/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh/s3_clnt.blast.01.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 15:30:30,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 15:30:30,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 15:30:30,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 15:30:30,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 15:30:30,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 15:30:30,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 15:30:30,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 15:30:30,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 15:30:30,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 15:30:30,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 15:30:30,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 15:30:30,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 15:30:30,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 15:30:30,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 15:30:30,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 15:30:30,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 15:30:30,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 15:30:30,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 15:30:30,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 15:30:30,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 15:30:30,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 15:30:30,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 15:30:30,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 15:30:30,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 15:30:30,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 15:30:30,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 15:30:30,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 15:30:30,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 15:30:30,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 15:30:30,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 15:30:30,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 15:30:30,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 15:30:30,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 15:30:30,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 15:30:30,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 15:30:30,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 15:30:30,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 15:30:30,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 15:30:30,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 15:30:30,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 15:30:30,830 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 15:30:30,878 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 15:30:30,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 15:30:30,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 15:30:30,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 15:30:30,880 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 15:30:30,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 15:30:30,880 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 15:30:30,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 15:30:30,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 15:30:30,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 15:30:30,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 15:30:30,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 15:30:30,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 15:30:30,882 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 15:30:30,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 15:30:30,882 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 15:30:30,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 15:30:30,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 15:30:30,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 15:30:30,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 15:30:30,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 15:30:30,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 15:30:30,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 15:30:30,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 15:30:30,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 15:30:30,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 15:30:30,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 15:30:30,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 15:30:30,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 15:30:30,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 15:30:31,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 15:30:31,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 15:30:31,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 15:30:31,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 15:30:31,210 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 15:30:31,210 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh/s3_clnt.blast.01.i.cil-2.c [2020-10-13 15:30:31,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87948d6ec/56a4244b6c474e7592be91300e923a6c/FLAGc0cb080af [2020-10-13 15:30:31,826 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 15:30:31,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh/s3_clnt.blast.01.i.cil-2.c [2020-10-13 15:30:31,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87948d6ec/56a4244b6c474e7592be91300e923a6c/FLAGc0cb080af [2020-10-13 15:30:32,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87948d6ec/56a4244b6c474e7592be91300e923a6c [2020-10-13 15:30:32,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 15:30:32,040 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 15:30:32,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 15:30:32,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 15:30:32,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 15:30:32,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:30:32" (1/1) ... [2020-10-13 15:30:32,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df5f720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:30:32, skipping insertion in model container [2020-10-13 15:30:32,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:30:32" (1/1) ... [2020-10-13 15:30:32,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 15:30:32,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 15:30:32,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 15:30:32,704 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 15:30:32,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 15:30:32,878 INFO L208 MainTranslator]: Completed translation [2020-10-13 15:30:32,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:30:32 WrapperNode [2020-10-13 15:30:32,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 15:30:32,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 15:30:32,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 15:30:32,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 15:30:32,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:30:32" (1/1) ... [2020-10-13 15:30:32,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:30:32" (1/1) ... [2020-10-13 15:30:32,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:30:32" (1/1) ... [2020-10-13 15:30:32,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:30:32" (1/1) ... [2020-10-13 15:30:32,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:30:32" (1/1) ... [2020-10-13 15:30:33,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:30:32" (1/1) ... [2020-10-13 15:30:33,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:30:32" (1/1) ... [2020-10-13 15:30:33,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 15:30:33,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 15:30:33,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 15:30:33,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 15:30:33,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:30:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 15:30:33,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 15:30:33,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 15:30:33,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2020-10-13 15:30:33,130 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2020-10-13 15:30:33,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 15:30:33,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-13 15:30:33,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2020-10-13 15:30:33,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 15:30:33,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 15:30:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 15:30:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 15:30:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 15:30:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 15:30:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-13 15:30:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 15:30:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 15:30:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2020-10-13 15:30:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2020-10-13 15:30:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-13 15:30:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2020-10-13 15:30:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 15:30:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 15:30:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 15:30:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 15:30:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 15:30:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 15:30:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 15:30:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 15:30:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 15:30:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 15:30:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 15:30:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 15:30:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 15:30:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 15:30:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 15:30:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 15:30:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 15:30:33,939 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-13 15:30:34,524 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-13 15:30:34,524 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-13 15:30:34,551 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 15:30:34,551 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 15:30:34,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:30:34 BoogieIcfgContainer [2020-10-13 15:30:34,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 15:30:34,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 15:30:34,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 15:30:34,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 15:30:34,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 03:30:32" (1/3) ... [2020-10-13 15:30:34,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442daee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:30:34, skipping insertion in model container [2020-10-13 15:30:34,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:30:32" (2/3) ... [2020-10-13 15:30:34,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442daee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:30:34, skipping insertion in model container [2020-10-13 15:30:34,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:30:34" (3/3) ... [2020-10-13 15:30:34,565 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-2.c [2020-10-13 15:30:34,574 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 15:30:34,581 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 15:30:34,593 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 15:30:34,619 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 15:30:34,619 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 15:30:34,619 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 15:30:34,619 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 15:30:34,620 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 15:30:34,620 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 15:30:34,620 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 15:30:34,620 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 15:30:34,642 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2020-10-13 15:30:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 15:30:34,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:30:34,651 INFO L422 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] [2020-10-13 15:30:34,652 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:30:34,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:30:34,658 INFO L82 PathProgramCache]: Analyzing trace with hash -201939892, now seen corresponding path program 1 times [2020-10-13 15:30:34,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:30:34,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414397846] [2020-10-13 15:30:34,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:30:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:34,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:35,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:35,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:36,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:36,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-13 15:30:36,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:30:36,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1150 [2020-10-13 15:30:36,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:36,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:30:36,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 15:30:36,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 15:30:36,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 15:30:36,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:30:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:36,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:36,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:36,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:30:36,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:30:36,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 15:30:36,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:36,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:30:36,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:30:36,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:30:36,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 15:30:36,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414397846] [2020-10-13 15:30:36,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:30:36,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:30:36,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178242148] [2020-10-13 15:30:36,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:30:36,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:30:36,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:30:36,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:30:36,194 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 5 states. [2020-10-13 15:30:37,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:30:37,065 INFO L93 Difference]: Finished difference Result 271 states and 444 transitions. [2020-10-13 15:30:37,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:30:37,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-13 15:30:37,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:30:37,080 INFO L225 Difference]: With dead ends: 271 [2020-10-13 15:30:37,081 INFO L226 Difference]: Without dead ends: 124 [2020-10-13 15:30:37,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:30:37,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-13 15:30:37,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2020-10-13 15:30:37,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-13 15:30:37,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 180 transitions. [2020-10-13 15:30:37,138 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 180 transitions. Word has length 30 [2020-10-13 15:30:37,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:30:37,139 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 180 transitions. [2020-10-13 15:30:37,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:30:37,139 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 180 transitions. [2020-10-13 15:30:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-13 15:30:37,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:30:37,141 INFO L422 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] [2020-10-13 15:30:37,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 15:30:37,142 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:30:37,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:30:37,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1808875329, now seen corresponding path program 1 times [2020-10-13 15:30:37,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:30:37,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9409501] [2020-10-13 15:30:37,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:30:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:37,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:37,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:37,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:39,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:40,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:40,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-13 15:30:40,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 15:30:40,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2899 [2020-10-13 15:30:40,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:30:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-13 15:30:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 15:30:40,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:40,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:30:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:40,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:40,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:40,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:30:40,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:30:40,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 15:30:40,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:40,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:30:40,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:30:40,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:30:40,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 15:30:40,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9409501] [2020-10-13 15:30:40,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:30:40,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 15:30:40,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166599374] [2020-10-13 15:30:40,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 15:30:40,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:30:40,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 15:30:40,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:30:40,244 INFO L87 Difference]: Start difference. First operand 123 states and 180 transitions. Second operand 6 states. [2020-10-13 15:30:41,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:30:41,184 INFO L93 Difference]: Finished difference Result 263 states and 389 transitions. [2020-10-13 15:30:41,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 15:30:41,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-10-13 15:30:41,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:30:41,187 INFO L225 Difference]: With dead ends: 263 [2020-10-13 15:30:41,187 INFO L226 Difference]: Without dead ends: 156 [2020-10-13 15:30:41,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 15:30:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-13 15:30:41,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 140. [2020-10-13 15:30:41,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-13 15:30:41,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 