/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.06.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 02:49:59,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:49:59,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:49:59,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 02:49:59,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 02:49:59,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 02:49:59,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 02:49:59,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 02:49:59,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 02:49:59,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 02:49:59,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 02:49:59,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 02:49:59,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:49:59,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:49:59,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:49:59,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:49:59,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:49:59,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:49:59,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:49:59,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:49:59,634 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:49:59,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:49:59,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:49:59,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:49:59,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:49:59,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 02:49:59,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 02:49:59,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 02:49:59,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 02:49:59,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 02:49:59,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-20 02:49:59,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:49:59,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:49:59,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:49:59,653 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 02:49:59,687 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:49:59,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:49:59,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:49:59,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:49:59,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:49:59,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:49:59,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:49:59,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:49:59,690 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:49:59,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:49:59,691 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:49:59,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:49:59,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:49:59,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:49:59,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:49:59,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:49:59,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:49:59,692 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:49:59,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:49:59,693 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:49:59,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:49:59,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:49:59,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:49:59,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:49:59,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:49:59,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:49:59,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:49:59,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:49:59,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:49:59,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:49:59,695 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:49:59,695 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:49:59,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:49:59,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:49:59,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:49:59,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:49:59,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:49:59,937 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:49:59,937 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:49:59,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-03-20 02:50:00,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c8dc74c1/c7a2fc47b70d401bafcf446d78cc5448/FLAG8534b50a0 [2022-03-20 02:50:00,543 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:50:00,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-03-20 02:50:00,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c8dc74c1/c7a2fc47b70d401bafcf446d78cc5448/FLAG8534b50a0 [2022-03-20 02:50:00,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c8dc74c1/c7a2fc47b70d401bafcf446d78cc5448 [2022-03-20 02:50:00,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:50:00,830 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:50:00,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:50:00,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:50:00,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:50:00,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:50:00" (1/1) ... [2022-03-20 02:50:00,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e3e43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:00, skipping insertion in model container [2022-03-20 02:50:00,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:50:00" (1/1) ... [2022-03-20 02:50:00,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:50:00,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:50:01,237 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.06.i.cil-1.c[78520,78533] [2022-03-20 02:50:01,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:50:01,271 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:50:01,426 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.06.i.cil-1.c[78520,78533] [2022-03-20 02:50:01,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:50:01,443 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:50:01,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:01 WrapperNode [2022-03-20 02:50:01,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:50:01,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:50:01,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:50:01,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:50:01,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:01" (1/1) ... [2022-03-20 02:50:01,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:01" (1/1) ... [2022-03-20 02:50:01,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:01" (1/1) ... [2022-03-20 02:50:01,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:01" (1/1) ... [2022-03-20 02:50:01,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:01" (1/1) ... [2022-03-20 02:50:01,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:01" (1/1) ... [2022-03-20 02:50:01,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:01" (1/1) ... [2022-03-20 02:50:01,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:50:01,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:50:01,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:50:01,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:50:01,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:01" (1/1) ... [2022-03-20 02:50:01,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:50:01,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:50:01,616 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 02:50:01,622 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 02:50:01,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:50:01,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:50:01,647 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:50:01,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 02:50:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 02:50:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:50:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 02:50:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 02:50:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 02:50:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 02:50:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:50:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:50:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:50:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:50:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 02:50:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:50:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:50:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:50:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 02:50:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 02:50:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 02:50:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 02:50:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 02:50:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 02:50:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:50:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 02:50:01,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 02:50:01,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 02:50:01,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 02:50:01,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:50:01,855 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:50:01,856 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:50:02,517 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:50:03,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 02:50:03,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 02:50:03,043 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:50:03,050 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:50:03,051 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 02:50:03,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:50:03 BoogieIcfgContainer [2022-03-20 02:50:03,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:50:03,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:50:03,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:50:03,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:50:03,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:50:00" (1/3) ... [2022-03-20 02:50:03,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b19c047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:50:03, skipping insertion in model container [2022-03-20 02:50:03,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:01" (2/3) ... [2022-03-20 02:50:03,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b19c047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:50:03, skipping insertion in model container [2022-03-20 02:50:03,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:50:03" (3/3) ... [2022-03-20 02:50:03,059 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-1.c [2022-03-20 02:50:03,064 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:50:03,065 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:50:03,119 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:50:03,128 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 02:50:03,128 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:50:03,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 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 02:50:03,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-20 02:50:03,153 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:03,154 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 02:50:03,154 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:03,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:03,158 INFO L85 PathProgramCache]: Analyzing trace with hash -2054814794, now seen corresponding path program 1 times [2022-03-20 02:50:03,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:03,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382950659] [2022-03-20 02:50:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:03,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:03,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:03,755 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 02:50:03,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:03,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382950659] [2022-03-20 02:50:03,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382950659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:03,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:03,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:03,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750399423] [2022-03-20 02:50:03,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:03,763 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:03,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:03,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:03,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:03,799 INFO L87 Difference]: Start difference. First operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 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 02:50:05,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:05,654 INFO L93 Difference]: Finished difference Result 461 states and 788 transitions. [2022-03-20 02:50:05,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:05,661 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 02:50:05,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:05,671 INFO L225 Difference]: With dead ends: 461 [2022-03-20 02:50:05,671 INFO L226 Difference]: Without dead ends: 281 [2022-03-20 02:50:05,675 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 02:50:05,682 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 172 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:05,687 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 529 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:50:05,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-03-20 02:50:05,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 193. [2022-03-20 02:50:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.627659574468085) internal successors, (306), 188 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:05,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 310 transitions. [2022-03-20 02:50:05,770 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 310 transitions. Word has length 51 [2022-03-20 02:50:05,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:05,772 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 310 transitions. [2022-03-20 02:50:05,772 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 02:50:05,772 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 310 transitions. [2022-03-20 02:50:05,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-20 02:50:05,779 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:05,779 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 02:50:05,780 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:50:05,780 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:05,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:05,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1754606550, now seen corresponding path program 1 times [2022-03-20 02:50:05,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:05,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997519524] [2022-03-20 02:50:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:05,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:06,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:06,015 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 02:50:06,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:06,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997519524] [2022-03-20 02:50:06,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997519524] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:06,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:06,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:06,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926154592] [2022-03-20 02:50:06,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:06,017 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:06,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:06,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:06,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:06,018 INFO L87 Difference]: Start difference. First operand 193 states and 310 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 02:50:07,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:07,724 INFO L93 Difference]: Finished difference Result 399 states and 642 transitions. [2022-03-20 02:50:07,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:07,725 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 02:50:07,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:07,727 INFO L225 Difference]: With dead ends: 399 [2022-03-20 02:50:07,728 INFO L226 Difference]: Without dead ends: 221 [2022-03-20 02:50:07,729 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 02:50:07,730 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 22 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:07,730 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 547 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:50:07,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-03-20 02:50:07,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 204. [2022-03-20 02:50:07,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6331658291457287) internal successors, (325), 199 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:07,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 329 transitions. [2022-03-20 02:50:07,755 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 329 transitions. Word has length 52 [2022-03-20 02:50:07,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:07,759 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 329 transitions. [2022-03-20 02:50:07,759 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 02:50:07,759 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 329 transitions. [2022-03-20 02:50:07,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 02:50:07,761 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:07,761 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 02:50:07,761 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:50:07,761 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:07,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:07,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1892555779, now seen corresponding path program 1 times [2022-03-20 02:50:07,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:07,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005041387] [2022-03-20 02:50:07,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:07,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:07,974 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 02:50:07,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:07,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005041387] [2022-03-20 02:50:07,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005041387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:07,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:07,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:07,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306069597] [2022-03-20 02:50:07,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:07,976 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:07,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:07,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:07,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:07,977 INFO L87 Difference]: Start difference. First operand 204 states and 329 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 02:50:10,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:10,008 INFO L93 Difference]: Finished difference Result 399 states and 641 transitions. [2022-03-20 02:50:10,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:10,009 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 02:50:10,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:10,011 INFO L225 Difference]: With dead ends: 399 [2022-03-20 02:50:10,011 INFO L226 Difference]: Without dead ends: 221 [2022-03-20 02:50:10,012 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 02:50:10,013 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 24 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:10,014 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 549 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 02:50:10,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-03-20 02:50:10,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 204. [2022-03-20 02:50:10,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6281407035175879) internal successors, (324), 199 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:10,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 