137 [2022-03-20 03:08:22,794 INFO L226 Difference]: Without dead ends: 6826 [2022-03-20 03:08:22,800 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 03:08:22,800 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:22,800 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 384 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 03:08:22,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6826 states. [2022-03-20 03:08:22,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6826 to 6826. [2022-03-20 03:08:22,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6826 states, 6821 states have (on average 1.4500806333382201) internal successors, (9891), 6821 states have internal predecessors, (9891), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:22,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6826 states to 6826 states and 9895 transitions. [2022-03-20 03:08:22,929 INFO L78 Accepts]: Start accepts. Automaton has 6826 states and 9895 transitions. Word has length 517 [2022-03-20 03:08:22,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:22,930 INFO L478 AbstractCegarLoop]: Abstraction has 6826 states and 9895 transitions. [2022-03-20 03:08:22,930 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:22,930 INFO L276 IsEmpty]: Start isEmpty. Operand 6826 states and 9895 transitions. [2022-03-20 03:08:22,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-03-20 03:08:22,937 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:22,937 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:22,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 03:08:23,150 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-03-20 03:08:23,150 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:23,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:23,150 INFO L85 PathProgramCache]: Analyzing trace with hash 627561574, now seen corresponding path program 1 times [2022-03-20 03:08:23,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:23,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915499109] [2022-03-20 03:08:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:23,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-03-20 03:08:23,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:23,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915499109] [2022-03-20 03:08:23,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915499109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:23,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:23,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:08:23,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529555036] [2022-03-20 03:08:23,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:23,454 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:08:23,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:23,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:08:23,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:08:23,454 INFO L87 Difference]: Start difference. First operand 6826 states and 9895 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:26,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:26,711 INFO L93 Difference]: Finished difference Result 14758 states and 21361 transitions. [2022-03-20 03:08:26,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:08:26,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-03-20 03:08:26,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:26,719 INFO L225 Difference]: With dead ends: 14758 [2022-03-20 03:08:26,719 INFO L226 Difference]: Without dead ends: 7960 [2022-03-20 03:08:26,726 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:08:26,733 INFO L913 BasicCegarLoop]: 286 mSDtfsCounter, 66 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:26,733 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 703 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 03:08:26,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7960 states. [2022-03-20 03:08:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7960 to 7400. [2022-03-20 03:08:26,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7400 states, 7395 states have (on average 1.4511156186612577) internal successors, (10731), 7395 states have internal predecessors, (10731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:26,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7400 states to 7400 states and 10735 transitions. [2022-03-20 03:08:26,869 INFO L78 Accepts]: Start accepts. Automaton has 7400 states and 10735 transitions. Word has length 525 [2022-03-20 03:08:26,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:26,870 INFO L478 AbstractCegarLoop]: Abstraction has 7400 states and 10735 transitions. [2022-03-20 03:08:26,870 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:26,870 INFO L276 IsEmpty]: Start isEmpty. Operand 7400 states and 10735 transitions. [2022-03-20 03:08:26,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-03-20 03:08:26,878 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:26,879 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:26,879 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 03:08:26,879 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:26,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:26,879 INFO L85 PathProgramCache]: Analyzing trace with hash -229264670, now seen corresponding path program 1 times [2022-03-20 03:08:26,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:26,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865612159] [2022-03-20 03:08:26,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:26,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:27,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 2135 trivial. 0 not checked. [2022-03-20 03:08:27,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:27,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865612159] [2022-03-20 03:08:27,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865612159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:27,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:27,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:08:27,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746509293] [2022-03-20 03:08:27,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:27,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:08:27,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:27,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:08:27,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:27,157 INFO L87 Difference]: Start difference. First operand 7400 states and 10735 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:29,611 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 [] [2022-03-20 03:08:30,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:30,093 INFO L93 Difference]: Finished difference Result 15295 states and 22210 transitions. [2022-03-20 03:08:30,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:08:30,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-03-20 03:08:30,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:30,104 INFO L225 Difference]: With dead ends: 15295 [2022-03-20 03:08:30,104 INFO L226 Difference]: Without dead ends: 7923 [2022-03-20 03:08:30,113 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:30,115 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:30,115 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 03:08:30,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7923 states. [2022-03-20 03:08:30,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7923 to 7923. [2022-03-20 03:08:30,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7923 states, 7918 states have (on average 1.4504925486233897) internal successors, (11485), 7918 states have internal predecessors, (11485), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:30,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7923 states to 7923 states and 11489 transitions. [2022-03-20 03:08:30,279 INFO L78 Accepts]: Start accepts. Automaton has 7923 states and 11489 transitions. Word has length 525 [2022-03-20 03:08:30,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:30,280 INFO L478 AbstractCegarLoop]: Abstraction has 7923 states and 11489 transitions. [2022-03-20 03:08:30,280 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:30,280 INFO L276 IsEmpty]: Start isEmpty. Operand 7923 states and 11489 transitions. [2022-03-20 03:08:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2022-03-20 03:08:30,290 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:30,290 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 8, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:30,291 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 03:08:30,291 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:30,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:30,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1052727734, now seen corresponding path program 1 times [2022-03-20 03:08:30,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:30,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298768036] [2022-03-20 03:08:30,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:30,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:30,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:30,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 849 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-03-20 03:08:30,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:30,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298768036] [2022-03-20 03:08:30,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298768036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:30,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:30,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:08:30,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267169273] [2022-03-20 03:08:30,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:30,634 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:08:30,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:30,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:08:30,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:30,635 INFO L87 Difference]: Start difference. First operand 7923 states and 