208 transitions. [2020-10-13 15:30:41,213 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 208 transitions. Word has length 45 [2020-10-13 15:30:41,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:30:41,213 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 208 transitions. [2020-10-13 15:30:41,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 15:30:41,214 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 208 transitions. [2020-10-13 15:30:41,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-13 15:30:41,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:30:41,220 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 15:30:41,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 15:30:41,221 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:30:41,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:30:41,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1841858773, now seen corresponding path program 1 times [2020-10-13 15:30:41,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:30:41,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800856640] [2020-10-13 15:30:41,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:30:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:41,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:41,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:41,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:42,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:42,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 15:30:42,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:30:42,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1053 [2020-10-13 15:30:42,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:42,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:30:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 15:30:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 15:30:42,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:42,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:30:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:42,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:42,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:42,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:30:42,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:30:42,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 15:30:42,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:42,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:30:42,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:30:42,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:30:42,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 15:30:42,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800856640] [2020-10-13 15:30:42,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:30:42,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:30:42,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092004416] [2020-10-13 15:30:42,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:30:42,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:30:42,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:30:42,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:30:42,404 INFO L87 Difference]: Start difference. First operand 140 states and 208 transitions. Second operand 5 states. [2020-10-13 15:30:43,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:30:43,060 INFO L93 Difference]: Finished difference Result 299 states and 449 transitions. [2020-10-13 15:30:43,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:30:43,061 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-10-13 15:30:43,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:30:43,063 INFO L225 Difference]: With dead ends: 299 [2020-10-13 15:30:43,064 INFO L226 Difference]: Without dead ends: 175 [2020-10-13 15:30:43,065 INFO L675 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 [2020-10-13 15:30:43,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-13 15:30:43,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 158. [2020-10-13 15:30:43,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-13 15:30:43,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 238 transitions. [2020-10-13 15:30:43,079 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 238 transitions. Word has length 60 [2020-10-13 15:30:43,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:30:43,080 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 238 transitions. [2020-10-13 15:30:43,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:30:43,080 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 238 transitions. [2020-10-13 15:30:43,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 15:30:43,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:30:43,082 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:30:43,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 15:30:43,083 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:30:43,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:30:43,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1929264221, now seen corresponding path program 1 times [2020-10-13 15:30:43,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:30:43,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804797280] [2020-10-13 15:30:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:30:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:43,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:43,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:44,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:44,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 15:30:44,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 15:30:44,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 895 [2020-10-13 15:30:44,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:44,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:30:44,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:30:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 15:30:44,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-13 15:30:44,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:30:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:44,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:44,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:44,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:30:44,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:30:44,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 15:30:44,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:44,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:30:44,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:30:44,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:30:44,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:44,144 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:30:44,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804797280] [2020-10-13 15:30:44,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:30:44,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:30:44,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143105796] [2020-10-13 15:30:44,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:30:44,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:30:44,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:30:44,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:30:44,147 INFO L87 Difference]: Start difference. First operand 158 states and 238 transitions. Second operand 5 states. [2020-10-13 15:30:45,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:30:45,062 INFO L93 Difference]: Finished difference Result 395 states and 600 transitions. [2020-10-13 15:30:45,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:30:45,063 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-10-13 15:30:45,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:30:45,065 INFO L225 Difference]: With dead ends: 395 [2020-10-13 15:30:45,065 INFO L226 Difference]: Without dead ends: 253 [2020-10-13 15:30:45,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:30:45,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-13 15:30:45,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 183. [2020-10-13 15:30:45,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-13 15:30:45,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 281 transitions. [2020-10-13 15:30:45,080 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 281 transitions. Word has length 78 [2020-10-13 15:30:45,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:30:45,080 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 281 transitions. [2020-10-13 15:30:45,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:30:45,081 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 281 transitions. [2020-10-13 15:30:45,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 15:30:45,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:30:45,083 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:30:45,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 15:30:45,083 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:30:45,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:30:45,084 INFO L82 PathProgramCache]: Analyzing trace with hash -2063277727, now seen corresponding path program 1 times [2020-10-13 15:30:45,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:30:45,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507071436] [2020-10-13 15:30:45,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:30:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:45,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:45,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:45,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:46,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:46,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 15:30:46,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:30:46,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1727 [2020-10-13 15:30:46,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:46,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:30:46,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:30:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 15:30:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:46,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:30:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:46,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:46,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:46,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:30:46,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:30:46,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 15:30:46,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:46,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:30:46,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:30:46,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:30:46,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:30:46,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507071436] [2020-10-13 15:30:46,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:30:46,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:30:46,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267783707] [2020-10-13 15:30:46,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:30:46,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:30:46,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:30:46,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:30:46,939 INFO L87 Difference]: Start difference. First operand 183 states and 281 transitions. Second operand 5 states. [2020-10-13 15:30:47,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:30:47,708 INFO L93 Difference]: Finished difference Result 392 states and 606 transitions. [2020-10-13 15:30:47,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:30:47,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-10-13 15:30:47,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:30:47,711 INFO L225 Difference]: With dead ends: 392 [2020-10-13 15:30:47,711 INFO L226 Difference]: Without dead ends: 225 [2020-10-13 15:30:47,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:30:47,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-10-13 15:30:47,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 203. [2020-10-13 15:30:47,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-13 15:30:47,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 315 transitions. [2020-10-13 15:30:47,723 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 315 transitions. Word has length 78 [2020-10-13 15:30:47,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:30:47,724 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 315 transitions. [2020-10-13 15:30:47,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:30:47,724 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 315 transitions. [2020-10-13 15:30:47,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 15:30:47,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:30:47,726 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:30:47,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 15:30:47,726 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:30:47,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:30:47,727 INFO L82 PathProgramCache]: Analyzing trace with hash 317933426, now seen corresponding path program 1 times [2020-10-13 15:30:47,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:30:47,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993722583] [2020-10-13 15:30:47,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:30:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:47,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:47,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:48,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:48,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 15:30:48,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 15:30:48,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 788 [2020-10-13 15:30:48,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:48,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:30:48,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:30:48,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 15:30:48,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:30:48,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:30:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:48,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:48,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:48,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:30:48,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:30:48,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 15:30:48,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:48,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:30:48,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:30:48,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:30:48,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:30:48,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993722583] [2020-10-13 15:30:48,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:30:48,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:30:48,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661591162] [2020-10-13 15:30:48,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:30:48,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:30:48,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:30:48,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:30:48,651 INFO L87 Difference]: Start difference. First operand 203 states and 315 transitions. Second operand 5 states. [2020-10-13 15:30:49,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:30:49,558 INFO L93 Difference]: Finished difference Result 457 states and 706 transitions. [2020-10-13 15:30:49,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:30:49,559 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 79 [2020-10-13 15:30:49,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:30:49,561 INFO L225 Difference]: With dead ends: 457 [2020-10-13 15:30:49,561 INFO L226 Difference]: Without dead ends: 270 [2020-10-13 15:30:49,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:30:49,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-13 15:30:49,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 204. [2020-10-13 15:30:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-13 15:30:49,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 316 transitions. [2020-10-13 15:30:49,572 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 316 transitions. Word has length 79 [2020-10-13 15:30:49,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:30:49,572 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 316 transitions. [2020-10-13 15:30:49,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:30:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 316 transitions. [2020-10-13 15:30:49,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 15:30:49,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:30:49,574 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:30:49,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 15:30:49,575 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:30:49,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:30:49,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1261744606, now seen corresponding path program 1 times [2020-10-13 15:30:49,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:30:49,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045031555] [2020-10-13 15:30:49,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:30:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:49,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:49,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:50,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:50,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 15:30:50,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 15:30:50,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 836 [2020-10-13 15:30:50,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:50,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:30:50,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:30:50,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 15:30:50,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:30:50,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:30:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:50,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:50,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:50,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:30:50,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:30:50,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 15:30:50,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:30:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:30:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:30:50,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:50,537 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:30:50,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045031555] [2020-10-13 15:30:50,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:30:50,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:30:50,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21364546] [2020-10-13 15:30:50,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:30:50,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:30:50,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:30:50,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:30:50,540 INFO L87 Difference]: Start difference. First operand 204 states and 316 transitions. Second operand 5 states. [2020-10-13 15:30:51,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:30:51,365 INFO L93 Difference]: Finished difference Result 458 states and 706 transitions. [2020-10-13 15:30:51,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:30:51,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-10-13 15:30:51,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:30:51,369 INFO L225 Difference]: With dead ends: 458 [2020-10-13 15:30:51,369 INFO L226 Difference]: Without dead ends: 270 [2020-10-13 