328 transitions. [2022-03-20 02:50:10,026 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 328 transitions. Word has length 65 [2022-03-20 02:50:10,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:10,027 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 328 transitions. [2022-03-20 02:50:10,027 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 02:50:10,027 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 328 transitions. [2022-03-20 02:50:10,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 02:50:10,028 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:10,028 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 02:50:10,029 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:50:10,029 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:10,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:10,029 INFO L85 PathProgramCache]: Analyzing trace with hash 2036186669, now seen corresponding path program 1 times [2022-03-20 02:50:10,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:10,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234400575] [2022-03-20 02:50:10,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:10,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:10,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:10,149 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 02:50:10,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:10,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234400575] [2022-03-20 02:50:10,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234400575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:10,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:10,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:10,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816768537] [2022-03-20 02:50:10,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:10,152 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:10,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:10,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:10,156 INFO L87 Difference]: Start difference. First operand 204 states and 328 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 02:50:11,311 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 02:50:13,501 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 02:50:13,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:13,938 INFO L93 Difference]: Finished difference Result 398 states and 639 transitions. [2022-03-20 02:50:13,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:13,938 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 02:50:13,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:13,940 INFO L225 Difference]: With dead ends: 398 [2022-03-20 02:50:13,940 INFO L226 Difference]: Without dead ends: 220 [2022-03-20 02:50:13,940 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 02:50:13,941 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 28 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:13,941 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 551 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 02:50:13,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-03-20 02:50:13,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 204. [2022-03-20 02:50:13,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6231155778894473) internal successors, (323), 199 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:13,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 327 transitions. [2022-03-20 02:50:13,953 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 327 transitions. Word has length 66 [2022-03-20 02:50:13,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:13,953 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 327 transitions. [2022-03-20 02:50:13,953 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 02:50:13,954 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 327 transitions. [2022-03-20 02:50:13,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 02:50:13,957 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:13,958 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 02:50:13,958 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:50:13,959 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:13,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:13,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1420769855, now seen corresponding path program 1 times [2022-03-20 02:50:13,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:13,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657717510] [2022-03-20 02:50:13,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:13,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:14,136 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 02:50:14,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:14,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657717510] [2022-03-20 02:50:14,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657717510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:14,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:14,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:14,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732404221] [2022-03-20 02:50:14,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:14,137 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:14,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:14,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:14,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:14,138 INFO L87 Difference]: Start difference. First operand 204 states and 327 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 02:50:17,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:17,077 INFO L93 Difference]: Finished difference Result 509 states and 820 transitions. [2022-03-20 02:50:17,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:17,078 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 02:50:17,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:17,080 INFO L225 Difference]: With dead ends: 509 [2022-03-20 02:50:17,080 INFO L226 Difference]: Without dead ends: 331 [2022-03-20 02:50:17,080 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 02:50:17,081 INFO L913 BasicCegarLoop]: 140 mSDtfsCounter, 167 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:17,082 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 410 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 02:50:17,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-03-20 02:50:17,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 216. [2022-03-20 02:50:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.6066350710900474) internal successors, (339), 211 states have internal predecessors, (339), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:17,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 343 transitions. [2022-03-20 02:50:17,093 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 343 transitions. Word has length 66 [2022-03-20 02:50:17,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:17,093 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 343 transitions. [2022-03-20 02:50:17,093 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 02:50:17,094 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 343 transitions. [2022-03-20 02:50:17,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 02:50:17,094 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:17,095 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 02:50:17,095 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:50:17,095 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:17,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:17,095 INFO L85 PathProgramCache]: Analyzing trace with hash 653945720, now seen corresponding path program 1 times [2022-03-20 02:50:17,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:17,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561565808] [2022-03-20 02:50:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:17,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:17,224 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 02:50:17,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:17,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561565808] [2022-03-20 02:50:17,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561565808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:17,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:17,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:17,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313043534] [2022-03-20 02:50:17,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:17,226 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:17,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:17,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:17,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:17,227 INFO L87 Difference]: Start difference. First operand 216 states and 343 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 02:50:19,237 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 02:50:19,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:19,858 INFO L93 Difference]: Finished difference Result 521 states and 834 transitions. [2022-03-20 02:50:19,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:19,859 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 02:50:19,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:19,861 INFO L225 Difference]: With dead ends: 521 [2022-03-20 02:50:19,861 INFO L226 Difference]: Without dead ends: 331 [2022-03-20 02:50:19,861 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 02:50:19,862 INFO L913 BasicCegarLoop]: 140 mSDtfsCounter, 161 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:19,862 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 410 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:50:19,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-03-20 02:50:19,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 221. [2022-03-20 02:50:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 216 states have (on average 1.6018518518518519) internal successors, (346), 216 states have internal predecessors, (346), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:19,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 350 transitions. [2022-03-20 02:50:19,871 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 350 transitions. Word has length 66 [2022-03-20 02:50:19,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:19,872 INFO L478 AbstractCegarLoop]: Abstraction has 221 states and 350 transitions. [2022-03-20 02:50:19,872 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 02:50:19,872 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 350 transitions. [2022-03-20 02:50:19,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 02:50:19,873 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:19,873 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 02:50:19,873 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:50:19,873 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:19,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:19,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1154597241, now seen corresponding path program 1 times [2022-03-20 02:50:19,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:19,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85427402] [2022-03-20 02:50:19,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:19,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:20,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:20,032 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 02:50:20,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:20,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85427402] [2022-03-20 02:50:20,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85427402] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:20,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:20,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:20,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358695387] [2022-03-20 02:50:20,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:20,033 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:20,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:20,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:20,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:20,034 INFO L87 Difference]: Start difference. First operand 221 states and 350 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 02:50:22,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:22,694 INFO L93 Difference]: Finished difference Result 525 states and 838 transitions. [2022-03-20 02:50:22,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:22,695 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 02:50:22,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:22,697 INFO L225 Difference]: With dead ends: 525 [2022-03-20 02:50:22,697 INFO L226 Difference]: Without dead ends: 330 [2022-03-20 02:50:22,698 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 02:50:22,698 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 159 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:22,698 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 412 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:50:22,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-03-20 02:50:22,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 222. [2022-03-20 02:50:22,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.5898617511520738) internal successors, (345), 217 states have internal predecessors, (345), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:22,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 349 transitions. [2022-03-20 02:50:22,705 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 349 transitions. Word has length 66 [2022-03-20 02:50:22,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:22,708 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 349 transitions. [2022-03-20 02:50:22,712 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 02:50:22,712 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 349 transitions. [2022-03-20 02:50:22,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 02:50:22,713 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:22,713 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 02:50:22,713 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:50:22,713 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:22,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:22,714 INFO L85 PathProgramCache]: Analyzing trace with hash -70798234, now seen corresponding path program 1 times [2022-03-20 02:50:22,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:22,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050370393] [2022-03-20 02:50:22,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:22,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:22,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:22,838 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 02:50:22,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:22,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050370393] [2022-03-20 02:50:22,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050370393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:22,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:22,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:22,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062983981] [2022-03-20 02:50:22,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:22,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:22,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:22,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:22,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:22,843 INFO L87 Difference]: Start difference. First operand 222 states and 349 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 02:50:23,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:50:25,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:25,628 INFO L93 Difference]: Finished difference Result 526 states and 835 transitions. [2022-03-20 02:50:25,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:25,629 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 02:50:25,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:25,630 INFO L225 Difference]: With dead ends: 526 [2022-03-20 02:50:25,631 INFO L226 Difference]: Without dead ends: 330 [2022-03-20 02:50:25,631 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 02:50:25,632 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 163 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:25,632 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 412 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 02:50:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-03-20 02:50:25,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 222. [2022-03-20 02:50:25,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.576036866359447) internal successors, (342), 217 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 02:50:25,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 346 transitions. [2022-03-20 02:50:25,642 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 346 transitions. Word has length 67 [2022-03-20 02:50:25,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:25,642 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 346 transitions. [2022-03-20 02:50:25,642 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 02:50:25,642 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 346 transitions. [2022-03-20 02:50:25,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 02:50:25,643 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:25,643 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 02:50:25,643 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 02:50:25,643 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:25,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1210147738, now seen corresponding path program 1 times [2022-03-20 02:50:25,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:25,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95025748] [2022-03-20 02:50:25,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:25,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:25,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:25,774 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 02:50:25,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:25,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95025748] [2022-03-20 02:50:25,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95025748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:25,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:25,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:25,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916871376] [2022-03-20 02:50:25,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:25,776 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:25,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:25,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:25,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:25,777 INFO L87 Difference]: Start difference. First operand 222 states and 346 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 02:50:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:27,764 INFO L93 Difference]: Finished difference Result 431 states and 677 transitions. [2022-03-20 02:50:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:27,765 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 02:50:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:27,766 INFO L225 Difference]: With dead ends: 431 [2022-03-20 02:50:27,766 INFO L226 Difference]: Without dead ends: 235 [2022-03-20 02:50:27,766 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 02:50:27,767 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 20 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:27,767 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 557 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 02:50:27,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-03-20 02:50:27,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 222. [2022-03-20 02:50:27,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.5714285714285714) internal successors, (341), 217 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 02:50:27,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 345 transitions. [2022-03-20 02:50:27,773 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 345 transitions. Word has length 68 [2022-03-20 02:50:27,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:27,773 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 345 transitions. [2022-03-20 02:50:27,774 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 02:50:27,774 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 345 transitions. [2022-03-20 02:50:27,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 02:50:27,774 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:27,775 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 02:50:27,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 