11489 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:32,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:32,842 INFO L93 Difference]: Finished difference Result 16346 states and 23725 transitions. [2022-03-20 03:08:32,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:08:32,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 602 [2022-03-20 03:08:32,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:32,850 INFO L225 Difference]: With dead ends: 16346 [2022-03-20 03:08:32,850 INFO L226 Difference]: Without dead ends: 8451 [2022-03-20 03:08:32,856 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:32,857 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:32,857 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 379 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 03:08:32,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8451 states. [2022-03-20 03:08:33,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8451 to 8451. [2022-03-20 03:08:33,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8451 states, 8446 states have (on average 1.451811508406346) internal successors, (12262), 8446 states have internal predecessors, (12262), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:33,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8451 states to 8451 states and 12266 transitions. [2022-03-20 03:08:33,031 INFO L78 Accepts]: Start accepts. Automaton has 8451 states and 12266 transitions. Word has length 602 [2022-03-20 03:08:33,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:33,031 INFO L478 AbstractCegarLoop]: Abstraction has 8451 states and 12266 transitions. [2022-03-20 03:08:33,031 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:33,032 INFO L276 IsEmpty]: Start isEmpty. Operand 8451 states and 12266 transitions. [2022-03-20 03:08:33,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-03-20 03:08:33,042 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:33,042 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:33,042 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 03:08:33,042 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:33,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:33,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1295387989, now seen corresponding path program 1 times [2022-03-20 03:08:33,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:33,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328114298] [2022-03-20 03:08:33,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:33,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:33,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3915 backedges. 914 proven. 0 refuted. 0 times theorem prover too weak. 3001 trivial. 0 not checked. [2022-03-20 03:08:33,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:33,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328114298] [2022-03-20 03:08:33,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328114298] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:33,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:33,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:08:33,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725570504] [2022-03-20 03:08:33,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:33,363 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:08:33,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:33,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:08:33,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:33,363 INFO L87 Difference]: Start difference. First operand 8451 states and 12266 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:34,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:35,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:35,773 INFO L93 Difference]: Finished difference Result 8981 states and 13046 transitions. [2022-03-20 03:08:35,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:08:35,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-03-20 03:08:35,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:35,783 INFO L225 Difference]: With dead ends: 8981 [2022-03-20 03:08:35,783 INFO L226 Difference]: Without dead ends: 8979 [2022-03-20 03:08:35,785 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:08:35,786 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:35,786 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 378 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:08:35,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8979 states. [2022-03-20 03:08:35,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8979 to 8979. [2022-03-20 03:08:35,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8979 states, 8974 states have (on average 1.4530866948963672) internal successors, (13040), 8974 states have internal predecessors, (13040), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8979 states to 8979 states and 13044 transitions. [2022-03-20 03:08:35,976 INFO L78 Accepts]: Start accepts. Automaton has 8979 states and 13044 transitions. Word has length 645 [2022-03-20 03:08:35,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:35,977 INFO L478 AbstractCegarLoop]: Abstraction has 8979 states and 13044 transitions. [2022-03-20 03:08:35,977 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:35,977 INFO L276 IsEmpty]: Start isEmpty. Operand 8979 states and 13044 transitions. [2022-03-20 03:08:35,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2022-03-20 03:08:35,989 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:35,990 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:35,990 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 03:08:35,990 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:35,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:35,990 INFO L85 PathProgramCache]: Analyzing trace with hash -802891572, now seen corresponding path program 1 times [2022-03-20 03:08:35,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:35,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257817706] [2022-03-20 03:08:35,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:35,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:36,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:36,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1710 proven. 48 refuted. 0 times theorem prover too weak. 2188 trivial. 0 not checked. [2022-03-20 03:08:36,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:36,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257817706] [2022-03-20 03:08:36,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257817706] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:08:36,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063485517] [2022-03-20 03:08:36,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:36,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:08:36,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:08:36,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:08:36,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 03:08:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:37,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 2912 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-20 03:08:37,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:08:37,738 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:08:37,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:08:37,826 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 03:08:37,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 03:08:38,116 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 03:08:38,182 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:08:38,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:08:38,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:08:38,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 03:08:38,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 03:08:38,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 03:08:38,345 INFO L356 Elim1Store]: treesize reduction 108, result has 34.9 percent of original size [2022-03-20 03:08:38,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 77 [2022-03-20 03:08:38,438 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-03-20 03:08:38,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 49 [2022-03-20 03:08:38,652 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:08:38,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 03:08:38,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 2435 proven. 212 refuted. 0 times theorem prover too weak. 1299 trivial. 0 not checked. [2022-03-20 03:08:38,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:08:39,365 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-03-20 03:08:39,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-03-20 03:08:41,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 2245 proven. 