15:30:51,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:30:51,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-13 15:30:51,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 205. [2020-10-13 15:30:51,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 15:30:51,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 317 transitions. [2020-10-13 15:30:51,380 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 317 transitions. Word has length 80 [2020-10-13 15:30:51,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:30:51,380 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 317 transitions. [2020-10-13 15:30:51,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:30:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 317 transitions. [2020-10-13 15:30:51,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 15:30:51,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:30:51,382 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:30:51,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 15:30:51,383 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:30:51,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:30:51,383 INFO L82 PathProgramCache]: Analyzing trace with hash 454900045, now seen corresponding path program 1 times [2020-10-13 15:30:51,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:30:51,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198850555] [2020-10-13 15:30:51,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:30:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:51,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:51,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:52,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:52,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 15:30:52,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 15:30:52,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 833 [2020-10-13 15:30:52,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:30:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:30:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 15:30:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:52,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:30:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:52,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:52,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:52,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:30:52,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:30:52,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 15:30:52,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:52,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:30:52,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:30:52,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:30:52,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:30:52,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198850555] [2020-10-13 15:30:52,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:30:52,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:30:52,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346415889] [2020-10-13 15:30:52,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:30:52,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:30:52,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:30:52,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:30:52,346 INFO L87 Difference]: Start difference. First operand 205 states and 317 transitions. Second operand 5 states. [2020-10-13 15:30:53,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:30:53,193 INFO L93 Difference]: Finished difference Result 453 states and 699 transitions. [2020-10-13 15:30:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:30:53,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2020-10-13 15:30:53,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:30:53,197 INFO L225 Difference]: With dead ends: 453 [2020-10-13 15:30:53,197 INFO L226 Difference]: Without dead ends: 264 [2020-10-13 15:30:53,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:30:53,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-13 15:30:53,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 206. [2020-10-13 15:30:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-13 15:30:53,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 318 transitions. [2020-10-13 15:30:53,206 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 318 transitions. Word has length 81 [2020-10-13 15:30:53,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:30:53,206 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 318 transitions. [2020-10-13 15:30:53,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:30:53,207 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 318 transitions. [2020-10-13 15:30:53,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-13 15:30:53,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:30:53,208 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:30:53,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 15:30:53,208 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:30:53,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:30:53,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1146918067, now seen corresponding path program 1 times [2020-10-13 15:30:53,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:30:53,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968956349] [2020-10-13 15:30:53,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:30:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:53,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:53,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:54,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:54,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:57,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:57,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 15:30:57,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 15:30:57,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3777 [2020-10-13 15:30:57,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:57,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:30:57,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:30:57,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 15:30:57,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:57,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:30:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:57,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:57,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:57,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:30:57,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:30:57,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 15:30:57,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:57,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:30:57,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:30:57,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:30:57,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:57,127 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:30:57,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968956349] [2020-10-13 15:30:57,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:30:57,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:30:57,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000393208] [2020-10-13 15:30:57,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:30:57,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:30:57,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:30:57,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:30:57,130 INFO L87 Difference]: Start difference. First operand 206 states and 318 transitions. Second operand 5 states. [2020-10-13 15:30:57,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:30:57,975 INFO L93 Difference]: Finished difference Result 454 states and 699 transitions. [2020-10-13 15:30:57,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:30:57,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-13 15:30:57,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:30:57,978 INFO L225 Difference]: With dead ends: 454 [2020-10-13 15:30:57,978 INFO L226 Difference]: Without dead ends: 264 [2020-10-13 15:30:57,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:30:57,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-13 15:30:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 206. [2020-10-13 15:30:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-13 15:30:57,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 317 transitions. [2020-10-13 15:30:57,988 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 317 transitions. Word has length 96 [2020-10-13 15:30:57,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:30:57,988 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 317 transitions. [2020-10-13 15:30:57,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:30:57,988 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 317 transitions. [2020-10-13 15:30:57,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-13 15:30:57,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:30:57,990 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:30:57,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 15:30:57,990 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:30:57,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:30:57,991 INFO L82 PathProgramCache]: Analyzing trace with hash -898771573, now seen corresponding path program 1 times [2020-10-13 15:30:57,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:30:57,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211964026] [2020-10-13 15:30:57,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:30:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:58,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:58,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:58,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:59,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:59,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 15:30:59,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:30:59,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1323 [2020-10-13 15:30:59,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:59,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:30:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-13 15:30:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 15:30:59,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:59,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:30:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:30:59,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:30:59,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:30:59,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:30:59,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:30:59,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 15:30:59,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:30:59,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:30:59,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:30:59,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:30:59,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:30:59,433 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:30:59,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211964026] [2020-10-13 15:30:59,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:30:59,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:30:59,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763468096] [2020-10-13 15:30:59,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:30:59,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:30:59,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:30:59,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:30:59,436 INFO L87 Difference]: Start difference. First operand 206 states and 317 transitions. Second operand 5 states. [2020-10-13 15:31:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:00,294 INFO L93 Difference]: Finished difference Result 443 states and 686 transitions. [2020-10-13 15:31:00,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:00,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-13 15:31:00,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:00,298 INFO L225 Difference]: With dead ends: 443 [2020-10-13 15:31:00,298 INFO L226 Difference]: Without dead ends: 253 [2020-10-13 15:31:00,299 INFO L675 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 [2020-10-13 15:31:00,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-13 15:31:00,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 228. [2020-10-13 15:31:00,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-13 15:31:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 355 transitions. [2020-10-13 15:31:00,310 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 355 transitions. Word has length 96 [2020-10-13 15:31:00,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:00,311 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 355 transitions. [2020-10-13 15:31:00,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:00,311 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 355 transitions. [2020-10-13 15:31:00,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-13 15:31:00,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:00,312 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:00,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 15:31:00,313 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:00,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:00,313 INFO L82 PathProgramCache]: Analyzing trace with hash 87946936, now seen corresponding path program 1 times [2020-10-13 15:31:00,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:00,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579255883] [2020-10-13 15:31:00,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:00,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:00,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:00,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:01,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:01,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 15:31:01,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:01,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1088 [2020-10-13 15:31:01,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:01,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:01,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:31:01,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 15:31:01,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:01,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:01,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:01,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:01,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:01,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:01,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 15:31:01,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:01,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:01,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:01,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:01,517 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:31:01,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579255883] [2020-10-13 15:31:01,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:01,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:01,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491463280] [2020-10-13 15:31:01,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:01,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:01,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:01,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:01,526 INFO L87 Difference]: Start difference. First operand 228 states and 355 transitions. Second operand 5 states. [2020-10-13 15:31:02,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:02,459 INFO L93 Difference]: Finished difference Result 498 states and 773 transitions. [2020-10-13 15:31:02,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:02,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2020-10-13 15:31:02,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:02,462 INFO L225 Difference]: With dead ends: 498 [2020-10-13 15:31:02,463 INFO L226 Difference]: Without dead ends: 286 [2020-10-13 15:31:02,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:02,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-13 15:31:02,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 228. [2020-10-13 15:31:02,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-13 15:31:02,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 354 transitions. [2020-10-13 15:31:02,472 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 354 transitions. Word has length 99 [2020-10-13 15:31:02,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:02,473 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 354 transitions. [2020-10-13 15:31:02,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:02,473 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 354 transitions. [2020-10-13 15:31:02,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 15:31:02,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:02,474 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:02,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 15:31:02,475 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:02,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:02,475 INFO L82 PathProgramCache]: Analyzing trace with hash -430040663, now seen corresponding path program 1 times [2020-10-13 15:31:02,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:02,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84641220] [2020-10-13 15:31:02,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:02,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:02,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:03,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:03,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:03,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 15:31:03,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:03,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1065 [2020-10-13 15:31:03,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:31:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 15:31:03,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:03,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:03,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:03,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:03,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:03,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 15:31:03,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:03,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:03,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:03,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:03,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:03,660 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:31:03,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84641220] [2020-10-13 15:31:03,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:03,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:03,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467441927] [2020-10-13 15:31:03,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:03,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:03,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:03,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:03,662 INFO L87 Difference]: Start difference. First operand 228 states and 354 transitions. Second operand 5 states. [2020-10-13 15:31:04,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:04,525 INFO L93 Difference]: Finished difference Result 495 states and 767 transitions. [2020-10-13 15:31:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:04,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-10-13 15:31:04,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:04,527 INFO L225 Difference]: With dead ends: 495 [2020-10-13 15:31:04,528 INFO L226 Difference]: Without dead ends: 283 [2020-10-13 