02:50:27,776 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:27,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:27,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2085926507, now seen corresponding path program 1 times [2022-03-20 02:50:27,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:27,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386087790] [2022-03-20 02:50:27,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:27,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:27,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:27,928 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 02:50:27,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:27,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386087790] [2022-03-20 02:50:27,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386087790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:27,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:27,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:27,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795809185] [2022-03-20 02:50:27,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:27,929 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:27,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:27,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:27,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:27,930 INFO L87 Difference]: Start difference. First operand 222 states and 345 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 02:50:29,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:29,890 INFO L93 Difference]: Finished difference Result 526 states and 829 transitions. [2022-03-20 02:50:29,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:29,891 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 02:50:29,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:29,893 INFO L225 Difference]: With dead ends: 526 [2022-03-20 02:50:29,893 INFO L226 Difference]: Without dead ends: 330 [2022-03-20 02:50:29,893 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 02:50:29,894 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 160 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:29,894 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 412 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 02:50:29,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-03-20 02:50:29,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 222. [2022-03-20 02:50:29,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.5576036866359446) internal successors, (338), 217 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 02:50:29,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 342 transitions. [2022-03-20 02:50:29,901 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 342 transitions. Word has length 69 [2022-03-20 02:50:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:29,901 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 342 transitions. [2022-03-20 02:50:29,901 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 02:50:29,902 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 342 transitions. [2022-03-20 02:50:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 02:50:29,902 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:29,902 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 02:50:29,902 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 02:50:29,903 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:29,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:29,903 INFO L85 PathProgramCache]: Analyzing trace with hash 785337428, now seen corresponding path program 1 times [2022-03-20 02:50:29,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:29,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633350218] [2022-03-20 02:50:29,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:29,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:30,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:30,018 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 02:50:30,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:30,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633350218] [2022-03-20 02:50:30,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633350218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:30,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:30,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:30,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955904808] [2022-03-20 02:50:30,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:30,019 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:30,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:30,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:30,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:30,021 INFO L87 Difference]: Start difference. First operand 222 states and 342 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:32,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:50:33,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:33,229 INFO L93 Difference]: Finished difference Result 460 states and 714 transitions. [2022-03-20 02:50:33,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:33,230 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 02:50:33,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:33,231 INFO L225 Difference]: With dead ends: 460 [2022-03-20 02:50:33,231 INFO L226 Difference]: Without dead ends: 264 [2022-03-20 02:50:33,232 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 02:50:33,233 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 29 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:33,233 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 571 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:50:33,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-20 02:50:33,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 244. [2022-03-20 02:50:33,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.5523012552301256) internal successors, (371), 239 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:33,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 375 transitions. [2022-03-20 02:50:33,239 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 375 transitions. Word has length 69 [2022-03-20 02:50:33,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:33,240 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 375 transitions. [2022-03-20 02:50:33,240 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 02:50:33,240 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 375 transitions. [2022-03-20 02:50:33,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 02:50:33,241 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:33,241 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 02:50:33,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 02:50:33,241 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:33,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:33,242 INFO L85 PathProgramCache]: Analyzing trace with hash 462749759, now seen corresponding path program 1 times [2022-03-20 02:50:33,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:33,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831655367] [2022-03-20 02:50:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:33,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:33,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:33,358 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 02:50:33,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:33,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831655367] [2022-03-20 02:50:33,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831655367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:33,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:33,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:33,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441251461] [2022-03-20 02:50:33,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:33,359 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:33,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:33,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:33,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:33,359 INFO L87 Difference]: Start difference. First operand 244 states and 375 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 02:50:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:35,174 INFO L93 Difference]: Finished difference Result 480 states and 744 transitions. [2022-03-20 02:50:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:35,175 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 02:50:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:35,177 INFO L225 Difference]: With dead ends: 480 [2022-03-20 02:50:35,177 INFO L226 Difference]: Without dead ends: 262 [2022-03-20 02:50:35,177 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 02:50:35,178 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 34 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:35,178 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 575 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:50:35,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-20 02:50:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 244. [2022-03-20 02:50:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.5481171548117154) internal successors, (370), 239 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 374 transitions. [2022-03-20 02:50:35,185 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 374 transitions. Word has length 82 [2022-03-20 02:50:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:35,185 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 374 transitions. [2022-03-20 02:50:35,185 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 02:50:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 374 transitions. [2022-03-20 02:50:35,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 02:50:35,186 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:35,186 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 02:50:35,186 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 02:50:35,186 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:35,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:35,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2036214315, now seen corresponding path program 1 times [2022-03-20 02:50:35,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:35,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725314563] [2022-03-20 02:50:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:35,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:35,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:35,320 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 02:50:35,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:35,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725314563] [2022-03-20 02:50:35,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725314563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:35,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:35,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:35,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691679331] [2022-03-20 02:50:35,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:35,321 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:35,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:35,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:35,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:35,322 INFO L87 Difference]: Start difference. First operand 244 states and 374 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 02:50:37,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:37,664 INFO L93 Difference]: Finished difference Result 491 states and 758 transitions. [2022-03-20 02:50:37,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:37,664 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 02:50:37,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:37,666 INFO L225 Difference]: With dead ends: 491 [2022-03-20 02:50:37,666 INFO L226 Difference]: Without dead ends: 273 [2022-03-20 02:50:37,666 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 02:50:37,667 INFO L913 BasicCegarLoop]: 249 mSDtfsCounter, 19 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:37,667 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 634 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:50:37,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-03-20 02:50:37,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 260. [2022-03-20 02:50:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.5411764705882354) internal successors, (393), 255 states have internal predecessors, (393), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:37,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 397 transitions. [2022-03-20 02:50:37,675 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 397 transitions. Word has length 83 [2022-03-20 02:50:37,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:37,675 INFO L478 AbstractCegarLoop]: Abstraction has 260 states and 397 transitions. [2022-03-20 02:50:37,675 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 02:50:37,676 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 397 transitions. [2022-03-20 02:50:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 02:50:37,690 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:37,690 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 02:50:37,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 02:50:37,691 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:37,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:37,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1777171600, now seen corresponding path program 1 times [2022-03-20 02:50:37,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:37,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123207268] [2022-03-20 02:50:37,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:37,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:37,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:37,831 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 02:50:37,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:37,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123207268] [2022-03-20 02:50:37,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123207268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:37,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:37,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:50:37,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308733005] [2022-03-20 02:50:37,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:37,832 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:50:37,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:37,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:50:37,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:50:37,834 INFO L87 Difference]: Start difference. First operand 260 states and 397 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 02:50:42,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:42,043 INFO L93 Difference]: Finished difference Result 503 states and 776 transitions. [2022-03-20 02:50:42,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:50:42,044 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 02:50:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:42,045 INFO L225 Difference]: With dead ends: 503 [2022-03-20 02:50:42,045 INFO L226 Difference]: Without dead ends: 269 [2022-03-20 02:50:42,046 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 02:50:42,046 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 3 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:42,046 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 721 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 02:50:42,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-03-20 02:50:42,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2022-03-20 02:50:42,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 264 states have (on average 1.5303030303030303) internal successors, (404), 264 states have internal predecessors, (404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:42,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 408 transitions. [2022-03-20 02:50:42,053 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 408 transitions. Word has length 84 [2022-03-20 02:50:42,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:42,053 INFO L478 AbstractCegarLoop]: Abstraction has 269 states and 408 transitions. [2022-03-20 02:50:42,054 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 02:50:42,054 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 408 transitions. [2022-03-20 02:50:42,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-20 02:50:42,055 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:42,055 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 02:50:42,055 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 02:50:42,055 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:42,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:42,055 INFO L85 PathProgramCache]: Analyzing trace with hash 747797751, now seen corresponding path program 1 times [2022-03-20 02:50:42,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:42,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925582821] [2022-03-20 02:50:42,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:42,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:42,179 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 02:50:42,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:42,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925582821] [2022-03-20 02:50:42,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925582821] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:42,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:42,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:42,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602408467] [2022-03-20 02:50:42,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:42,180 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:42,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:42,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:42,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:42,181 INFO L87 Difference]: Start difference. First operand 269 states and 408 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 02:50:44,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:44,385 INFO L93 Difference]: Finished difference Result 529 states and 808 transitions. [2022-03-20 02:50:44,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:44,386 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 02:50:44,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:44,387 INFO L225 Difference]: With dead ends: 529 [2022-03-20 02:50:44,387 INFO L226 Difference]: Without dead ends: 286 [2022-03-20 02:50:44,388 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 02:50:44,388 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 34 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:44,389 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 02:50:44,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-20 02:50:44,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 269. [2022-03-20 02:50:44,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 264 states have (on average 1.5265151515151516) internal successors, (403), 264 states have internal predecessors, (403), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:44,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 407 transitions. [2022-03-20 02:50:44,396 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 407 transitions. Word has length 86 [2022-03-20 02:50:44,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:44,396 INFO L478 AbstractCegarLoop]: Abstraction has 269 states and 407 transitions. [2022-03-20 02:50:44,396 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 02:50:44,396 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 407 transitions. [2022-03-20 02:50:44,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-20 02:50:44,397 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:44,397 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 02:50:44,397 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 02:50:44,398 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:44,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:44,398 INFO L85 PathProgramCache]: Analyzing trace with hash -2140979674, now seen corresponding path program 1 times [2022-03-20 02:50:44,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:44,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525835601] [2022-03-20 02:50:44,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:44,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:44,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:44,557 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 02:50:44,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:44,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525835601] [2022-03-20 