0 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2022-03-20 03:08:41,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063485517] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 03:08:41,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 03:08:41,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 14] total 20 [2022-03-20 03:08:41,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123531607] [2022-03-20 03:08:41,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:41,377 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 03:08:41,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:41,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 03:08:41,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-03-20 03:08:41,377 INFO L87 Difference]: Start difference. First operand 8979 states and 13044 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:48,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:48,006 INFO L93 Difference]: Finished difference Result 26430 states and 38498 transitions. [2022-03-20 03:08:48,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 03:08:48,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 654 [2022-03-20 03:08:48,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:48,029 INFO L225 Difference]: With dead ends: 26430 [2022-03-20 03:08:48,029 INFO L226 Difference]: Without dead ends: 17479 [2022-03-20 03:08:48,042 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1325 GetRequests, 1303 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2022-03-20 03:08:48,043 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 277 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 114 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:48,043 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 1152 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 633 Invalid, 0 Unknown, 114 Unchecked, 2.3s Time] [2022-03-20 03:08:48,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17479 states. [2022-03-20 03:08:48,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17479 to 15062. [2022-03-20 03:08:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15062 states, 15057 states have (on average 1.4686192468619246) internal successors, (22113), 15057 states have internal predecessors, (22113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:48,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15062 states to 15062 states and 22117 transitions. [2022-03-20 03:08:48,359 INFO L78 Accepts]: Start accepts. Automaton has 15062 states and 22117 transitions. Word has length 654 [2022-03-20 03:08:48,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:48,360 INFO L478 AbstractCegarLoop]: Abstraction has 15062 states and 22117 transitions. [2022-03-20 03:08:48,360 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:48,360 INFO L276 IsEmpty]: Start isEmpty. Operand 15062 states and 22117 transitions. [2022-03-20 03:08:48,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-03-20 03:08:48,380 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:48,380 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:48,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-20 03:08:48,595 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,SelfDestructingSolverStorable54 [2022-03-20 03:08:48,596 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:48,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:48,596 INFO L85 PathProgramCache]: Analyzing trace with hash -750557904, now seen corresponding path program 1 times [2022-03-20 03:08:48,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:48,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849614142] [2022-03-20 03:08:48,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:48,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:48,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:48,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 2140 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2022-03-20 03:08:48,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:48,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849614142] [2022-03-20 03:08:48,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849614142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:48,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:48,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:08:48,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289314892] [2022-03-20 03:08:48,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:48,845 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:08:48,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:48,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:08:48,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:08:48,846 INFO L87 Difference]: Start difference. First operand 15062 states and 22117 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:51,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:51,912 INFO L93 Difference]: Finished difference Result 31224 states and 45740 transitions. [2022-03-20 03:08:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:08:51,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 656 [2022-03-20 03:08:51,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:51,934 INFO L225 Difference]: With dead ends: 31224 [2022-03-20 03:08:51,934 INFO L226 Difference]: Without dead ends: 16190 [2022-03-20 03:08:51,964 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:08:51,965 INFO L913 BasicCegarLoop]: 285 mSDtfsCounter, 64 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:51,965 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 701 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 03:08:51,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16190 states. [2022-03-20 03:08:52,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16190 to 15079. [2022-03-20 03:08:52,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15079 states, 15074 states have (on average 1.468090752288709) internal successors, (22130), 15074 states have internal predecessors, (22130), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:52,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15079 states to 15079 states and 22134 transitions. [2022-03-20 03:08:52,281 INFO L78 Accepts]: Start accepts. Automaton has 15079 states and 22134 transitions. Word has length 656 [2022-03-20 03:08:52,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:52,282 INFO L478 AbstractCegarLoop]: Abstraction has 15079 states and 22134 transitions. [2022-03-20 03:08:52,282 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:52,282 INFO L276 IsEmpty]: Start isEmpty. Operand 15079 states and 22134 transitions. [2022-03-20 03:08:52,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2022-03-20 03:08:52,298 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:52,298 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:52,298 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 03:08:52,298 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:52,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:52,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1628225588, now seen corresponding path program 1 times [2022-03-20 03:08:52,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:52,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381029523] [2022-03-20 03:08:52,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:52,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:52,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4578 backedges. 2484 proven. 0 refuted. 0 times theorem prover too weak. 2094 trivial. 0 not checked. [2022-03-20 03:08:52,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:52,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381029523] [2022-03-20 03:08:52,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381029523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:08:52,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:08:52,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:08:52,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704275675] [2022-03-20 03:08:52,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:08:52,529 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:08:52,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:08:52,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:08:52,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:08:52,529 INFO L87 Difference]: Start difference. First operand 15079 states and 22134 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:53,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:55,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:57,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:08:58,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:08:58,250 INFO L93 Difference]: Finished difference Result 31113 states and 45560 transitions. [2022-03-20 03:08:58,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:08:58,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 698 [2022-03-20 03:08:58,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:08:58,266 INFO L225 Difference]: With dead ends: 31113 [2022-03-20 03:08:58,266 INFO L226 Difference]: Without dead ends: 16062 [2022-03-20 03:08:58,276 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:08:58,277 INFO L913 BasicCegarLoop]: 281 mSDtfsCounter, 79 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:08:58,277 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 693 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 03:08:58,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16062 states. [2022-03-20 03:08:58,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16062 to 15079. [2022-03-20 03:08:58,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15079 states, 15074 states have (on average 1.4659678917341117) internal successors, (22098), 15074 states have internal predecessors, (22098), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:58,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15079 states to 15079 states and 22102 transitions. [2022-03-20 03:08:58,508 INFO L78 Accepts]: Start accepts. Automaton has 15079 states and 22102 transitions. Word has length 698 [2022-03-20 03:08:58,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:08:58,509 INFO L478 AbstractCegarLoop]: Abstraction has 15079 states and 22102 transitions. [2022-03-20 03:08:58,509 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:08:58,509 INFO L276 IsEmpty]: Start isEmpty. Operand 15079 states and 22102 transitions. [2022-03-20 03:08:58,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-03-20 03:08:58,525 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:08:58,526 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:08:58,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-20 03:08:58,526 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:08:58,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:08:58,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1196923068, now seen corresponding path program 1 times [2022-03-20 03:08:58,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:08:58,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292391033] [2022-03-20 03:08:58,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:58,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:08:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:58,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:08:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:08:58,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4755 backedges. 2590 proven. 34 refuted. 