15:31:04,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:04,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-10-13 15:31:04,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 228. [2020-10-13 15:31:04,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-13 15:31:04,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 353 transitions. [2020-10-13 15:31:04,537 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 353 transitions. Word has length 100 [2020-10-13 15:31:04,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:04,537 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 353 transitions. [2020-10-13 15:31:04,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 353 transitions. [2020-10-13 15:31:04,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-13 15:31:04,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:04,539 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:04,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 15:31:04,539 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:04,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:04,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1885936060, now seen corresponding path program 1 times [2020-10-13 15:31:04,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:04,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446937836] [2020-10-13 15:31:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:04,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:04,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:05,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:06,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:06,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 15:31:06,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:06,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1694 [2020-10-13 15:31:06,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:31:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 15:31:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 15:31:06,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:06,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:06,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:06,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:06,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:06,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:06,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 15:31:06,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:06,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:06,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:06,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:06,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:06,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446937836] [2020-10-13 15:31:06,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:06,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:06,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746197180] [2020-10-13 15:31:06,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:06,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:06,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:06,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:06,353 INFO L87 Difference]: Start difference. First operand 228 states and 353 transitions. Second operand 5 states. [2020-10-13 15:31:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:07,355 INFO L93 Difference]: Finished difference Result 535 states and 830 transitions. [2020-10-13 15:31:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:07,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-10-13 15:31:07,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:07,358 INFO L225 Difference]: With dead ends: 535 [2020-10-13 15:31:07,358 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 15:31:07,359 INFO L675 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 [2020-10-13 15:31:07,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 15:31:07,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 253. [2020-10-13 15:31:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-13 15:31:07,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 396 transitions. [2020-10-13 15:31:07,369 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 396 transitions. Word has length 103 [2020-10-13 15:31:07,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:07,369 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 396 transitions. [2020-10-13 15:31:07,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 396 transitions. [2020-10-13 15:31:07,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 15:31:07,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:07,371 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:07,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 15:31:07,371 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:07,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:07,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1661106417, now seen corresponding path program 1 times [2020-10-13 15:31:07,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:07,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73269886] [2020-10-13 15:31:07,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:07,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:07,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:07,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:08,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:08,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 15:31:08,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:08,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1542 [2020-10-13 15:31:08,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:31:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 15:31:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 15:31:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:09,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:09,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:09,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:09,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:09,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:09,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 15:31:09,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:09,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:09,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:09,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:09,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:31:09,036 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:09,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73269886] [2020-10-13 15:31:09,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:09,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:09,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193111878] [2020-10-13 15:31:09,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:09,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:09,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:09,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:09,038 INFO L87 Difference]: Start difference. First operand 253 states and 396 transitions. Second operand 5 states. [2020-10-13 15:31:09,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:09,882 INFO L93 Difference]: Finished difference Result 557 states and 868 transitions. [2020-10-13 15:31:09,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:09,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-13 15:31:09,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:09,885 INFO L225 Difference]: With dead ends: 557 [2020-10-13 15:31:09,885 INFO L226 Difference]: Without dead ends: 320 [2020-10-13 15:31:09,887 INFO L675 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 [2020-10-13 15:31:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-13 15:31:09,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 254. [2020-10-13 15:31:09,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-13 15:31:09,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 397 transitions. [2020-10-13 15:31:09,896 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 397 transitions. Word has length 104 [2020-10-13 15:31:09,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:09,896 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 397 transitions. [2020-10-13 15:31:09,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:09,896 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 397 transitions. [2020-10-13 15:31:09,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-13 15:31:09,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:09,898 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 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] [2020-10-13 15:31:09,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 15:31:09,898 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:09,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:09,899 INFO L82 PathProgramCache]: Analyzing trace with hash -49565633, now seen corresponding path program 1 times [2020-10-13 15:31:09,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:09,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728874530] [2020-10-13 15:31:09,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:09,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:10,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:11,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:11,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 15:31:11,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:11,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1581 [2020-10-13 15:31:11,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:31:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 15:31:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 15:31:11,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:11,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:11,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:11,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:11,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:11,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:11,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:31:11,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:11,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:11,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:11,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:11,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:11,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728874530] [2020-10-13 15:31:11,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:11,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:11,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199073520] [2020-10-13 15:31:11,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:11,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:11,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:11,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:11,593 INFO L87 Difference]: Start difference. First operand 254 states and 397 transitions. Second operand 5 states. [2020-10-13 15:31:12,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:12,464 INFO L93 Difference]: Finished difference Result 558 states and 868 transitions. [2020-10-13 15:31:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:12,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-10-13 15:31:12,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:12,467 INFO L225 Difference]: With dead ends: 558 [2020-10-13 15:31:12,468 INFO L226 Difference]: Without dead ends: 320 [2020-10-13 15:31:12,469 INFO L675 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 [2020-10-13 15:31:12,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-13 15:31:12,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 255. [2020-10-13 15:31:12,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-13 15:31:12,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 398 transitions. [2020-10-13 15:31:12,477 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 398 transitions. Word has length 105 [2020-10-13 15:31:12,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:12,477 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 398 transitions. [2020-10-13 15:31:12,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:12,477 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 398 transitions. [2020-10-13 15:31:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-13 15:31:12,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:12,479 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:12,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 15:31:12,479 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:12,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:12,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1541011700, now seen corresponding path program 1 times [2020-10-13 15:31:12,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:12,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494076070] [2020-10-13 15:31:12,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:12,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:12,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:13,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:13,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:13,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 15:31:13,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:13,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1410 [2020-10-13 15:31:13,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:31:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 15:31:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 15:31:13,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:13,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:13,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:13,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:13,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:13,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:13,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 15:31:13,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:13,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:13,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:13,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:13,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:13,990 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:13,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494076070] [2020-10-13 15:31:13,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:13,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:13,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283564304] [2020-10-13 15:31:13,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:13,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:13,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:13,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:13,993 INFO L87 Difference]: Start difference. First operand 255 states and 398 transitions. Second operand 5 states. [2020-10-13 15:31:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:14,879 INFO L93 Difference]: Finished difference Result 553 states and 861 transitions. [2020-10-13 15:31:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:14,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-10-13 15:31:14,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:14,882 INFO L225 Difference]: With dead ends: 553 [2020-10-13 15:31:14,882 INFO L226 Difference]: Without dead ends: 314 [2020-10-13 15:31:14,883 INFO L675 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 [2020-10-13 15:31:14,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-10-13 15:31:14,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 252. [2020-10-13 15:31:14,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-13 15:31:14,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 395 transitions. [2020-10-13 15:31:14,893 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 395 transitions. Word has length 106 [2020-10-13 15:31:14,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:14,894 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 395 transitions. [2020-10-13 15:31:14,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:14,894 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 395 transitions. [2020-10-13 15:31:14,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 15:31:14,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:14,895 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:14,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 15:31:14,896 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:14,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:14,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1233272466, now seen corresponding path program 1 times [2020-10-13 15:31:14,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:14,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825502195] [2020-10-13 15:31:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:14,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:14,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:15,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:16,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:16,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 15:31:16,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:16,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1747 [2020-10-13 15:31:16,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:16,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:16,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 15:31:16,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 15:31:16,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:16,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:16,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:16,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:16,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:16,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:16,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:31:16,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:16,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:16,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:16,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:16,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:16,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825502195] [2020-10-13 15:31:16,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:16,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:16,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405939732] [2020-10-13 15:31:16,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:16,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:16,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:16,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:16,756 INFO L87 Difference]: Start difference. First operand 252 states and 395 transitions. Second operand 5 states. [2020-10-13 15:31:17,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:17,691 INFO L93 Difference]: Finished difference Result 583 states and 914 transitions. [2020-10-13 15:31:17,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:17,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-13 15:31:17,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:17,695 INFO L225 Difference]: With dead ends: 583 [2020-10-13 15:31:17,695 INFO L226 Difference]: Without dead ends: 347 [2020-10-13 15:31:17,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-10-13 15:31:17,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 277. [2020-10-13 15:31:17,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-13 15:31:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 438 transitions. [2020-10-13 15:31:17,705 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 438 transitions. Word has length 109 [2020-10-13 15:31:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:17,705 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 438 transitions. [2020-10-13 15:31:17,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:17,705 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 438 transitions. [2020-10-13 