02:50:44,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525835601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:44,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:44,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:44,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715281012] [2022-03-20 02:50:44,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:44,560 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:44,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:44,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:44,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:44,561 INFO L87 Difference]: Start difference. First operand 269 states and 407 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 02:50:46,973 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 02:50:47,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:47,477 INFO L93 Difference]: Finished difference Result 629 states and 965 transitions. [2022-03-20 02:50:47,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:47,477 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 02:50:47,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:47,479 INFO L225 Difference]: With dead ends: 629 [2022-03-20 02:50:47,479 INFO L226 Difference]: Without dead ends: 386 [2022-03-20 02:50:47,480 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 02:50:47,480 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 135 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:47,480 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 438 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 02:50:47,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-03-20 02:50:47,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 291. [2022-03-20 02:50:47,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.5594405594405594) internal successors, (446), 286 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:47,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 450 transitions. [2022-03-20 02:50:47,488 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 450 transitions. Word has length 91 [2022-03-20 02:50:47,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:47,488 INFO L478 AbstractCegarLoop]: Abstraction has 291 states and 450 transitions. [2022-03-20 02:50:47,489 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 02:50:47,489 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 450 transitions. [2022-03-20 02:50:47,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-20 02:50:47,490 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:47,490 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 02:50:47,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 02:50:47,490 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:47,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:47,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1426006460, now seen corresponding path program 1 times [2022-03-20 02:50:47,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:47,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551073069] [2022-03-20 02:50:47,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:47,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:47,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:47,641 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 02:50:47,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:47,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551073069] [2022-03-20 02:50:47,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551073069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:47,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:47,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:47,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872586340] [2022-03-20 02:50:47,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:47,642 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:47,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:47,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:47,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:47,643 INFO L87 Difference]: Start difference. First operand 291 states and 450 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 02:50:49,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:49,884 INFO L93 Difference]: Finished difference Result 667 states and 1037 transitions. [2022-03-20 02:50:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:49,885 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 02:50:49,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:49,887 INFO L225 Difference]: With dead ends: 667 [2022-03-20 02:50:49,887 INFO L226 Difference]: Without dead ends: 402 [2022-03-20 02:50:49,888 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 02:50:49,888 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 99 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:49,889 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 573 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 02:50:49,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-03-20 02:50:49,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 325. [2022-03-20 02:50:49,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.565625) internal successors, (501), 320 states have internal predecessors, (501), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:49,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 505 transitions. [2022-03-20 02:50:49,916 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 505 transitions. Word has length 119 [2022-03-20 02:50:49,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:49,916 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 505 transitions. [2022-03-20 02:50:49,917 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 02:50:49,917 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 505 transitions. [2022-03-20 02:50:49,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-20 02:50:49,918 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:49,918 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 02:50:49,918 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 02:50:49,918 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:49,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:49,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1901610182, now seen corresponding path program 1 times [2022-03-20 02:50:49,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:49,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497099936] [2022-03-20 02:50:49,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:49,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:50,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:50,085 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 02:50:50,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:50,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497099936] [2022-03-20 02:50:50,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497099936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:50,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:50,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:50,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345570839] [2022-03-20 02:50:50,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:50,086 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:50,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:50,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:50,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:50,087 INFO L87 Difference]: Start difference. First operand 325 states and 505 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 02:50:51,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:51,862 INFO L93 Difference]: Finished difference Result 682 states and 1062 transitions. [2022-03-20 02:50:51,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:51,862 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 02:50:51,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:51,864 INFO L225 Difference]: With dead ends: 682 [2022-03-20 02:50:51,864 INFO L226 Difference]: Without dead ends: 383 [2022-03-20 02:50:51,865 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 02:50:51,865 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 37 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:51,865 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 671 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:50:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-03-20 02:50:51,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 349. [2022-03-20 02:50:51,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 344 states have (on average 1.563953488372093) internal successors, (538), 344 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:51,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 542 transitions. [2022-03-20 02:50:51,874 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 542 transitions. Word has length 119 [2022-03-20 02:50:51,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:51,874 INFO L478 AbstractCegarLoop]: Abstraction has 349 states and 542 transitions. [2022-03-20 02:50:51,874 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 02:50:51,874 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 542 transitions. [2022-03-20 02:50:51,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-20 02:50:51,876 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:51,876 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 02:50:51,876 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 02:50:51,876 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:51,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:51,876 INFO L85 PathProgramCache]: Analyzing trace with hash 414601446, now seen corresponding path program 1 times [2022-03-20 02:50:51,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:51,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090256307] [2022-03-20 02:50:51,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:51,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:52,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:52,027 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 02:50:52,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:52,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090256307] [2022-03-20 02:50:52,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090256307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:52,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:52,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:52,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082343500] [2022-03-20 02:50:52,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:52,029 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:52,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:52,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:52,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:52,030 INFO L87 Difference]: Start difference. First operand 349 states and 542 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 02:50:54,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:50:56,628 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 02:50:56,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:56,979 INFO L93 Difference]: Finished difference Result 679 states and 1064 transitions. [2022-03-20 02:50:56,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:56,979 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 02:50:56,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:56,981 INFO L225 Difference]: With dead ends: 679 [2022-03-20 02:50:56,981 INFO L226 Difference]: Without dead ends: 356 [2022-03-20 02:50:56,981 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 02:50:56,982 INFO L913 BasicCegarLoop]: 228 mSDtfsCounter, 30 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:56,982 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 591 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 02:50:56,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-03-20 02:50:56,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 349. [2022-03-20 02:50:56,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 344 states have (on average 1.561046511627907) internal successors, (537), 344 states have internal predecessors, (537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:56,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 541 transitions. [2022-03-20 02:50:56,990 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 541 transitions. Word has length 124 [2022-03-20 02:50:56,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:56,990 INFO L478 AbstractCegarLoop]: Abstraction has 349 states and 541 transitions. [2022-03-20 02:50:56,990 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 02:50:56,991 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 541 transitions. [2022-03-20 02:50:56,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-20 02:50:56,992 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:56,992 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 02:50:56,992 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 02:50:56,992 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:56,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:56,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1226484090, now seen corresponding path program 1 times [2022-03-20 02:50:56,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:56,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300506590] [2022-03-20 02:50:56,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:56,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:57,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:57,119 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 02:50:57,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:57,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300506590] [2022-03-20 02:50:57,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300506590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:57,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:57,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:57,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835305821] [2022-03-20 02:50:57,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:57,120 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:57,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:57,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:57,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:57,121 INFO L87 Difference]: Start difference. First operand 349 states and 541 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 02:50:59,686 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 02:51:00,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:00,387 INFO L93 Difference]: Finished difference Result 807 states and 1257 transitions. [2022-03-20 02:51:00,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:00,388 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 02:51:00,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:00,389 INFO L225 Difference]: With dead ends: 807 [2022-03-20 02:51:00,389 INFO L226 Difference]: Without dead ends: 484 [2022-03-20 02:51:00,390 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 02:51:00,391 INFO L913 BasicCegarLoop]: 140 mSDtfsCounter, 137 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:00,391 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 410 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:51:00,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-03-20 02:51:00,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 386. [2022-03-20 02:51:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5721784776902887) internal successors, (599), 381 states have internal predecessors, (599), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:00,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 603 transitions. [2022-03-20 02:51:00,402 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 603 transitions. Word has length 125 [2022-03-20 02:51:00,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:00,402 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 603 transitions. [2022-03-20 02:51:00,402 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 02:51:00,402 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 603 transitions. [2022-03-20 02:51:00,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-20 02:51:00,404 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:00,404 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 02:51:00,404 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 02:51:00,404 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:00,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:00,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1120216922, now seen corresponding path program 1 times [2022-03-20 02:51:00,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:00,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591039567] [2022-03-20 02:51:00,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:00,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:00,537 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 02:51:00,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:00,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591039567] [2022-03-20 02:51:00,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591039567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:00,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:00,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:00,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228180047] [2022-03-20 02:51:00,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:00,538 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:00,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:00,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:00,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:00,539 INFO L87 Difference]: Start difference. First operand 386 states and 603 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 02:51:02,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:03,918 INFO L93 Difference]: Finished difference Result 820 states and 1282 transitions. [2022-03-20 02:51:03,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:03,919 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 02:51:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:03,920 INFO L225 Difference]: With dead ends: 820 [2022-03-20 02:51:03,920 INFO L226 Difference]: Without dead ends: 460 [2022-03-20 02:51:03,921 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 02:51:03,922 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 88 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:03,922 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 537 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:51:03,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-03-20 02:51:03,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 392. [2022-03-20 02:51:03,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.573643410852713) internal successors, (609), 387 states have internal predecessors, (609), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:03,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 613 transitions. [2022-03-20 02:51:03,932 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 613 transitions. Word has length 126 [2022-03-20 02:51:03,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:03,933 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 613 transitions. [2022-03-20 02:51:03,933 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 02:51:03,933 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 613 transitions. [2022-03-20 02:51:03,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 02:51:03,934 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:03,935 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 02:51:03,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 02:51:03,935 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:03,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:03,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1099058357, now seen corresponding path program 1 times [2022-03-20 02:51:03,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:03,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758614806] [2022-03-20 02:51:03,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:03,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:04,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:04,056 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 02:51:04,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:04,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758614806] [2022-03-20 02:51:04,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758614806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:04,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:04,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:04,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096583235] [2022-03-20 02:51:04,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:04,057 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:04,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:04,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:04,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:04,058 