0 times theorem prover too weak. 2131 trivial. 0 not checked. [2022-03-20 03:08:58,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:08:58,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292391033] [2022-03-20 03:08:58,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292391033] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:08:58,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976104812] [2022-03-20 03:08:58,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:08:58,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:08:58,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:08:58,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:08:58,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 03:09:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:00,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 3108 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-20 03:09:00,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:09:00,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 03:09:00,709 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-03-20 03:09:00,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 78 [2022-03-20 03:09:00,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-20 03:09:00,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-20 03:09:00,833 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-03-20 03:09:00,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 21 [2022-03-20 03:09:00,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-20 03:09:00,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-20 03:09:00,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 03:09:01,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4755 backedges. 2574 proven. 0 refuted. 0 times theorem prover too weak. 2181 trivial. 0 not checked. [2022-03-20 03:09:01,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 03:09:01,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976104812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:09:01,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 03:09:01,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-03-20 03:09:01,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163287460] [2022-03-20 03:09:01,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:09:01,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:09:01,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:09:01,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:09:01,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-20 03:09:01,176 INFO L87 Difference]: Start difference. First operand 15079 states and 22102 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:02,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:09:02,361 INFO L93 Difference]: Finished difference Result 30997 states and 45394 transitions. [2022-03-20 03:09:02,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:09:02,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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 704 [2022-03-20 03:09:02,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:09:02,376 INFO L225 Difference]: With dead ends: 30997 [2022-03-20 03:09:02,376 INFO L226 Difference]: Without dead ends: 15946 [2022-03-20 03:09:02,388 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-20 03:09:02,389 INFO L913 BasicCegarLoop]: 290 mSDtfsCounter, 67 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:09:02,389 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 709 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-20 03:09:02,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15946 states. [2022-03-20 03:09:02,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15946 to 15266. [2022-03-20 03:09:02,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15266 states, 15261 states have (on average 1.4669418779896468) internal successors, (22387), 15261 states have internal predecessors, (22387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:02,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15266 states to 15266 states and 22391 transitions. [2022-03-20 03:09:02,623 INFO L78 Accepts]: Start accepts. Automaton has 15266 states and 22391 transitions. Word has length 704 [2022-03-20 03:09:02,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:09:02,623 INFO L478 AbstractCegarLoop]: Abstraction has 15266 states and 22391 transitions. [2022-03-20 03:09:02,623 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:02,623 INFO L276 IsEmpty]: Start isEmpty. Operand 15266 states and 22391 transitions. [2022-03-20 03:09:02,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-03-20 03:09:02,639 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:09:02,640 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:09:02,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-20 03:09:02,853 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:09:02,854 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:09:02,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:09:02,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1120016460, now seen corresponding path program 1 times [2022-03-20 03:09:02,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:09:02,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488636329] [2022-03-20 03:09:02,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:09:02,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:09:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:03,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:09:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:03,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 2525 proven. 0 refuted. 0 times theorem prover too weak. 2237 trivial. 0 not checked. [2022-03-20 03:09:03,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:09:03,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488636329] [2022-03-20 03:09:03,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488636329] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:09:03,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:09:03,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:09:03,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228221421] [2022-03-20 03:09:03,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:09:03,172 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:09:03,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:09:03,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:09:03,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:09:03,173 INFO L87 Difference]: Start difference. First operand 15266 states and 22391 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:05,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:09:06,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:09:06,267 INFO L93 Difference]: Finished difference Result 30641 states and 44924 transitions. [2022-03-20 03:09:06,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:09:06,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 706 [2022-03-20 03:09:06,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:09:06,285 INFO L225 Difference]: With dead ends: 30641 [2022-03-20 03:09:06,286 INFO L226 Difference]: Without dead ends: 15403 [2022-03-20 03:09:06,301 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:09:06,303 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 35 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:09:06,303 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 646 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 03:09:06,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15403 states. [2022-03-20 03:09:06,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15403 to 15079. [2022-03-20 03:09:06,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15079 states, 15074 states have (on average 1.464840122064482) internal successors, (22081), 15074 states have internal predecessors, (22081), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:06,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15079 states to 15079 states and 22085 transitions. [2022-03-20 03:09:06,621 INFO L78 Accepts]: Start accepts. Automaton has 15079 states and 22085 transitions. Word has length 706 [2022-03-20 03:09:06,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:09:06,622 INFO L478 AbstractCegarLoop]: Abstraction has 15079 states and 22085 transitions. [2022-03-20 03:09:06,622 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:06,622 INFO L276 IsEmpty]: Start isEmpty. Operand 15079 states and 22085 transitions. [2022-03-20 03:09:06,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2022-03-20 03:09:06,637 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:09:06,638 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:09:06,638 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-20 03:09:06,638 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:09:06,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:09:06,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1223537836, now seen corresponding path program 1 times [2022-03-20 03:09:06,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:09:06,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236828880] [2022-03-20 03:09:06,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:09:06,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:09:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:06,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:09:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:06,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4832 backedges. 2627 proven. 28 refuted. 0 times theorem prover too weak. 2177 trivial. 