15:31:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 15:31:17,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:17,706 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:17,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 15:31:17,707 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:17,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1099258960, now seen corresponding path program 1 times [2020-10-13 15:31:17,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:17,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035135493] [2020-10-13 15:31:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:17,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:17,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:18,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:19,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:19,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 15:31:19,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:19,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1773 [2020-10-13 15:31:19,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:19,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:19,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 15:31:19,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 15:31:19,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:19,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:19,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:19,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:19,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:19,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:19,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 15:31:19,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:19,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:19,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:19,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:19,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:19,621 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:19,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035135493] [2020-10-13 15:31:19,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:19,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:19,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929916678] [2020-10-13 15:31:19,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:19,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:19,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:19,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:19,627 INFO L87 Difference]: Start difference. First operand 277 states and 438 transitions. Second operand 5 states. [2020-10-13 15:31:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:20,698 INFO L93 Difference]: Finished difference Result 633 states and 1000 transitions. [2020-10-13 15:31:20,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:20,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-13 15:31:20,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:20,701 INFO L225 Difference]: With dead ends: 633 [2020-10-13 15:31:20,701 INFO L226 Difference]: Without dead ends: 372 [2020-10-13 15:31:20,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:20,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-13 15:31:20,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 277. [2020-10-13 15:31:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-13 15:31:20,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 438 transitions. [2020-10-13 15:31:20,711 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 438 transitions. Word has length 109 [2020-10-13 15:31:20,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:20,711 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 438 transitions. [2020-10-13 15:31:20,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:20,712 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 438 transitions. [2020-10-13 15:31:20,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-13 15:31:20,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:20,713 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:20,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 15:31:20,713 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:20,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:20,714 INFO L82 PathProgramCache]: Analyzing trace with hash -427677085, now seen corresponding path program 1 times [2020-10-13 15:31:20,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:20,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484031568] [2020-10-13 15:31:20,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:20,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:20,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:21,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:22,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:22,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 15:31:22,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1642 [2020-10-13 15:31:22,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 15:31:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 15:31:22,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:22,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:22,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:22,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:22,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:22,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:22,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:31:22,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:22,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:22,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484031568] [2020-10-13 15:31:22,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:22,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:22,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742278460] [2020-10-13 15:31:22,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:22,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:22,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:22,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:22,477 INFO L87 Difference]: Start difference. First operand 277 states and 438 transitions. Second operand 5 states. [2020-10-13 15:31:23,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:23,479 INFO L93 Difference]: Finished difference Result 630 states and 995 transitions. [2020-10-13 15:31:23,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:23,480 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-13 15:31:23,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:23,482 INFO L225 Difference]: With dead ends: 630 [2020-10-13 15:31:23,482 INFO L226 Difference]: Without dead ends: 369 [2020-10-13 15:31:23,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:23,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-13 15:31:23,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 303. [2020-10-13 15:31:23,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-10-13 15:31:23,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 482 transitions. [2020-10-13 15:31:23,494 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 482 transitions. Word has length 110 [2020-10-13 15:31:23,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:23,494 INFO L479 AbstractCegarLoop]: Abstraction has 303 states and 482 transitions. [2020-10-13 15:31:23,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 482 transitions. [2020-10-13 15:31:23,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-13 15:31:23,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:23,496 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:23,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 15:31:23,496 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:23,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:23,496 INFO L82 PathProgramCache]: Analyzing trace with hash -287128475, now seen corresponding path program 1 times [2020-10-13 15:31:23,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:23,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120949370] [2020-10-13 15:31:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:23,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:23,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:24,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:25,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:25,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 15:31:25,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1972 [2020-10-13 15:31:25,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 15:31:25,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 15:31:25,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:25,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:25,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:25,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:25,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:25,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:25,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:31:25,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:25,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:25,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:25,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:25,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:25,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120949370] [2020-10-13 15:31:25,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:25,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:25,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792285882] [2020-10-13 15:31:25,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:25,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:25,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:25,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:25,608 INFO L87 Difference]: Start difference. First operand 303 states and 482 transitions. Second operand 5 states. [2020-10-13 15:31:26,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:26,539 INFO L93 Difference]: Finished difference Result 657 states and 1040 transitions. [2020-10-13 15:31:26,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:26,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-13 15:31:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:26,542 INFO L225 Difference]: With dead ends: 657 [2020-10-13 15:31:26,542 INFO L226 Difference]: Without dead ends: 370 [2020-10-13 15:31:26,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:26,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-13 15:31:26,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 278. [2020-10-13 15:31:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-13 15:31:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 439 transitions. [2020-10-13 15:31:26,552 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 439 transitions. Word has length 110 [2020-10-13 15:31:26,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:26,552 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 439 transitions. [2020-10-13 15:31:26,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:26,552 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 439 transitions. [2020-10-13 15:31:26,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-13 15:31:26,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:26,554 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 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, 1, 1] [2020-10-13 15:31:26,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 15:31:26,554 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:26,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:26,555 INFO L82 PathProgramCache]: Analyzing trace with hash -377344755, now seen corresponding path program 1 times [2020-10-13 15:31:26,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:26,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70701064] [2020-10-13 15:31:26,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:26,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:26,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:27,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:28,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:28,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 15:31:28,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:28,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1643 [2020-10-13 15:31:28,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:28,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:28,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 15:31:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 15:31:28,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:28,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:28,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:28,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:28,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:28,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:28,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:31:28,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:28,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:28,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:28,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:28,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:28,300 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:28,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70701064] [2020-10-13 15:31:28,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:28,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:28,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443368924] [2020-10-13 15:31:28,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:28,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:28,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:28,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:28,304 INFO L87 Difference]: Start difference. First operand 278 states and 439 transitions. Second operand 5 states. [2020-10-13 15:31:29,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:29,231 INFO L93 Difference]: Finished difference Result 632 states and 996 transitions. [2020-10-13 15:31:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:29,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-13 15:31:29,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:29,235 INFO L225 Difference]: With dead ends: 632 [2020-10-13 15:31:29,235 INFO L226 Difference]: Without dead ends: 370 [2020-10-13 15:31:29,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:29,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-13 15:31:29,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 305. [2020-10-13 15:31:29,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-10-13 15:31:29,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 484 transitions. [2020-10-13 15:31:29,244 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 484 transitions. Word has length 111 [2020-10-13 15:31:29,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:29,245 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 484 transitions. [2020-10-13 15:31:29,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:29,245 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 484 transitions. [2020-10-13 15:31:29,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-13 15:31:29,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:29,246 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 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, 1, 1] [2020-10-13 15:31:29,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 15:31:29,247 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:29,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:29,247 INFO L82 PathProgramCache]: Analyzing trace with hash -315305141, now seen corresponding path program 1 times [2020-10-13 15:31:29,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:29,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1228705764] [2020-10-13 15:31:29,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:29,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:29,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:29,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:31,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:31,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 15:31:31,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:31,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1894 [2020-10-13 15:31:31,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 15:31:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 15:31:31,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:31,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:31,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:31,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:31,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:31,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:31,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 15:31:31,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:31,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:31,278 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:31,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1228705764] [2020-10-13 15:31:31,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:31,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:31,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318768492] [2020-10-13 15:31:31,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:31,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:31,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:31,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:31,281 INFO L87 Difference]: Start difference. First operand 305 states and 484 transitions. Second operand 5 states. [2020-10-13 15:31:32,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:32,211 INFO L93 Difference]: Finished difference Result 660 states and 1042 transitions. [2020-10-13 15:31:32,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:32,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-13 15:31:32,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:32,218 INFO L225 Difference]: With dead ends: 660 [2020-10-13 15:31:32,218 INFO L226 Difference]: Without dead ends: 371 [2020-10-13 15:31:32,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:32,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-10-13 15:31:32,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 279. [2020-10-13 15:31:32,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-10-13 15:31:32,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 440 transitions. [2020-10-13 15:31:32,226 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 440 transitions. Word has length 111 [2020-10-13 15:31:32,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:32,227 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 440 transitions. [2020-10-13 15:31:32,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:32,227 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 440 transitions. [2020-10-13 15:31:32,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-13 15:31:32,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:32,228 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:32,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 15:31:32,229 INFO L427 AbstractCegarLoop]: === Iteration 23 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:32,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:32,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1182737406, now seen corresponding path program 1 times [2020-10-13 15:31:32,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:32,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622412031] [2020-10-13 15:31:32,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:32,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:32,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:32,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:33,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:33,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 15:31:33,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:33,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1671 [2020-10-13 