INFO L87 Difference]: Start difference. First operand 392 states and 613 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 02:51:06,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:07,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:07,703 INFO L93 Difference]: Finished difference Result 824 states and 1289 transitions. [2022-03-20 02:51:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:07,704 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 02:51:07,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:07,706 INFO L225 Difference]: With dead ends: 824 [2022-03-20 02:51:07,706 INFO L226 Difference]: Without dead ends: 458 [2022-03-20 02:51:07,707 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 02:51:07,707 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 109 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:07,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 539 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 02:51:07,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-03-20 02:51:07,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 392. [2022-03-20 02:51:07,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.5710594315245479) internal successors, (608), 387 states have internal predecessors, (608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 612 transitions. [2022-03-20 02:51:07,716 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 612 transitions. Word has length 132 [2022-03-20 02:51:07,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:07,716 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 612 transitions. [2022-03-20 02:51:07,716 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 02:51:07,717 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 612 transitions. [2022-03-20 02:51:07,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 02:51:07,718 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:07,718 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 02:51:07,718 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 02:51:07,718 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:07,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:07,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1316777993, now seen corresponding path program 1 times [2022-03-20 02:51:07,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:07,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420302416] [2022-03-20 02:51:07,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:07,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:07,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:07,892 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 02:51:07,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:07,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420302416] [2022-03-20 02:51:07,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420302416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:07,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:07,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:07,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501354135] [2022-03-20 02:51:07,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:07,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:07,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:07,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:07,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:07,895 INFO L87 Difference]: Start difference. First operand 392 states and 612 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 02:51:09,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:11,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:11,917 INFO L93 Difference]: Finished difference Result 851 states and 1329 transitions. [2022-03-20 02:51:11,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:11,918 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 02:51:11,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:11,920 INFO L225 Difference]: With dead ends: 851 [2022-03-20 02:51:11,920 INFO L226 Difference]: Without dead ends: 485 [2022-03-20 02:51:11,921 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 02:51:11,921 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 158 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:11,922 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 414 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 02:51:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-03-20 02:51:11,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 392. [2022-03-20 02:51:11,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.5607235142118863) internal successors, (604), 387 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 02:51:11,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 608 transitions. [2022-03-20 02:51:11,932 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 608 transitions. Word has length 132 [2022-03-20 02:51:11,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:11,932 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 608 transitions. [2022-03-20 02:51:11,932 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 02:51:11,932 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 608 transitions. [2022-03-20 02:51:11,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 02:51:11,933 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:11,933 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 02:51:11,933 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 02:51:11,934 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:11,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:11,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1651767948, now seen corresponding path program 1 times [2022-03-20 02:51:11,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:11,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905645817] [2022-03-20 02:51:11,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:11,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:12,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:12,050 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 02:51:12,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:12,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905645817] [2022-03-20 02:51:12,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905645817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:12,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:12,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:12,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363807859] [2022-03-20 02:51:12,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:12,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:12,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:12,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:12,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:12,052 INFO L87 Difference]: Start difference. First operand 392 states and 608 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 02:51:14,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:14,326 INFO L93 Difference]: Finished difference Result 815 states and 1264 transitions. [2022-03-20 02:51:14,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:14,327 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 02:51:14,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:14,329 INFO L225 Difference]: With dead ends: 815 [2022-03-20 02:51:14,329 INFO L226 Difference]: Without dead ends: 449 [2022-03-20 02:51:14,330 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 02:51:14,330 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 69 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:14,331 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 547 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 02:51:14,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-03-20 02:51:14,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 395. [2022-03-20 02:51:14,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 390 states have (on average 1.5564102564102564) internal successors, (607), 390 states have internal predecessors, (607), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:14,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 611 transitions. [2022-03-20 02:51:14,340 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 611 transitions. Word has length 133 [2022-03-20 02:51:14,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:14,340 INFO L478 AbstractCegarLoop]: Abstraction has 395 states and 611 transitions. [2022-03-20 02:51:14,340 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 02:51:14,340 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 611 transitions. [2022-03-20 02:51:14,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-20 02:51:14,341 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:14,342 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 02:51:14,342 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 02:51:14,342 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:14,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:14,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1343060733, now seen corresponding path program 1 times [2022-03-20 02:51:14,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:14,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474622846] [2022-03-20 02:51:14,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:14,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:14,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:14,514 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 02:51:14,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:14,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474622846] [2022-03-20 02:51:14,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474622846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:14,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:14,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:14,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872508985] [2022-03-20 02:51:14,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:14,515 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:14,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:14,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:14,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:14,516 INFO L87 Difference]: Start difference. First operand 395 states and 611 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 02:51:17,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:17,172 INFO L93 Difference]: Finished difference Result 808 states and 1253 transitions. [2022-03-20 02:51:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:17,173 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 02:51:17,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:17,175 INFO L225 Difference]: With dead ends: 808 [2022-03-20 02:51:17,175 INFO L226 Difference]: Without dead ends: 439 [2022-03-20 02:51:17,176 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 02:51:17,176 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 94 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:17,176 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 549 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:51:17,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-03-20 02:51:17,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 395. [2022-03-20 02:51:17,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 390 states have (on average 1.5538461538461539) internal successors, (606), 390 states have internal predecessors, (606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:17,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 610 transitions. [2022-03-20 02:51:17,186 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 610 transitions. Word has length 136 [2022-03-20 02:51:17,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:17,187 INFO L478 AbstractCegarLoop]: Abstraction has 395 states and 610 transitions. [2022-03-20 02:51:17,187 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 02:51:17,187 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 610 transitions. [2022-03-20 02:51:17,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-20 02:51:17,188 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:17,188 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 02:51:17,188 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 02:51:17,188 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:17,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1957212865, now seen corresponding path program 1 times [2022-03-20 02:51:17,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:17,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151252876] [2022-03-20 02:51:17,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:17,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:17,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:17,317 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 02:51:17,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:17,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151252876] [2022-03-20 02:51:17,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151252876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:17,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:17,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:17,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418148600] [2022-03-20 02:51:17,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:17,319 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:17,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:17,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:17,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:17,320 INFO L87 Difference]: Start difference. First operand 395 states and 610 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 02:51:19,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:19,770 INFO L93 Difference]: Finished difference Result 849 states and 1314 transitions. [2022-03-20 02:51:19,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:19,770 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 02:51:19,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:19,772 INFO L225 Difference]: With dead ends: 849 [2022-03-20 02:51:19,772 INFO L226 Difference]: Without dead ends: 480 [2022-03-20 02:51:19,772 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 02:51:19,773 INFO L913 BasicCegarLoop]: 155 mSDtfsCounter, 159 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:19,773 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 440 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:51:19,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-03-20 02:51:19,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 395. [2022-03-20 02:51:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 390 states have (on average 1.541025641025641) internal successors, (601), 390 states have internal predecessors, (601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:19,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 605 transitions. [2022-03-20 02:51:19,782 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 605 transitions. Word has length 136 [2022-03-20 02:51:19,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:19,782 INFO L478 AbstractCegarLoop]: Abstraction has 395 states and 605 transitions. [2022-03-20 02:51:19,782 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 02:51:19,783 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 605 transitions. [2022-03-20 02:51:19,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-20 02:51:19,784 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:19,784 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 02:51:19,784 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 02:51:19,784 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:19,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:19,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1278946276, now seen corresponding path program 1 times [2022-03-20 02:51:19,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:19,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301620696] [2022-03-20 02:51:19,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:19,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:19,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:19,902 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 02:51:19,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:19,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301620696] [2022-03-20 02:51:19,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301620696] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:19,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:19,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:19,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348734410] [2022-03-20 02:51:19,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:19,903 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:19,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:19,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:19,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:19,904 INFO L87 Difference]: Start difference. First operand 395 states and 605 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 02:51:21,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:22,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:22,894 INFO L93 Difference]: Finished difference Result 849 states and 1304 transitions. [2022-03-20 02:51:22,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:22,895 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 02:51:22,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:22,896 INFO L225 Difference]: With dead ends: 849 [2022-03-20 02:51:22,896 INFO L226 Difference]: Without dead ends: 480 [2022-03-20 02:51:22,897 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 02:51:22,898 INFO L913 BasicCegarLoop]: 162 mSDtfsCounter, 148 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:22,898 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 454 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 02:51:22,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-03-20 02:51:22,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 395. [2022-03-20 02:51:22,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 390 states have (on average 1.5307692307692307) internal successors, (597), 390 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 02:51:22,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 601 transitions. [2022-03-20 02:51:22,908 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 601 transitions. Word has length 141 [2022-03-20 02:51:22,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:22,908 INFO L478 AbstractCegarLoop]: Abstraction has 395 states and 601 transitions. [2022-03-20 02:51:22,908 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 02:51:22,908 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 601 transitions. [2022-03-20 02:51:22,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-20 02:51:22,909 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:22,909 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 02:51:22,909 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 02:51:22,910 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:22,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:22,910 INFO L85 PathProgramCache]: Analyzing trace with hash 395437286, now seen corresponding path program 1 times [2022-03-20 02:51:22,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:22,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450647598] [2022-03-20 02:51:22,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:22,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:23,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:23,038 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 02:51:23,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:23,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450647598] [2022-03-20 02:51:23,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450647598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:23,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:23,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:23,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645838455] [2022-03-20 02:51:23,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:23,039 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:23,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:23,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:23,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:23,040 INFO L87 Difference]: Start difference. First operand 395 states and 601 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 02:51:24,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:26,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:26,157 INFO L93 Difference]: Finished difference Result 925 states and 1420 transitions. [2022-03-20 02:51:26,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:26,157 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 02:51:26,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:26,159 INFO L225 Difference]: With dead ends: 925 [2022-03-20 02:51:26,159 INFO L226 Difference]: Without dead ends: 556 [2022-03-20 02:51:26,160 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 02:51:26,161 INFO L913 BasicCegarLoop]: 161 mSDtfsCounter, 139 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:26,161 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 452 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 02:51:26,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-03-20 02:51:26,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 459. [2022-03-20 02:51:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.5330396475770924) internal successors, (696), 454 states have internal predecessors, (696), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:26,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 700 transitions. [2022-03-20 02:51:26,171 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 700 transitions. Word has length 141 [2022-03-20 02:51:26,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:26,171 INFO L478 AbstractCegarLoop]: Abstraction has 459 states and 700 transitions. [2022-03-20 02:51:26,172 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 02:51:26,172 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 700 transitions. [2022-03-20 02:51:26,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 02:51:26,173 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:26,173 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 02:51:26,173 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 02:51:26,173 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:26,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:26,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1616329428, now seen corresponding path program 1 times [2022-03-20 02:51:26,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:26,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541882721] [2022-03-20 02:51:26,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:26,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:26,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:26,290 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 02:51:26,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:26,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541882721] [2022-03-20 02:51:26,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541882721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:26,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:26,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:26,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033973091] [2022-03-20 02:51:26,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:26,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:26,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:26,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:26,293 INFO L87 Difference]: Start difference. First operand 459 states and 700 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 02:51:27,846 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 02:51:29,652 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 02:51:30,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:30,533 INFO L93 Difference]: Finished difference Result 967 states and 1482 transitions. [2022-03-20 02:51:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:30,535 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 02:51:30,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:30,537 INFO L225 Difference]: With dead ends: 967 [2022-03-20 02:51:30,538 INFO L226 Difference]: Without dead ends: 534 [2022-03-20 02:51:30,538 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 02:51:30,539 INFO L913 BasicCegarLoop]: 165 mSDtfsCounter, 155 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:30,539 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 460 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 02:51:30,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-03-20 02:51:30,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 459. [2022-03-20 02:51:30,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.5154185022026432) internal successors, (688), 454 states have internal predecessors, (688), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:30,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 692 transitions. [2022-03-20 02:51:30,556 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 692 transitions. Word has length 146 [2022-03-20 02:51:30,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:30,556 INFO L478 AbstractCegarLoop]: Abstraction has 459 states and 692 transitions. [2022-03-20 02:51:30,556 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 02:51:30,557 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 692 transitions. [2022-03-20 02:51:30,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 02:51:30,558 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:30,558 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 02:51:30,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 02:51:30,558 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:30,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:30,559 INFO L85 PathProgramCache]: Analyzing trace with hash -256190392, now seen corresponding path program 1 times [2022-03-20 02:51:30,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:30,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668269709] [2022-03-20 02:51:30,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:30,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:30,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:30,710 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 02:51:30,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:30,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668269709] [2022-03-20 02:51:30,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668269709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:30,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:30,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:30,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888090871] [2022-03-20 02:51:30,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:30,711 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:30,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:30,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:30,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:30,712 INFO L87 Difference]: Start difference. First operand 459 states and 692 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 02:51:33,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:33,575 INFO L93 Difference]: Finished difference Result 1007 states and 1528 transitions. [2022-03-20 02:51:33,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:33,575 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 02:51:33,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:33,577 INFO L225 Difference]: With dead ends: 1007 [2022-03-20 02:51:33,577 INFO L226 Difference]: Without dead ends: 574 [2022-03-20 02:51:33,578 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 02:51:33,579 INFO L913 BasicCegarLoop]: 165 mSDtfsCounter, 135 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:33,579 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 460 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:51:33,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-03-20 02:51:33,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 489. [2022-03-20 02:51:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5041322314049588) internal successors, (728), 484 states have internal predecessors, (728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:33,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 732 transitions. [2022-03-20 02:51:33,590 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 732 transitions. Word has length 146 [2022-03-20 02:51:33,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:33,590 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 732 transitions. [2022-03-20 02:51:33,590 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 02:51:33,591 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 732 transitions. [2022-03-20 02:51:33,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 02:51:33,592 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:33,592 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 02:51:33,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 02:51:33,592 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:33,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:33,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1392983107, now seen corresponding path program 1 times [2022-03-20 02:51:33,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:33,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712769570] [2022-03-20 02:51:33,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:33,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:33,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:33,715 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 02:51:33,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:33,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712769570] [2022-03-20 02:51:33,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712769570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:33,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:33,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:33,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088194696] [2022-03-20 02:51:33,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:33,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:33,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:33,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:33,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:33,717 INFO L87 Difference]: Start difference. First operand 489 states and 732 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 02:51:36,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:36,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:36,986 INFO L93 Difference]: Finished difference Result 984 states and 1481 transitions. [2022-03-20 02:51:36,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:36,987 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 02:51:36,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:36,988 INFO L225 Difference]: With dead ends: 984 [2022-03-20 02:51:36,988 INFO L226 Difference]: Without dead ends: 521 [2022-03-20 02:51:36,989 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 02:51:36,990 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 66 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:36,990 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 581 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:51:36,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-03-20 02:51:36,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 489. [2022-03-20 02:51:36,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5020661157024793) internal successors, (727), 484 states have internal predecessors, (727), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:37,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 731 transitions. [2022-03-20 02:51:37,000 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 731 transitions. Word has length 147 [2022-03-20 02:51:37,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:37,000 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 731 transitions. [2022-03-20 02:51:37,000 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 02:51:37,000 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 731 transitions. [2022-03-20 02:51:37,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 02:51:37,002 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:37,002 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 02:51:37,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 02:51:37,002 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:37,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:37,002 INFO L85 PathProgramCache]: Analyzing trace with hash -996161928, now seen corresponding path program 1 times [2022-03-20 02:51:37,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:37,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031926730] [2022-03-20 02:51:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:37,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:37,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:37,110 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 02:51:37,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:37,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031926730] [2022-03-20 02:51:37,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031926730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:37,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:37,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:51:37,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003108475] [2022-03-20 02:51:37,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:37,111 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:51:37,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:37,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:51:37,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:51:37,112 INFO L87 Difference]: Start difference. First operand 489 states and 731 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 02:51:38,511 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 02:51:39,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:39,514 INFO L93 Difference]: Finished difference Result 1410 states and 2127 transitions. [2022-03-20 02:51:39,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:51:39,514 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 02:51:39,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:39,516 INFO L225 Difference]: With dead ends: 1410 [2022-03-20 02:51:39,517 INFO L226 Difference]: Without dead ends: 947 [2022-03-20 02:51:39,521 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 02:51:39,522 INFO L913 BasicCegarLoop]: 254 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:39,522 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 448 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:51:39,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-03-20 02:51:39,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 945. [2022-03-20 02:51:39,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 940 states have (on average 1.4893617021276595) internal successors, (1400), 940 states have internal predecessors, (1400), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:39,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1404 transitions. [2022-03-20 02:51:39,540 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1404 transitions. Word has length 148 [2022-03-20 02:51:39,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:39,540 INFO L478 AbstractCegarLoop]: Abstraction has 945 states and 1404 transitions. [2022-03-20 02:51:39,540 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 02:51:39,540 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1404 transitions. [2022-03-20 02:51:39,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 02:51:39,542 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:39,543 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 02:51:39,543 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 02:51:39,543 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:39,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:39,543 INFO L85 PathProgramCache]: Analyzing trace with hash -748015434, now seen corresponding path program 1 times [2022-03-20 02:51:39,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:39,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734424813] [2022-03-20 02:51:39,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:39,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:39,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:39,661 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-20 02:51:39,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:39,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734424813] [2022-03-20 02:51:39,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734424813] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:39,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:39,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:39,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958624703] [2022-03-20 02:51:39,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:39,662 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:39,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:39,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:39,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:39,663 INFO L87 Difference]: Start difference. First operand 945 states and 1404 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 02:51:41,559 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 02:51:41,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:41,973 INFO L93 Difference]: Finished difference Result 1943 states and 2890 transitions. [2022-03-20 02:51:41,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:41,973 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 148 [2022-03-20 02:51:41,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:41,976 INFO L225 Difference]: With dead ends: 1943 [2022-03-20 02:51:41,976 INFO L226 Difference]: Without dead ends: 1024 [2022-03-20 02:51:41,977 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 02:51:41,977 INFO L913 BasicCegarLoop]: 260 mSDtfsCounter, 29 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:41,977 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 655 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:51:41,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-03-20 02:51:41,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 997. [2022-03-20 02:51:41,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4858870967741935) internal successors, (1474), 992 states have internal predecessors, (1474), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1478 transitions. [2022-03-20 02:51:41,997 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1478 transitions. Word has length 148 [2022-03-20 02:51:41,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:41,997 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1478 transitions. [2022-03-20 02:51:41,997 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 02:51:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1478 transitions. [2022-03-20 02:51:41,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-20 02:51:41,999 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:41,999 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, 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 02:51:42,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 02:51:42,000 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:42,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:42,000 INFO L85 PathProgramCache]: Analyzing trace with hash 930598693, now seen corresponding path program 1 times [2022-03-20 02:51:42,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:42,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229183450] [2022-03-20 02:51:42,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:42,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:42,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:51:42,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:42,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229183450] [2022-03-20 02:51:42,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229183450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:42,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:42,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:42,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609629845] [2022-03-20 02:51:42,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:42,127 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:42,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:42,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:42,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:42,128 INFO L87 Difference]: Start difference. First operand 997 states and 1478 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:44,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:44,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:44,816 INFO L93 Difference]: Finished difference Result 2193 states and 3250 transitions. [2022-03-20 02:51:44,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:44,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have 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 02:51:44,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:44,819 INFO L225 Difference]: With dead ends: 2193 [2022-03-20 02:51:44,819 INFO L226 Difference]: Without dead ends: 1222 [2022-03-20 02:51:44,820 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 02:51:44,821 INFO L913 BasicCegarLoop]: 165 mSDtfsCounter, 137 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:44,821 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 