0 not checked. [2022-03-20 03:09:06,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:09:06,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236828880] [2022-03-20 03:09:06,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236828880] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:09:06,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565157485] [2022-03-20 03:09:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:09:06,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:09:06,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:09:06,894 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:09:06,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 03:09:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:08,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 3144 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 03:09:08,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:09:08,309 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:09:08,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:09:08,347 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:09:08,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 03:09:08,673 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 03:09:08,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-03-20 03:09:08,835 INFO L356 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-03-20 03:09:08,835 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 88 [2022-03-20 03:09:08,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:08,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-03-20 03:09:08,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:08,848 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-03-20 03:09:08,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-03-20 03:09:08,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:08,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-03-20 03:09:09,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 03:09:09,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4832 backedges. 2622 proven. 220 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2022-03-20 03:09:09,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:09:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 4832 backedges. 2617 proven. 0 refuted. 0 times theorem prover too weak. 2215 trivial. 0 not checked. [2022-03-20 03:09:10,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565157485] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 03:09:10,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 03:09:10,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-20 03:09:10,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226871876] [2022-03-20 03:09:10,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:09:10,029 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:09:10,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:09:10,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:09:10,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-20 03:09:10,029 INFO L87 Difference]: Start difference. First operand 15079 states and 22085 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:10,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:09:10,824 INFO L93 Difference]: Finished difference Result 32226 states and 47053 transitions. [2022-03-20 03:09:10,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:09:10,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 710 [2022-03-20 03:09:10,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:09:10,843 INFO L225 Difference]: With dead ends: 32226 [2022-03-20 03:09:10,843 INFO L226 Difference]: Without dead ends: 17175 [2022-03-20 03:09:10,858 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1430 GetRequests, 1420 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-20 03:09:10,859 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 120 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:09:10,859 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 577 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-20 03:09:10,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17175 states. [2022-03-20 03:09:11,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17175 to 15096. [2022-03-20 03:09:11,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15096 states, 15091 states have (on average 1.4643164800212047) internal successors, (22098), 15091 states have internal predecessors, (22098), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:11,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15096 states to 15096 states and 22102 transitions. [2022-03-20 03:09:11,163 INFO L78 Accepts]: Start accepts. Automaton has 15096 states and 22102 transitions. Word has length 710 [2022-03-20 03:09:11,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:09:11,163 INFO L478 AbstractCegarLoop]: Abstraction has 15096 states and 22102 transitions. [2022-03-20 03:09:11,164 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:11,164 INFO L276 IsEmpty]: Start isEmpty. Operand 15096 states and 22102 transitions. [2022-03-20 03:09:11,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-03-20 03:09:11,179 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:09:11,179 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:09:11,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-20 03:09:11,404 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-03-20 03:09:11,404 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:09:11,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:09:11,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1758664862, now seen corresponding path program 1 times [2022-03-20 03:09:11,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:09:11,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149864089] [2022-03-20 03:09:11,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:09:11,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:09:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:12,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:09:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2052 proven. 363 refuted. 0 times theorem prover too weak. 2444 trivial. 0 not checked. [2022-03-20 03:09:12,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:09:12,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149864089] [2022-03-20 03:09:12,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149864089] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:09:12,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873229379] [2022-03-20 03:09:12,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:09:12,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:09:12,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:09:12,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:09:12,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 03:09:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:13,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-20 03:09:13,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:09:13,687 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:09:13,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 03:09:13,934 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:09:13,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:09:14,029 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:09:14,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 03:09:14,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 03:09:14,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 03:09:14,205 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 03:09:14,206 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-03-20 03:09:14,265 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 03:09:14,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-03-20 03:09:14,351 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:09:14,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-03-20 03:09:14,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 03:09:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2445 proven. 215 refuted. 0 times theorem prover too weak. 2199 trivial. 0 not checked. [2022-03-20 03:09:14,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:09:14,760 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 38 treesize of output 26 [2022-03-20 03:09:14,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-20 03:09:17,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2258 proven. 0 refuted. 0 times theorem prover too weak. 2601 trivial. 0 not checked. [2022-03-20 03:09:17,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873229379] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 03:09:17,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 03:09:17,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 9] total 23 [2022-03-20 03:09:17,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99631446] [2022-03-20 03:09:17,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:09:17,075 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:09:17,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:09:17,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:09:17,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2022-03-20 03:09:17,076 INFO L87 Difference]: Start difference. First operand 15096 states and 22102 transitions. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:17,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:09:17,451 INFO L93 Difference]: Finished difference Result 32503 states and 47727 transitions. [2022-03-20 03:09:17,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:09:17,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-03-20 03:09:17,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:09:17,470 INFO L225 Difference]: With dead ends: 32503 [2022-03-20 03:09:17,470 INFO L226 Difference]: Without dead ends: 17435 [2022-03-20 03:09:17,485 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1446 GetRequests, 1424 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-03-20 03:09:17,485 INFO L913 BasicCegarLoop]: 314 mSDtfsCounter, 228 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 124 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:09:17,485 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 757 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 124 Unchecked, 0.1s Time] [2022-03-20 03:09:17,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17435 states. [2022-03-20 03:09:17,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17435 to 16342. [2022-03-20 03:09:17,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16342 states, 16337 states have (on average 1.4777498928811899) internal successors, (24142), 16337 states have internal predecessors, (24142), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:17,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16342 states to 16342 states and 24146 transitions. [2022-03-20 03:09:17,763 INFO L78 Accepts]: Start accepts. Automaton has 16342 states and 24146 transitions. Word has length 712 [2022-03-20 03:09:17,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:09:17,763 INFO L478 AbstractCegarLoop]: Abstraction has 16342 states and 24146 transitions. [2022-03-20 03:09:17,763 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:17,763 INFO L276 IsEmpty]: Start isEmpty. Operand 16342 states and 24146 transitions. [2022-03-20 03:09:17,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-03-20 03:09:17,782 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:09:17,782 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:09:17,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-20 03:09:17,995 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:09:17,995 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:09:17,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:09:17,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1522736410, now seen corresponding path program 1 times [2022-03-20 03:09:17,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:09:17,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145592823] [2022-03-20 03:09:17,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:09:17,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:09:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:18,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:09:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 4839 backedges. 2578 proven. 0 refuted. 0 times theorem prover too weak. 2261 trivial. 0 not checked. [2022-03-20 03:09:18,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:09:18,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145592823] [2022-03-20 03:09:18,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145592823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:09:18,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:09:18,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:09:18,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955515369] [2022-03-20 03:09:18,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:09:18,300 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:09:18,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:09:18,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:09:18,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:09:18,301 INFO L87 Difference]: Start difference. First operand 16342 states and 24146 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:22,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:09:23,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:09:23,492 INFO L93 Difference]: Finished difference Result 34354 states and 50719 transitions. [2022-03-20 03:09:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:09:23,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-03-20 03:09:23,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:09:23,512 INFO L225 Difference]: With dead ends: 34354 [2022-03-20 03:09:23,512 INFO L226 Difference]: Without dead ends: 18040 [2022-03-20 03:09:23,531 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:09:23,531 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 37 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:09:23,531 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 647 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 03:09:23,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18040 states. [2022-03-20 03:09:23,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18040 to 17334. [2022-03-20 03:09:23,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17334 states, 17329 states have (on average 1.4753880777886779) internal successors, (25567), 17329 states have internal predecessors, (25567), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:23,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17334 states to 17334 states and 25571 transitions. [2022-03-20 03:09:23,894 INFO L78 Accepts]: Start accepts. Automaton has 17334 states and 25571 transitions. Word has length 712 [2022-03-20 03:09:23,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:09:23,894 INFO L478 AbstractCegarLoop]: Abstraction has 17334 states and 25571 transitions. [2022-03-20 03:09:23,894 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:23,894 INFO L276 IsEmpty]: Start isEmpty. Operand 17334 states and 25571 transitions. [2022-03-20 03:09:23,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-03-20 03:09:23,914 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:09:23,914 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:09:23,915 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-20 03:09:23,915 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:09:23,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:09:23,915 INFO L85 PathProgramCache]: Analyzing trace with hash -686894626, now seen corresponding path program 1 times [2022-03-20 03:09:23,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:09:23,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698808596] [2022-03-20 03:09:23,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:09:23,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:09:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:09:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:24,817 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4859 trivial. 0 not checked. [2022-03-20 03:09:24,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:09:24,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698808596] [2022-03-20 03:09:24,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698808596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:09:24,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:09:24,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 03:09:24,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143287894] [2022-03-20 03:09:24,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:09:24,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 03:09:24,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:09:24,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 03:09:24,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 03:09:24,819 INFO L87 Difference]: Start difference. First operand 17334 states and 25571 transitions. Second operand has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:29,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:09:30,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:09:30,138 INFO L93 Difference]: Finished difference Result 34661 states and 51134 transitions. [2022-03-20 03:09:30,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 03:09:30,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-03-20 03:09:30,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:09:30,160 INFO L225 Difference]: With dead ends: 34661 [2022-03-20 03:09:30,160 INFO L226 Difference]: Without dead ends: 17334 [2022-03-20 03:09:30,253 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 03:09:30,253 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 7 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:09:30,253 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 932 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 03:09:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17334 states. [2022-03-20 03:09:30,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17334 to 17334. [2022-03-20 03:09:30,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17334 states, 17329 states have (on average 1.475330371054302) internal successors, (25566), 17329 states have internal predecessors, (25566), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:30,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17334 states to 17334 states and 25570 transitions. [2022-03-20 03:09:30,545 INFO L78 Accepts]: Start accepts. Automaton has 17334 states and 25570 transitions. Word has length 712 [2022-03-20 03:09:30,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:09:30,545 INFO L478 AbstractCegarLoop]: Abstraction has 17334 states and 25570 transitions. [2022-03-20 03:09:30,545 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 17334 states and 25570 transitions. [2022-03-20 03:09:30,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-03-20 03:09:30,562 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:09:30,563 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:09:30,563 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-20 03:09:30,563 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:09:30,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:09:30,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1537507868, now seen corresponding path program 1 times [2022-03-20 03:09:30,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:09:30,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592019122] [2022-03-20 03:09:30,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:09:30,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:09:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:32,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:09:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1539 proven. 