15:31:33,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:33,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:33,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 15:31:33,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 15:31:33,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:33,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:33,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:33,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:33,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:33,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:33,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:31:33,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:33,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:33,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:33,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:33,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:34,005 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:34,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622412031] [2020-10-13 15:31:34,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:34,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:34,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68284974] [2020-10-13 15:31:34,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:34,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:34,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:34,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:34,008 INFO L87 Difference]: Start difference. First operand 279 states and 440 transitions. Second operand 5 states. [2020-10-13 15:31:34,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:34,880 INFO L93 Difference]: Finished difference Result 628 states and 990 transitions. [2020-10-13 15:31:34,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:34,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-10-13 15:31:34,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:34,883 INFO L225 Difference]: With dead ends: 628 [2020-10-13 15:31:34,883 INFO L226 Difference]: Without dead ends: 365 [2020-10-13 15:31:34,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:34,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-10-13 15:31:34,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 280. [2020-10-13 15:31:34,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-13 15:31:34,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 441 transitions. [2020-10-13 15:31:34,892 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 441 transitions. Word has length 112 [2020-10-13 15:31:34,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:34,892 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 441 transitions. [2020-10-13 15:31:34,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:34,893 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 441 transitions. [2020-10-13 15:31:34,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-13 15:31:34,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:34,894 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:34,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 15:31:34,894 INFO L427 AbstractCegarLoop]: === Iteration 24 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:34,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:34,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1189001856, now seen corresponding path program 1 times [2020-10-13 15:31:34,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:34,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931125147] [2020-10-13 15:31:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:34,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:34,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:35,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:36,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:36,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 15:31:36,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:36,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1852 [2020-10-13 15:31:36,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 15:31:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 15:31:36,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:36,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:36,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:36,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:36,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:36,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 15:31:36,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:31:36,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931125147] [2020-10-13 15:31:36,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:36,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:36,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473939780] [2020-10-13 15:31:36,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:36,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:36,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:36,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:36,872 INFO L87 Difference]: Start difference. First operand 280 states and 441 transitions. Second operand 5 states. [2020-10-13 15:31:37,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:37,768 INFO L93 Difference]: Finished difference Result 603 states and 947 transitions. [2020-10-13 15:31:37,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:37,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-10-13 15:31:37,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:37,772 INFO L225 Difference]: With dead ends: 603 [2020-10-13 15:31:37,772 INFO L226 Difference]: Without dead ends: 339 [2020-10-13 15:31:37,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:37,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-10-13 15:31:37,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 253. [2020-10-13 15:31:37,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-13 15:31:37,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 396 transitions. [2020-10-13 15:31:37,781 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 396 transitions. Word has length 112 [2020-10-13 15:31:37,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:37,781 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 396 transitions. [2020-10-13 15:31:37,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:37,781 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 396 transitions. [2020-10-13 15:31:37,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 15:31:37,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:37,783 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:37,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 15:31:37,783 INFO L427 AbstractCegarLoop]: === Iteration 25 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:37,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:37,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1093741121, now seen corresponding path program 1 times [2020-10-13 15:31:37,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:37,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572153184] [2020-10-13 15:31:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:37,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:37,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:38,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:42,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:42,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 15:31:42,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:42,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 15:31:42,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:31:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 15:31:42,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:42,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:42,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:42,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:42,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:42,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:42,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:31:42,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:42,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:42,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:42,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:42,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:42,897 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:31:42,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572153184] [2020-10-13 15:31:42,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:42,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:42,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596868457] [2020-10-13 15:31:42,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:42,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:42,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:42,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:42,899 INFO L87 Difference]: Start difference. First operand 253 states and 396 transitions. Second operand 5 states. [2020-10-13 15:31:43,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:43,700 INFO L93 Difference]: Finished difference Result 549 states and 855 transitions. [2020-10-13 15:31:43,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:43,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-10-13 15:31:43,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:43,703 INFO L225 Difference]: With dead ends: 549 [2020-10-13 15:31:43,703 INFO L226 Difference]: Without dead ends: 312 [2020-10-13 15:31:43,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:43,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-13 15:31:43,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 266. [2020-10-13 15:31:43,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-13 15:31:43,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 417 transitions. [2020-10-13 15:31:43,711 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 417 transitions. Word has length 115 [2020-10-13 15:31:43,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:43,711 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 417 transitions. [2020-10-13 15:31:43,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:43,712 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 417 transitions. [2020-10-13 15:31:43,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 15:31:43,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:43,713 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:43,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 15:31:43,713 INFO L427 AbstractCegarLoop]: === Iteration 26 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:43,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:43,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1684762111, now seen corresponding path program 1 times [2020-10-13 15:31:43,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:43,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144041886] [2020-10-13 15:31:43,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:43,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:43,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:44,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:47,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:48,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:49,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:49,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 15:31:49,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 15:31:49,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5260 [2020-10-13 15:31:49,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:31:49,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 15:31:49,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:49,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:49,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:49,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:49,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:49,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:49,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 15:31:49,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:49,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:31:49,112 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:31:49,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144041886] [2020-10-13 15:31:49,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:49,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:49,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990357255] [2020-10-13 15:31:49,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:49,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:49,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:49,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:49,115 INFO L87 Difference]: Start difference. First operand 266 states and 417 transitions. Second operand 5 states. [2020-10-13 15:31:49,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:49,906 INFO L93 Difference]: Finished difference Result 562 states and 875 transitions. [2020-10-13 15:31:49,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:49,906 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-10-13 15:31:49,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:49,908 INFO L225 Difference]: With dead ends: 562 [2020-10-13 15:31:49,908 INFO L226 Difference]: Without dead ends: 312 [2020-10-13 15:31:49,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:49,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-13 15:31:49,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-10-13 15:31:49,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-13 15:31:49,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 420 transitions. [2020-10-13 15:31:49,919 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 420 transitions. Word has length 115 [2020-10-13 15:31:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:49,919 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 420 transitions. [2020-10-13 15:31:49,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 420 transitions. [2020-10-13 15:31:49,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 15:31:49,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:49,921 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:49,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 15:31:49,921 INFO L427 AbstractCegarLoop]: === Iteration 27 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:49,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:49,923 INFO L82 PathProgramCache]: Analyzing trace with hash 17446802, now seen corresponding path program 1 times [2020-10-13 15:31:49,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:49,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543674879] [2020-10-13 15:31:49,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:49,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:50,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:50,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:54,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:54,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 15:31:54,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:31:54,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-13 15:31:54,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:31:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:31:54,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 15:31:54,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:55,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:31:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:55,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:55,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:31:55,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:31:55,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:31:55,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:31:55,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:31:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:31:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:31:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:31:55,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:31:55,063 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:31:55,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543674879] [2020-10-13 15:31:55,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:31:55,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:31:55,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892077782] [2020-10-13 15:31:55,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:31:55,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:31:55,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:31:55,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:31:55,065 INFO L87 Difference]: Start difference. First operand 268 states and 420 transitions. Second operand 5 states. [2020-10-13 15:31:55,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:31:55,806 INFO L93 Difference]: Finished difference Result 562 states and 875 transitions. [2020-10-13 15:31:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:31:55,807 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-10-13 15:31:55,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:31:55,809 INFO L225 Difference]: With dead ends: 562 [2020-10-13 15:31:55,809 INFO L226 Difference]: Without dead ends: 310 [2020-10-13 15:31:55,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:31:55,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-10-13 15:31:55,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 268. [2020-10-13 15:31:55,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-13 15:31:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 419 transitions. [2020-10-13 15:31:55,817 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 419 transitions. Word has length 116 [2020-10-13 15:31:55,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:31:55,818 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 419 transitions. [2020-10-13 15:31:55,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:31:55,818 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 419 transitions. [2020-10-13 15:31:55,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 15:31:55,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:31:55,819 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:31:55,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 15:31:55,820 INFO L427 AbstractCegarLoop]: === Iteration 28 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:31:55,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:31:55,820 INFO L82 PathProgramCache]: Analyzing trace with hash -152112144, now seen corresponding path program 1 times [2020-10-13 15:31:55,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:31:55,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697101818] [2020-10-13 15:31:55,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:31:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:31:55,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:55,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:31:55,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:00,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:00,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:00,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 15:32:00,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 15:32:00,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-13 15:32:00,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:00,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:32:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:32:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 15:32:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:00,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:32:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:00,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:00,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:00,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:32:00,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:32:00,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:32:00,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:32:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:32:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:32:00,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:00,941 