460 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:51:44,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2022-03-20 02:51:44,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1053. [2022-03-20 02:51:44,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1048 states have (on average 1.4732824427480915) internal successors, (1544), 1048 states have internal predecessors, (1544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:44,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1548 transitions. [2022-03-20 02:51:44,857 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1548 transitions. Word has length 150 [2022-03-20 02:51:44,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:44,857 INFO L478 AbstractCegarLoop]: Abstraction has 1053 states and 1548 transitions. [2022-03-20 02:51:44,857 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:44,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1548 transitions. [2022-03-20 02:51:44,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-20 02:51:44,859 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:44,860 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, 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 02:51:44,860 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 02:51:44,860 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:44,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:44,861 INFO L85 PathProgramCache]: Analyzing trace with hash -969973184, now seen corresponding path program 1 times [2022-03-20 02:51:44,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:44,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121289784] [2022-03-20 02:51:44,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:44,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:44,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:44,977 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:51:44,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:44,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121289784] [2022-03-20 02:51:44,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121289784] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:44,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:44,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:44,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344167701] [2022-03-20 02:51:44,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:44,978 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:44,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:44,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:44,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:44,979 INFO L87 Difference]: Start difference. First operand 1053 states and 1548 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 02:51:46,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:46,779 INFO L93 Difference]: Finished difference Result 2225 states and 3268 transitions. [2022-03-20 02:51:46,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:46,779 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 151 [2022-03-20 02:51:46,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:46,782 INFO L225 Difference]: With dead ends: 2225 [2022-03-20 02:51:46,782 INFO L226 Difference]: Without dead ends: 1198 [2022-03-20 02:51:46,784 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:46,784 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 136 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:46,784 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 432 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:51:46,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-03-20 02:51:46,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1053. [2022-03-20 02:51:46,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1048 states have (on average 1.4599236641221374) internal successors, (1530), 1048 states have internal predecessors, (1530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:46,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1534 transitions. [2022-03-20 02:51:46,805 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1534 transitions. Word has length 151 [2022-03-20 02:51:46,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:46,806 INFO L478 AbstractCegarLoop]: Abstraction has 1053 states and 1534 transitions. [2022-03-20 02:51:46,806 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 02:51:46,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1534 transitions. [2022-03-20 02:51:46,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-20 02:51:46,808 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:46,808 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:46,808 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 02:51:46,808 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:46,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:46,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1037720829, now seen corresponding path program 1 times [2022-03-20 02:51:46,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:46,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340662200] [2022-03-20 02:51:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:46,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:46,954 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 02:51:46,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:46,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340662200] [2022-03-20 02:51:46,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340662200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:46,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:46,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:46,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622338035] [2022-03-20 02:51:46,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:46,956 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:46,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:46,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:46,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:46,957 INFO L87 Difference]: Start difference. First operand 1053 states and 1534 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:49,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:49,504 INFO L93 Difference]: Finished difference Result 2225 states and 3240 transitions. [2022-03-20 02:51:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:49,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-20 02:51:49,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:49,507 INFO L225 Difference]: With dead ends: 2225 [2022-03-20 02:51:49,507 INFO L226 Difference]: Without dead ends: 1198 [2022-03-20 02:51:49,509 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 02:51:49,509 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 138 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:49,510 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 432 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:51:49,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-03-20 02:51:49,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1053. [2022-03-20 02:51:49,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1048 states have (on average 1.4446564885496183) internal successors, (1514), 1048 states have internal predecessors, (1514), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:49,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1518 transitions. [2022-03-20 02:51:49,531 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1518 transitions. Word has length 154 [2022-03-20 02:51:49,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:49,532 INFO L478 AbstractCegarLoop]: Abstraction has 1053 states and 1518 transitions. [2022-03-20 02:51:49,532 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:49,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1518 transitions. [2022-03-20 02:51:49,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-20 02:51:49,534 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:49,534 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:49,534 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 02:51:49,534 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:49,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:49,535 INFO L85 PathProgramCache]: Analyzing trace with hash 125164862, now seen corresponding path program 1 times [2022-03-20 02:51:49,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:49,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291549913] [2022-03-20 02:51:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:49,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:49,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:49,665 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 02:51:49,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:49,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291549913] [2022-03-20 02:51:49,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291549913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:49,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:49,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:49,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998050233] [2022-03-20 02:51:49,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:49,666 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:49,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:49,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:49,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:49,666 INFO L87 Difference]: Start difference. First operand 1053 states and 1518 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:50,697 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 02:51:53,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:53,004 INFO L93 Difference]: Finished difference Result 2123 states and 3061 transitions. [2022-03-20 02:51:53,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:53,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-20 02:51:53,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:53,007 INFO L225 Difference]: With dead ends: 2123 [2022-03-20 02:51:53,007 INFO L226 Difference]: Without dead ends: 1096 [2022-03-20 02:51:53,008 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 02:51:53,009 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 56 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:53,009 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 605 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 02:51:53,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-03-20 02:51:53,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1053. [2022-03-20 02:51:53,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1048 states have (on average 1.4427480916030535) internal successors, (1512), 1048 states have internal predecessors, (1512), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:53,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1516 transitions. [2022-03-20 02:51:53,030 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1516 transitions. Word has length 155 [2022-03-20 02:51:53,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:53,030 INFO L478 AbstractCegarLoop]: Abstraction has 1053 states and 1516 transitions. [2022-03-20 02:51:53,030 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:53,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1516 transitions. [2022-03-20 02:51:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-20 02:51:53,032 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:53,032 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, 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] [2022-03-20 02:51:53,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 02:51:53,033 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:53,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1706452321, now seen corresponding path program 1 times [2022-03-20 02:51:53,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:53,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146980437] [2022-03-20 02:51:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:53,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:53,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:53,174 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 02:51:53,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:53,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146980437] [2022-03-20 02:51:53,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146980437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:53,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:53,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:53,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511023710] [2022-03-20 02:51:53,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:53,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:53,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:53,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:53,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:53,177 INFO L87 Difference]: Start difference. First operand 1053 states and 1516 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 02:51:55,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:55,069 INFO L93 Difference]: Finished difference Result 2305 states and 3322 transitions. [2022-03-20 02:51:55,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:55,070 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 158 [2022-03-20 02:51:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:55,073 INFO L225 Difference]: With dead ends: 2305 [2022-03-20 02:51:55,073 INFO L226 Difference]: Without dead ends: 1278 [2022-03-20 02:51:55,074 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 02:51:55,075 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 131 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:55,075 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 432 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 02:51:55,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2022-03-20 02:51:55,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1119. [2022-03-20 02:51:55,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1114 states have (on average 1.436265709156194) internal successors, (1600), 1114 states have internal predecessors, (1600), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:55,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1604 transitions. [2022-03-20 02:51:55,097 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1604 transitions. Word has length 158 [2022-03-20 02:51:55,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:55,098 INFO L478 AbstractCegarLoop]: Abstraction has 1119 states and 1604 transitions. [2022-03-20 02:51:55,098 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 02:51:55,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1604 transitions. [2022-03-20 02:51:55,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-20 02:51:55,100 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:55,100 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, 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] [2022-03-20 02:51:55,100 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 02:51:55,100 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:55,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:55,101 INFO L85 PathProgramCache]: Analyzing trace with hash 375913326, now seen corresponding path program 1 times [2022-03-20 02:51:55,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:55,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725152185] [2022-03-20 02:51:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:55,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:55,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:55,239 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-20 02:51:55,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:55,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725152185] [2022-03-20 02:51:55,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725152185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:55,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:55,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:55,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094962735] [2022-03-20 02:51:55,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:55,239 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:55,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:55,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:55,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:55,240 INFO L87 Difference]: Start difference. First operand 1119 states and 1604 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:56,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:58,176 WARN L534 Checker$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 02:51:59,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:59,427 INFO L93 Difference]: Finished difference Result 2437 states and 3494 transitions. [2022-03-20 02:51:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:59,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-20 02:51:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:59,431 INFO L225 Difference]: With dead ends: 2437 [2022-03-20 02:51:59,431 INFO L226 Difference]: Without dead ends: 1344 [2022-03-20 02:51:59,432 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 02:51:59,433 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 129 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:59,433 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 432 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 02:51:59,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-03-20 02:51:59,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1189. [2022-03-20 02:51:59,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 1184 states have (on average 1.429054054054054) internal successors, (1692), 1184 states have internal predecessors, (1692), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:59,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1696 transitions. [2022-03-20 02:51:59,458 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1696 transitions. Word has length 158 [2022-03-20 02:51:59,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:59,458 INFO L478 AbstractCegarLoop]: Abstraction has 1189 states and 1696 transitions. [2022-03-20 02:51:59,459 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:59,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1696 transitions. [2022-03-20 02:51:59,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-20 02:51:59,461 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:59,461 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, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:59,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 02:51:59,461 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:59,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:59,462 INFO L85 PathProgramCache]: Analyzing trace with hash -851531199, now seen corresponding path program 1 times [2022-03-20 02:51:59,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:59,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265295945] [2022-03-20 02:51:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:59,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:59,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 02:51:59,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:59,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265295945] [2022-03-20 02:51:59,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265295945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:59,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:59,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:59,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921971919] [2022-03-20 02:51:59,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:59,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:59,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:59,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:59,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:59,588 INFO L87 Difference]: Start difference. First operand 1189 states and 1696 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:02,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:02,132 INFO L93 Difference]: Finished difference Result 2497 states and 3564 transitions. [2022-03-20 02:52:02,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:02,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-03-20 02:52:02,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:02,136 INFO L225 Difference]: With dead ends: 2497 [2022-03-20 02:52:02,136 INFO L226 Difference]: Without dead ends: 1334 [2022-03-20 02:52:02,137 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 02:52:02,138 INFO L913 BasicCegarLoop]: 152 mSDtfsCounter, 130 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:02,138 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 434 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:52:02,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-03-20 02:52:02,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1189. [2022-03-20 