2942 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-03-20 03:09:32,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:09:32,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592019122] [2022-03-20 03:09:32,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592019122] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:09:32,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751375622] [2022-03-20 03:09:32,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:09:32,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:09:32,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:09:32,185 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:09:32,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 03:09:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:09:33,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 3125 conjuncts, 92 conjunts are in the unsatisfiable core [2022-03-20 03:09:33,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:09:33,802 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:09:33,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:09:33,901 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 03:09:33,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 03:09:34,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 03:09:34,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:34,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-20 03:09:34,499 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 03:09:34,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-20 03:09:34,506 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:09:34,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-20 03:09:34,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:34,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 03:09:34,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:34,990 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 03:09:34,990 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-20 03:09:34,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:34,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 03:09:35,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:35,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 03:09:35,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:35,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 03:09:35,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:35,067 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 03:09:35,068 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-20 03:09:35,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:35,702 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 03:09:35,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-20 03:09:35,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:35,731 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 03:09:35,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-20 03:09:35,764 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-20 03:09:35,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-20 03:09:38,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,177 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 348 treesize of output 270 [2022-03-20 03:09:38,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:38,186 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 348 treesize of output 288 [2022-03-20 03:09:38,233 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-03-20 03:09:38,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 348 treesize of output 367 [2022-03-20 03:09:42,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:42,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:42,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:42,927 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 343 treesize of output 279 [2022-03-20 03:09:42,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:42,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:42,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:42,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 261 [2022-03-20 03:09:42,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:42,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:42,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:42,964 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-03-20 03:09:42,964 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 352 treesize of output 349 [2022-03-20 03:09:43,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:43,309 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 196 treesize of output 136 [2022-03-20 03:09:43,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:43,313 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 136 treesize of output 82 [2022-03-20 03:09:43,458 INFO L356 Elim1Store]: treesize reduction 151, result has 29.4 percent of original size [2022-03-20 03:09:43,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 110 treesize of output 138 [2022-03-20 03:09:43,557 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 03:09:43,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 03:09:43,683 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:09:43,684 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 03:09:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1764 proven. 573 refuted. 0 times theorem prover too weak. 2522 trivial. 0 not checked. [2022-03-20 03:09:43,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:09:46,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:09:46,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:09:46,070 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 268 treesize of output 214 [2022-03-20 03:09:48,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:09:48,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:09:48,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:09:48,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:09:48,586 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-03-20 03:09:48,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 1 [2022-03-20 03:09:49,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1895 proven. 141 refuted. 0 times theorem prover too weak. 2823 trivial. 0 not checked. [2022-03-20 03:09:49,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751375622] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:09:49,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:09:49,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 13] total 47 [2022-03-20 03:09:49,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543739129] [2022-03-20 03:09:49,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:09:49,009 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-03-20 03:09:49,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:09:49,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-03-20 03:09:49,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1874, Unknown=1, NotChecked=0, Total=2162 [2022-03-20 03:09:49,010 INFO L87 Difference]: Start difference. First operand 17334 states and 25570 transitions. Second operand has 47 states, 47 states have (on average 18.170212765957448) internal successors, (854), 46 states have internal predecessors, (854), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:09:50,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:09:52,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:09:54,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:09:55,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:09:57,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:09:58,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:10:00,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:10:02,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:10:04,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:10:06,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:10:08,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:10:10,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:10:12,230 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 [] [2022-03-20 03:12:29,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:12:29,415 INFO L93 Difference]: Finished difference Result 571712 states and 831566 transitions. [2022-03-20 03:12:29,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 960 states. [2022-03-20 03:12:29,416 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 18.170212765957448) internal successors, (854), 46 states have internal predecessors, (854), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-03-20 03:12:29,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:12:30,753 INFO L225 Difference]: With dead ends: 571712 [2022-03-20 03:12:30,754 INFO L226 Difference]: Without dead ends: 554304 [2022-03-20 03:12:30,920 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3165 GetRequests, 2153 SyntacticMatches, 24 SemanticMatches, 988 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 464797 ImplicationChecksByTransitivity, 76.6s TimeCoverageRelationStatistics Valid=81126, Invalid=897983, Unknown=1, NotChecked=0, Total=979110 [2022-03-20 03:12:30,920 INFO L913 BasicCegarLoop]: 1975 mSDtfsCounter, 12609 mSDsluCounter, 37032 mSDsCounter, 0 mSdLazyCounter, 40126 mSolverCounterSat, 2372 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12609 SdHoareTripleChecker+Valid, 39007 SdHoareTripleChecker+Invalid, 60283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2372 IncrementalHoareTripleChecker+Valid, 40126 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 17782 IncrementalHoareTripleChecker+Unchecked, 64.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:12:30,920 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12609 Valid, 39007 Invalid, 60283 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2372 Valid, 40126 Invalid, 3 Unknown, 17782 Unchecked, 64.0s Time] [2022-03-20 03:12:31,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554304 states. [2022-03-20 03:12:42,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554304 to 337341. [2022-03-20 03:12:42,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337341 states, 337336 states have (on average 1.4816533070884814) internal successors, (499815), 337336 states have internal predecessors, (499815), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:12:43,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337341 states to 337341 states and 499819 transitions. [2022-03-20 03:12:43,876 INFO L78 Accepts]: Start accepts. Automaton has 337341 states and 499819 transitions. Word has length 712 [2022-03-20 03:12:43,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:12:43,876 INFO L478 AbstractCegarLoop]: Abstraction has 337341 states and 499819 transitions. [2022-03-20 03:12:43,876 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 18.170212765957448) internal successors, (854), 46 states have internal predecessors, (854), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:12:43,876 INFO L276 IsEmpty]: Start isEmpty. Operand 337341 states and 499819 transitions. [2022-03-20 03:12:44,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2022-03-20 03:12:44,458 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:12:44,459 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:12:44,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-20 03:12:44,667 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:12:44,668 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:12:44,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:12:44,669 INFO L85 PathProgramCache]: Analyzing trace with hash -661721116, now seen corresponding path program 1 times [2022-03-20 03:12:44,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:12:44,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813229774] [2022-03-20 03:12:44,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:12:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:12:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:12:45,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:12:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:12:45,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 2053 proven. 