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:32:00,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697101818] [2020-10-13 15:32:00,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:32:00,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:32:00,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406573025] [2020-10-13 15:32:00,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:32:00,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:32:00,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:32:00,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:32:00,943 INFO L87 Difference]: Start difference. First operand 268 states and 419 transitions. Second operand 5 states. [2020-10-13 15:32:01,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:32:01,719 INFO L93 Difference]: Finished difference Result 560 states and 871 transitions. [2020-10-13 15:32:01,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:32:01,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-10-13 15:32:01,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:32:01,722 INFO L225 Difference]: With dead ends: 560 [2020-10-13 15:32:01,722 INFO L226 Difference]: Without dead ends: 308 [2020-10-13 15:32:01,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:32:01,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-10-13 15:32:01,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 269. [2020-10-13 15:32:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-13 15:32:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 420 transitions. [2020-10-13 15:32:01,730 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 420 transitions. Word has length 116 [2020-10-13 15:32:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:32:01,730 INFO L479 AbstractCegarLoop]: Abstraction has 269 states and 420 transitions. [2020-10-13 15:32:01,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:32:01,730 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 420 transitions. [2020-10-13 15:32:01,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-13 15:32:01,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:32:01,732 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:32:01,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 15:32:01,732 INFO L427 AbstractCegarLoop]: === Iteration 29 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:32:01,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:32:01,733 INFO L82 PathProgramCache]: Analyzing trace with hash 587084836, now seen corresponding path program 1 times [2020-10-13 15:32:01,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:32:01,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035448490] [2020-10-13 15:32:01,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:32:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:01,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:01,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:02,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:03,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:03,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 15:32:03,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:32:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1875 [2020-10-13 15:32:03,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:32:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-13 15:32:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 15:32:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:03,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:32:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:03,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:03,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:03,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:32:03,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:32:03,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:32:03,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:32:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:32:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:32:03,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:32:03,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035448490] [2020-10-13 15:32:03,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:32:03,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:32:03,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427256253] [2020-10-13 15:32:03,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:32:03,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:32:03,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:32:03,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:32:03,707 INFO L87 Difference]: Start difference. First operand 269 states and 420 transitions. Second operand 5 states. [2020-10-13 15:32:04,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:32:04,584 INFO L93 Difference]: Finished difference Result 616 states and 963 transitions. [2020-10-13 15:32:04,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:32:04,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-10-13 15:32:04,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:32:04,586 INFO L225 Difference]: With dead ends: 616 [2020-10-13 15:32:04,587 INFO L226 Difference]: Without dead ends: 363 [2020-10-13 15:32:04,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:32:04,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-10-13 15:32:04,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 293. [2020-10-13 15:32:04,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-13 15:32:04,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 462 transitions. [2020-10-13 15:32:04,595 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 462 transitions. Word has length 117 [2020-10-13 15:32:04,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:32:04,595 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 462 transitions. [2020-10-13 15:32:04,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:32:04,596 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 462 transitions. [2020-10-13 15:32:04,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-13 15:32:04,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:32:04,597 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:32:04,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 15:32:04,598 INFO L427 AbstractCegarLoop]: === Iteration 30 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:32:04,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:32:04,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1843897808, now seen corresponding path program 1 times [2020-10-13 15:32:04,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:32:04,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [841738578] [2020-10-13 15:32:04,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:32:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:04,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:04,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:04,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:04,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 15:32:04,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 15:32:04,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-10-13 15:32:04,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:32:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-13 15:32:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 15:32:04,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:05,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:32:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:05,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:05,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:05,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:32:05,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:32:05,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:32:05,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:05,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:32:05,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:32:05,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:32:05,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-13 15:32:05,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [841738578] [2020-10-13 15:32:05,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:32:05,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 15:32:05,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167715899] [2020-10-13 15:32:05,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 15:32:05,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:32:05,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 15:32:05,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 15:32:05,065 INFO L87 Difference]: Start difference. First operand 293 states and 462 transitions. Second operand 4 states. [2020-10-13 15:32:05,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:32:05,465 INFO L93 Difference]: Finished difference Result 295 states and 463 transitions. [2020-10-13 15:32:05,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 15:32:05,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2020-10-13 15:32:05,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:32:05,469 INFO L225 Difference]: With dead ends: 295 [2020-10-13 15:32:05,469 INFO L226 Difference]: Without dead ends: 293 [2020-10-13 15:32:05,470 INFO L675 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 [2020-10-13 15:32:05,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-13 15:32:05,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2020-10-13 15:32:05,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-13 15:32:05,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 461 transitions. [2020-10-13 15:32:05,477 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 461 transitions. Word has length 117 [2020-10-13 15:32:05,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:32:05,478 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 461 transitions. [2020-10-13 15:32:05,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 15:32:05,478 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 461 transitions. [2020-10-13 15:32:05,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 15:32:05,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:32:05,480 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:32:05,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 15:32:05,480 INFO L427 AbstractCegarLoop]: === Iteration 31 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:32:05,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:32:05,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1406600735, now seen corresponding path program 1 times [2020-10-13 15:32:05,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:32:05,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338598694] [2020-10-13 15:32:05,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:32:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:05,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:06,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:07,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:07,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 15:32:07,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:32:07,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2023 [2020-10-13 15:32:07,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:32:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-13 15:32:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 15:32:07,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:07,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:32:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:07,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:07,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:07,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:32:07,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:32:07,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:32:07,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:07,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:32:07,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:32:07,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:32:07,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:07,638 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:32:07,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338598694] [2020-10-13 15:32:07,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:32:07,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:32:07,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191737794] [2020-10-13 15:32:07,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:32:07,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:32:07,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:32:07,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:32:07,640 INFO L87 Difference]: Start difference. First operand 293 states and 461 transitions. Second operand 5 states. [2020-10-13 15:32:08,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:32:08,541 INFO L93 Difference]: Finished difference Result 640 states and 1001 transitions. [2020-10-13 15:32:08,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:32:08,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-10-13 15:32:08,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:32:08,544 INFO L225 Difference]: With dead ends: 640 [2020-10-13 15:32:08,544 INFO L226 Difference]: Without dead ends: 363 [2020-10-13 15:32:08,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:32:08,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-10-13 15:32:08,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 295. [2020-10-13 15:32:08,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-10-13 15:32:08,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 464 transitions. [2020-10-13 15:32:08,553 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 464 transitions. Word has length 119 [2020-10-13 15:32:08,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:32:08,553 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 464 transitions. [2020-10-13 15:32:08,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:32:08,553 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 464 transitions. [2020-10-13 15:32:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 15:32:08,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:32:08,555 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:32:08,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 15:32:08,555 INFO L427 AbstractCegarLoop]: === Iteration 32 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:32:08,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:32:08,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1976910645, now seen corresponding path program 1 times [2020-10-13 15:32:08,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:32:08,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30983130] [2020-10-13 15:32:08,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:32:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:08,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:08,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:08,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:09,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:09,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 15:32:09,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:32:09,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 664 [2020-10-13 15:32:09,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:32:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-13 15:32:09,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 15:32:09,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:09,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:32:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:09,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:09,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:09,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:32:09,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:32:09,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:32:09,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:09,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:32:09,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:32:09,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:32:09,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-13 15:32:09,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30983130] [2020-10-13 15:32:09,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:32:09,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:32:09,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352200937] [2020-10-13 15:32:09,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:32:09,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:32:09,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:32:09,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:32:09,314 INFO L87 Difference]: Start difference. First operand 295 states and 464 transitions. Second operand 5 states. [2020-10-13 15:32:09,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:32:09,988 INFO L93 Difference]: Finished difference Result 626 states and 987 transitions. [2020-10-13 15:32:09,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:32:09,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-10-13 15:32:09,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:32:09,992 INFO L225 Difference]: With dead ends: 626 [2020-10-13 15:32:09,992 INFO L226 Difference]: Without dead ends: 347 [2020-10-13 15:32:09,993 INFO L675 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 [2020-10-13 15:32:09,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-10-13 15:32:09,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 319. [2020-10-13 15:32:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 15:32:10,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 506 transitions. [2020-10-13 15:32:10,001 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 506 transitions. Word has length 119 [2020-10-13 15:32:10,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:32:10,001 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 506 transitions. [2020-10-13 15:32:10,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:32:10,002 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 506 transitions. [2020-10-13 15:32:10,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 15:32:10,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:32:10,003 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:32:10,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 15:32:10,003 INFO L427 AbstractCegarLoop]: === Iteration 33 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:32:10,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:32:10,004 INFO L82 PathProgramCache]: Analyzing trace with hash 650472748, now seen corresponding path program 1 times [2020-10-13 15:32:10,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:32:10,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455157899] [2020-10-13 15:32:10,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:32:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:10,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:10,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:10,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:11,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:11,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 15:32:11,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:32:11,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1881 [2020-10-13 15:32:11,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:11,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:32:11,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-13 15:32:11,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 