02:52:02,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 1184 states have (on average 1.4206081081081081) internal successors, (1682), 1184 states have internal predecessors, (1682), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1686 transitions. [2022-03-20 02:52:02,157 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1686 transitions. Word has length 159 [2022-03-20 02:52:02,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:02,157 INFO L478 AbstractCegarLoop]: Abstraction has 1189 states and 1686 transitions. [2022-03-20 02:52:02,157 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:02,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1686 transitions. [2022-03-20 02:52:02,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-20 02:52:02,160 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:02,160 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, 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] [2022-03-20 02:52:02,160 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 02:52:02,160 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:02,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:02,160 INFO L85 PathProgramCache]: Analyzing trace with hash -142759698, now seen corresponding path program 1 times [2022-03-20 02:52:02,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:02,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226844540] [2022-03-20 02:52:02,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:02,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:02,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:02,292 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-20 02:52:02,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:02,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226844540] [2022-03-20 02:52:02,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226844540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:02,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:02,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:02,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955205751] [2022-03-20 02:52:02,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:02,293 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:02,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:02,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:02,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:02,294 INFO L87 Difference]: Start difference. First operand 1189 states and 1686 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:03,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:05,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:05,572 INFO L93 Difference]: Finished difference Result 2377 states and 3374 transitions. [2022-03-20 02:52:05,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:05,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-03-20 02:52:05,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:05,575 INFO L225 Difference]: With dead ends: 2377 [2022-03-20 02:52:05,575 INFO L226 Difference]: Without dead ends: 1214 [2022-03-20 02:52:05,576 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 02:52:05,577 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 33 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:05,577 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 611 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:52:05,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2022-03-20 02:52:05,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1189. [2022-03-20 02:52:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 1184 states have (on average 1.4189189189189189) internal successors, (1680), 1184 states have internal predecessors, (1680), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:05,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1684 transitions. [2022-03-20 02:52:05,605 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1684 transitions. Word has length 159 [2022-03-20 02:52:05,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:05,605 INFO L478 AbstractCegarLoop]: Abstraction has 1189 states and 1684 transitions. [2022-03-20 02:52:05,605 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:05,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1684 transitions. [2022-03-20 02:52:05,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-20 02:52:05,607 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:05,608 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, 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] [2022-03-20 02:52:05,608 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 02:52:05,608 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:05,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:05,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1568364054, now seen corresponding path program 1 times [2022-03-20 02:52:05,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:05,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752111172] [2022-03-20 02:52:05,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:05,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:05,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-20 02:52:05,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:05,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752111172] [2022-03-20 02:52:05,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752111172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:05,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:05,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:52:05,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263978148] [2022-03-20 02:52:05,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:05,710 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:52:05,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:05,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:52:05,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:05,710 INFO L87 Difference]: Start difference. First operand 1189 states and 1684 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 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 02:52:07,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:07,456 INFO L93 Difference]: Finished difference Result 2379 states and 3375 transitions. [2022-03-20 02:52:07,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:52:07,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 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 167 [2022-03-20 02:52:07,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:07,460 INFO L225 Difference]: With dead ends: 2379 [2022-03-20 02:52:07,460 INFO L226 Difference]: Without dead ends: 1216 [2022-03-20 02:52:07,461 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 02:52:07,462 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:07,462 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 439 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:52:07,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-03-20 02:52:07,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2022-03-20 02:52:07,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 1211 states have (on average 1.416184971098266) internal successors, (1715), 1211 states have internal predecessors, (1715), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:07,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1719 transitions. [2022-03-20 02:52:07,481 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1719 transitions. Word has length 167 [2022-03-20 02:52:07,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:07,481 INFO L478 AbstractCegarLoop]: Abstraction has 1216 states and 1719 transitions. [2022-03-20 02:52:07,482 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 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 02:52:07,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1719 transitions. [2022-03-20 02:52:07,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-20 02:52:07,483 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:07,483 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, 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] [2022-03-20 02:52:07,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 02:52:07,483 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:07,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:07,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1412383512, now seen corresponding path program 1 times [2022-03-20 02:52:07,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:07,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727180914] [2022-03-20 02:52:07,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:07,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:07,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:07,583 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-03-20 02:52:07,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:07,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727180914] [2022-03-20 02:52:07,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727180914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:07,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:07,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:52:07,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105347424] [2022-03-20 02:52:07,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:07,585 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:52:07,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:07,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:52:07,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:07,585 INFO L87 Difference]: Start difference. First operand 1216 states and 1719 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 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 02:52:09,251 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 02:52:11,378 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 02:52:11,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:11,652 INFO L93 Difference]: Finished difference Result 2408 states and 3411 transitions. [2022-03-20 02:52:11,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:52:11,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 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 167 [2022-03-20 02:52:11,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:11,656 INFO L225 Difference]: With dead ends: 2408 [2022-03-20 02:52:11,656 INFO L226 Difference]: Without dead ends: 1218 [2022-03-20 02:52:11,658 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 02:52:11,658 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:11,659 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 418 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 02:52:11,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2022-03-20 02:52:11,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1218. [2022-03-20 02:52:11,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 1213 states have (on average 1.4154987633965375) internal successors, (1717), 1213 states have internal predecessors, (1717), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:11,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1721 transitions. [2022-03-20 02:52:11,677 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1721 transitions. Word has length 167 [2022-03-20 02:52:11,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:11,678 INFO L478 AbstractCegarLoop]: Abstraction has 1218 states and 1721 transitions. [2022-03-20 02:52:11,678 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 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 02:52:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1721 transitions. [2022-03-20 02:52:11,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-03-20 02:52:11,680 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:11,680 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, 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, 1, 1] [2022-03-20 02:52:11,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 02:52:11,680 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:11,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:11,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1819333247, now seen corresponding path program 1 times [2022-03-20 02:52:11,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:11,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796024550] [2022-03-20 02:52:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:11,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:11,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:52:11,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:11,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796024550] [2022-03-20 02:52:11,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796024550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:11,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:11,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:11,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835697635] [2022-03-20 02:52:11,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:11,804 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:11,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:11,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:11,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:11,804 INFO L87 Difference]: Start difference. First operand 1218 states and 1721 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:14,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:14,986 INFO L93 Difference]: Finished difference Result 2554 states and 3613 transitions. [2022-03-20 02:52:14,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:14,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 170 [2022-03-20 02:52:14,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:14,990 INFO L225 Difference]: With dead ends: 2554 [2022-03-20 02:52:14,990 INFO L226 Difference]: Without dead ends: 1364 [2022-03-20 02:52:14,992 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 02:52:14,992 INFO L913 BasicCegarLoop]: 152 mSDtfsCounter, 124 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:14,993 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 434 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 02:52:14,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2022-03-20 02:52:15,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1218. [2022-03-20 02:52:15,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 1213 states have (on average 1.4122011541632316) internal successors, (1713), 1213 states have internal predecessors, (1713), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:15,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1717 transitions. [2022-03-20 02:52:15,031 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1717 transitions. Word has length 170 [2022-03-20 02:52:15,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:15,031 INFO L478 AbstractCegarLoop]: Abstraction has 1218 states and 1717 transitions. [2022-03-20 02:52:15,032 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:15,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1717 transitions. [2022-03-20 02:52:15,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-20 02:52:15,033 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:15,033 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, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:15,033 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 02:52:15,033 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:15,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:15,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1749142275, now seen corresponding path program 1 times [2022-03-20 02:52:15,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:15,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145236147] [2022-03-20 02:52:15,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:15,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:15,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:15,428 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-20 02:52:15,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:15,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145236147] [2022-03-20 02:52:15,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145236147] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:15,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:15,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 02:52:15,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316939520] [2022-03-20 02:52:15,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:15,429 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 02:52:15,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:15,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 02:52:15,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:52:15,429 INFO L87 Difference]: Start difference. First operand 1218 states and 1717 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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 02:52:16,491 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 02:52:18,580 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 02:52:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:20,676 INFO L93 Difference]: Finished difference Result 2429 states and 3426 transitions. [2022-03-20 02:52:20,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 02:52:20,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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 180 [2022-03-20 02:52:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:20,679 INFO L225 Difference]: With dead ends: 2429 [2022-03-20 02:52:20,679 INFO L226 Difference]: Without dead ends: 1218 [2022-03-20 02:52:20,680 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 02:52:20,681 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 7 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:20,681 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 952 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 02:52:20,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2022-03-20 02:52:20,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1218. [2022-03-20 02:52:20,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 1213 states have (on average 1.4113767518549052) internal successors, (1712), 1213 states have internal predecessors, (1712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:20,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1716 transitions. [2022-03-20 02:52:20,705 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1716 transitions. Word has length 180 [2022-03-20 02:52:20,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:20,705 INFO L478 AbstractCegarLoop]: Abstraction has 1218 states and 1716 transitions. [2022-03-20 02:52:20,705 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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 02:52:20,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1716 transitions. [2022-03-20 02:52:20,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-20 02:52:20,707 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:20,708 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, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:20,708 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 02:52:20,708 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:20,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:20,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1715171387, now seen corresponding path program 1 times [2022-03-20 02:52:20,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:20,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50803052] [2022-03-20 02:52:20,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:20,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:22,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:22,068 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:52:22,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:22,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50803052] [2022-03-20 02:52:22,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50803052] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:52:22,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788981759] [2022-03-20 02:52:22,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:22,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:52:22,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:52:22,071 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 02:52:22,099 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 02:52:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:23,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 257 conjunts are in the unsatisfiable core [2022-03-20 02:52:23,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:53:10,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:10,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:10,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:10,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:10,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:47,844 INFO L190 IndexEqualityManager]: detected not equals via solver