390 refuted. 0 times theorem prover too weak. 2417 trivial. 0 not checked. [2022-03-20 03:12:45,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:12:45,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813229774] [2022-03-20 03:12:45,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813229774] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:12:45,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445390695] [2022-03-20 03:12:45,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:12:45,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:12:45,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:12:45,620 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) [2022-03-20 03:12:45,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-20 03:12:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:12:47,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 3177 conjuncts, 115 conjunts are in the unsatisfiable core [2022-03-20 03:12:47,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:12:47,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:47,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:12:47,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:47,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:47,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:47,664 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 03:12:47,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 03:12:47,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 03:12:47,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:47,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:12:48,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:48,049 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 03:12:48,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 03:12:48,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:48,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 03:12:48,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:48,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 03:12:48,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:48,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-20 03:12:48,256 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 03:12:48,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-20 03:12:48,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:48,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2022-03-20 03:12:48,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:48,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 03:12:48,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:48,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 03:12:48,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:48,841 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 03:12:48,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-20 03:12:48,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:48,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 03:12:48,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:48,932 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 03:12:48,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-20 03:12:48,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:48,936 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 80 treesize of output 67 [2022-03-20 03:12:49,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:49,645 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 03:12:49,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-20 03:12:49,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:49,676 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 03:12:49,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-20 03:12:49,716 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-20 03:12:49,716 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-20 03:12:50,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,918 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 325 treesize of output 253 [2022-03-20 03:12:50,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,925 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 325 treesize of output 271 [2022-03-20 03:12:50,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:50,955 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-03-20 03:12:50,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 325 treesize of output 344 [2022-03-20 03:12:54,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,439 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 320 treesize of output 262 [2022-03-20 03:12:54,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,444 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 320 treesize of output 244 [2022-03-20 03:12:54,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,460 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 03:12:54,460 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 320 treesize of output 314 [2022-03-20 03:12:54,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,706 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 03:12:54,706 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 227 treesize of output 204 [2022-03-20 03:12:54,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,709 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 186 treesize of output 120 [2022-03-20 03:12:54,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,743 INFO L356 Elim1Store]: treesize reduction 89, result has 25.2 percent of original size [2022-03-20 03:12:54,743 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 4 case distinctions, treesize of input 101 treesize of output 102 [2022-03-20 03:12:54,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,829 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 03:12:54,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 03:12:54,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:12:54,836 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 33 treesize of output 35 [2022-03-20 03:12:54,844 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 9 treesize of output 3 [2022-03-20 03:12:54,845 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-20 03:12:55,004 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 03:12:55,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 11 [2022-03-20 03:12:55,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 1824 proven. 889 refuted. 0 times theorem prover too weak. 2147 trivial. 0 not checked. [2022-03-20 03:12:55,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:13:00,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:13:00,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:13:00,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 714 treesize of output 552 [2022-03-20 03:13:00,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:13:01,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:13:01,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 924 treesize of output 768 [2022-03-20 03:13:19,681 INFO L356 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2022-03-20 03:13:19,682 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 810 treesize of output 1 [2022-03-20 03:13:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 1896 proven. 141 refuted. 0 times theorem prover too weak. 2823 trivial. 0 not checked. [2022-03-20 03:13:20,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445390695] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:13:20,066 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:13:20,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23, 14] total 48 [2022-03-20 03:13:20,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857978182] [2022-03-20 03:13:20,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:13:20,067 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-20 03:13:20,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:13:20,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-20 03:13:20,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=1980, Unknown=5, NotChecked=0, Total=2256 [2022-03-20 03:13:20,068 INFO L87 Difference]: Start difference. First operand 337341 states and 499819 transitions. Second operand has 48 states, 48 states have (on average 16.875) internal successors, (810), 46 states have internal predecessors, (810), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:13:21,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:13:23,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:13:25,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:13:27,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:13:30,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:13:32,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:14:32,846 WARN L232 SmtUtils]: Spent 10.06s on a formula simplification that was a NOOP. DAG size: 66 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 03:14:51,124 WARN L232 SmtUtils]: Spent 10.06s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 03:15:49,823 WARN L232 SmtUtils]: Spent 20.16s on a formula simplification. DAG size of input: 72 DAG size of output: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 03:17:04,338 WARN L232 SmtUtils]: Spent 20.14s on a formula simplification. DAG size of input: 70 DAG size of output: 70 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)