15:32:11,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:11,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:32:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:11,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:11,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:11,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:32:11,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:32:11,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:32:11,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:32:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:32:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:32:11,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:11,990 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 15:32:11,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455157899] [2020-10-13 15:32:11,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:32:11,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:32:11,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309393524] [2020-10-13 15:32:11,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:32:11,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:32:11,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:32:11,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:32:11,992 INFO L87 Difference]: Start difference. First operand 319 states and 506 transitions. Second operand 5 states. [2020-10-13 15:32:12,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:32:12,916 INFO L93 Difference]: Finished difference Result 684 states and 1080 transitions. [2020-10-13 15:32:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:32:12,917 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-10-13 15:32:12,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:32:12,919 INFO L225 Difference]: With dead ends: 684 [2020-10-13 15:32:12,919 INFO L226 Difference]: Without dead ends: 381 [2020-10-13 15:32:12,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:32:12,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-13 15:32:12,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 318. [2020-10-13 15:32:12,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 15:32:12,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 505 transitions. [2020-10-13 15:32:12,928 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 505 transitions. Word has length 120 [2020-10-13 15:32:12,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:32:12,929 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 505 transitions. [2020-10-13 15:32:12,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:32:12,929 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 505 transitions. [2020-10-13 15:32:12,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 15:32:12,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:32:12,930 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:32:12,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-13 15:32:12,931 INFO L427 AbstractCegarLoop]: === Iteration 34 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:32:12,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:32:12,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1327009055, now seen corresponding path program 1 times [2020-10-13 15:32:12,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:32:12,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983404750] [2020-10-13 15:32:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:32:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:12,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:12,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:13,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:15,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:15,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 15:32:15,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:32:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2346 [2020-10-13 15:32:15,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:32:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:32:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 15:32:15,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:15,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:32:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:15,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:15,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:15,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:32:15,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:32:15,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:32:15,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:15,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:32:15,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:32:15,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:32:15,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:15,394 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 15:32:15,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983404750] [2020-10-13 15:32:15,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:32:15,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:32:15,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247129639] [2020-10-13 15:32:15,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:32:15,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:32:15,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:32:15,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:32:15,396 INFO L87 Difference]: Start difference. First operand 318 states and 505 transitions. Second operand 5 states. [2020-10-13 15:32:16,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:32:16,152 INFO L93 Difference]: Finished difference Result 653 states and 1033 transitions. [2020-10-13 15:32:16,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:32:16,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-10-13 15:32:16,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:32:16,156 INFO L225 Difference]: With dead ends: 653 [2020-10-13 15:32:16,156 INFO L226 Difference]: Without dead ends: 351 [2020-10-13 15:32:16,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:32:16,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-13 15:32:16,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 319. [2020-10-13 15:32:16,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 15:32:16,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 506 transitions. [2020-10-13 15:32:16,165 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 506 transitions. Word has length 120 [2020-10-13 15:32:16,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:32:16,166 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 506 transitions. [2020-10-13 15:32:16,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:32:16,166 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 506 transitions. [2020-10-13 15:32:16,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-13 15:32:16,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:32:16,167 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:32:16,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-13 15:32:16,168 INFO L427 AbstractCegarLoop]: === Iteration 35 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:32:16,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:32:16,168 INFO L82 PathProgramCache]: Analyzing trace with hash 120169287, now seen corresponding path program 1 times [2020-10-13 15:32:16,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:32:16,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314058610] [2020-10-13 15:32:16,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:32:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:16,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:16,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:16,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 15:32:16,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:32:16,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-13 15:32:16,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:32:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-13 15:32:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 15:32:16,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:16,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:32:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:32:16,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:32:16,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:32:16,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 15:32:16,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:32:16,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 15:32:16,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:32:16,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:32:16,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:32:16,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:32:16,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:32:16,530 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-13 15:32:16,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314058610] [2020-10-13 15:32:16,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:32:16,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 15:32:16,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166558063] [2020-10-13 15:32:16,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 15:32:16,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:32:16,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 15:32:16,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 15:32:16,533 INFO L87 Difference]: Start difference. First operand 319 states and 506 transitions. Second operand 4 states. [2020-10-13 15:32:16,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:32:16,986 INFO L93 Difference]: Finished difference Result 923 states and 1477 transitions. [2020-10-13 15:32:16,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 15:32:16,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2020-10-13 15:32:16,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:32:16,990 INFO L225 Difference]: With dead ends: 923 [2020-10-13 15:32:16,990 INFO L226 Difference]: Without dead ends: 620 [2020-10-13 15:32:16,991 INFO L675 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 [2020-10-13 15:32:16,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-10-13 15:32:17,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 620. [2020-10-13 15:32:17,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2020-10-13 15:32:17,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 989 transitions. [2020-10-13 15:32:17,004 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 989 transitions. Word has length 141 [2020-10-13 15:32:17,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:32:17,005 INFO L479 AbstractCegarLoop]: Abstraction has 620 states and 989 transitions. [2020-10-13 15:32:17,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 15:32:17,005 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 989 transitions. [2020-10-13 15:32:17,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-13 15:32:17,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:32:17,007 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:32:17,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-13 15:32:17,007 INFO L427 AbstractCegarLoop]: === Iteration 36 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:32:17,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:32:17,008 INFO L82 PathProgramCache]: Analyzing trace with hash 687102961, now seen corresponding path program 1 times [2020-10-13 15:32:17,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:32:17,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242004577] [2020-10-13 15:32:17,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:32:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 15:32:17,076 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 15:32:17,076 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 15:32:17,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-13 15:32:17,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 03:32:17 BoogieIcfgContainer [2020-10-13 15:32:17,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 15:32:17,128 INFO L168 Benchmark]: Toolchain (without parser) took 105087.36 ms. Allocated memory was 145.8 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 99.6 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 161.1 MB. Max. memory is 7.1 GB. [2020-10-13 15:32:17,129 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 15:32:17,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.26 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 99.2 MB in the beginning and 166.4 MB in the end (delta: -67.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-10-13 15:32:17,133 INFO L168 Benchmark]: Boogie Preprocessor took 145.80 ms. Allocated memory is still 204.5 MB. Free memory was 166.4 MB in the beginning and 158.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. [2020-10-13 15:32:17,133 INFO L168 Benchmark]: RCFGBuilder took 1530.70 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 158.5 MB in the beginning and 184.1 MB in the end (delta: -25.6 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2020-10-13 15:32:17,134 INFO L168 Benchmark]: TraceAbstraction took 102567.64 ms. Allocated memory was 236.5 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 184.1 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 154.9 MB. Max. memory is 7.1 GB. [2020-10-13 15:32:17,136 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 838.26 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 99.2 MB in the beginning and 166.4 MB in the end (delta: -67.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.80 ms. Allocated memory is still 204.5 MB. Free memory was 166.4 MB in the beginning and 158.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1530.70 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 158.5 MB in the beginning and 184.1 MB in the end (delta: -25.6 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 102567.64 ms. Allocated memory was 236.5 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 184.1 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 154.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1644]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 1329. Possible FailurePath: [L1042] static int init = 1; [L1043] static SSL_METHOD SSLv3_client_data ; [L1065] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1069] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1070] s->ctx = malloc(sizeof(SSL_CTX)) [L1071] s->session = malloc(sizeof(SSL_SESSION)) [L1072] s->state = 12292 [L1073] s->version = __VERIFIER_nondet_int() [L1074] CALL ssl3_connect(s) [L1080] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1081] unsigned long tmp ; [L1082] unsigned long l ; [L1083] long num1 ; [L1084] void (*cb)() ; [L1085] int ret ; [L1086] int new_state ; [L1087] int state ; [L1088] int skip ; [L1089] int tmp___1 = __VERIFIER_nondet_int() ; [L1090] int tmp___2 = __VERIFIER_nondet_int() ; [L1091] int tmp___3 ; [L1092] int tmp___4 ; [L1093] int tmp___5 ; [L1094] int tmp___6 ; [L1095] int tmp___7 ; [L1096] int tmp___8 ; [L1097] long tmp___9 ; [L1099] int blastFlag ; [L1102] blastFlag = 0 [L1103] s->hit=__VERIFIER_nondet_int () [L1104] s->state = 12292 [L1105] tmp = __VERIFIER_nondet_int() [L1106] cb = (void (*)())((void *)0) [L1107] ret = -1 [L1108] skip = 0 [L1109] EXPR s->info_callback [L1109] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1110] EXPR s->info_callback [L1110] cb = s->info_callback [L1118] EXPR s->in_handshake [L1118] s->in_handshake += 1 [L1119] COND FALSE !(tmp___1 & 12288) [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND TRUE s->state == 12292 [L1235] s->new_session = 1 [L1236] s->state = 4096 [L1237] EXPR s->ctx [L1237] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1237] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1242] s->server = 0 [L1243] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) [L1248] EXPR s->version [L1248] COND FALSE !((s->version & 65280) != 768) [L1254] s->type = 4096 [L1255] EXPR s->init_buf [L1255] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1267] tmp___4 = __VERIFIER_nondet_int() [L1268] COND FALSE !(! tmp___4) [L1274] tmp___5 = __VERIFIER_nondet_int() [L1275] COND FALSE !(! tmp___5) [L1281] s->state = 4368 [L1282] EXPR s->ctx [L1282] EXPR (s->ctx)->stats.sess_connect [L1282] (s->ctx)->stats.sess_connect += 1 [L1283] s->init_num = 0 [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND TRUE s->state == 4368 [L1287] s->shutdown = 0 [L1288] ret = __VERIFIER_nondet_int() [L1289] COND TRUE blastFlag == 0 [L1290] blastFlag = 1 [L1294] COND FALSE !(ret <= 0) [L1299] s->state = 4384 [L1300] s->init_num = 0 [L1301] EXPR s->bbio [L1301] EXPR s->wbio [L1301] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND TRUE s->state == 4384 [L1309] ret = __VERIFIER_nondet_int() [L1310] COND TRUE blastFlag == 1 [L1311] blastFlag = 2 [L1315] COND FALSE !(ret <= 0) [L1320] s->hit [L1320] COND FALSE !(s->hit) [L1323] s->state = 4400 [L1325] s->init_num = 0 [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND FALSE !(s->state == 4384) [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 4385) [L1159] EXPR s->state [L1159] COND TRUE s->state == 4400 [L1329] EXPR s->s3 [L1329] EXPR (s->s3)->tmp.new_cipher [L1329] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1329] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1332] ret = __VERIFIER_nondet_int() [L1333] COND TRUE blastFlag == 2 [L1334] blastFlag = 3 [L1338] COND FALSE !(ret <= 0) [L1344] s->state = 4416 [L1345] s->init_num = 0 [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND FALSE !(s->state == 4384) [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 4385) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 4400) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4401) [L1165] EXPR s->state [L1165] COND TRUE s->state == 4416 [L1349] ret = __VERIFIER_nondet_int() [L1350] COND TRUE blastFlag == 3 [L1351] blastFlag = 4 [L1355] COND FALSE !(ret <= 0) [L1360] s->state = 4432 [L1361] s->init_num = 0 [L1362] tmp___6 = __VERIFIER_nondet_int() [L1363] COND FALSE !(! tmp___6) [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND FALSE !(s->state == 4384) [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 4385) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 4400) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4401) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 4416) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4417) [L1171] EXPR s->state [L1171] COND TRUE s->state == 4432 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND FALSE !(blastFlag == 5) [L1378] COND FALSE !(ret <= 0) [L1383] s->state = 4448 [L1384] s->init_num = 0 [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND FALSE !(s->state == 4384) [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 4385) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 4400) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4401) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 4416) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4417) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4432) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4433) [L1177] EXPR s->state [L1177] COND TRUE s->state == 4448 [L1388] ret = __VERIFIER_nondet_int() [L1389] COND TRUE blastFlag == 4 [L1644] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 168 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 102.4s, OverallIterations: 36, TraceHistogramMax: 7, AutomataDifference: 29.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7145 SDtfs, 2783 SDslu, 10177 SDs, 0 SdLazy, 16255 SolverSat, 351 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 268 GetRequests, 105 SyntacticMatches, 25 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=620occurred in iteration=35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 35 MinimizatonAttempts, 1857 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 70.3s InterpolantComputationTime, 3682 NumberOfCodeBlocks, 3682 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3504 ConstructedInterpolants, 0 QuantifiedInterpolants, 1483476 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 35 PerfectInterpolantSequences, 2927/2927 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...