/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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.02.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 09:59:29,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 09:59:29,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 09:59:29,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 09:59:29,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 09:59:29,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 09:59:29,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 09:59:29,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 09:59:29,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 09:59:29,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 09:59:29,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 09:59:29,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 09:59:29,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 09:59:29,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 09:59:29,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 09:59:29,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 09:59:29,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 09:59:29,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 09:59:29,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 09:59:29,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 09:59:29,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 09:59:29,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 09:59:29,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 09:59:29,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 09:59:29,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 09:59:29,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 09:59:29,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 09:59:29,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 09:59:29,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 09:59:29,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 09:59:29,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 09:59:29,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 09:59:29,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 09:59:29,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 09:59:29,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 09:59:29,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 09:59:29,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 09:59:29,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 09:59:29,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 09:59:29,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 09:59:29,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 09:59:29,709 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 [2020-10-14 09:59:29,751 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 09:59:29,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 09:59:29,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 09:59:29,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 09:59:29,753 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 09:59:29,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 09:59:29,754 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 09:59:29,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 09:59:29,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 09:59:29,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 09:59:29,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 09:59:29,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 09:59:29,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 09:59:29,756 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 09:59:29,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 09:59:29,757 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 09:59:29,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 09:59:29,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 09:59:29,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 09:59:29,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 09:59:29,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 09:59:29,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 09:59:29,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 09:59:29,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 09:59:29,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 09:59:29,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 09:59:29,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 09:59:29,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 09:59:29,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 09:59:29,759 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 09:59:30,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 09:59:30,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 09:59:30,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 09:59:30,066 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 09:59:30,066 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 09:59:30,067 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh/s3_clnt.blast.02.i.cil-1.c [2020-10-14 09:59:30,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1aca32d9/5c033767a75e467cb5253742648932f1/FLAG1998f74b7 [2020-10-14 09:59:30,757 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 09:59:30,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh/s3_clnt.blast.02.i.cil-1.c [2020-10-14 09:59:30,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1aca32d9/5c033767a75e467cb5253742648932f1/FLAG1998f74b7 [2020-10-14 09:59:30,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1aca32d9/5c033767a75e467cb5253742648932f1 [2020-10-14 09:59:31,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 09:59:31,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 09:59:31,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 09:59:31,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 09:59:31,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 09:59:31,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:59:31" (1/1) ... [2020-10-14 09:59:31,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26497d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:31, skipping insertion in model container [2020-10-14 09:59:31,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:59:31" (1/1) ... [2020-10-14 09:59:31,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 09:59:31,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 09:59:31,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 09:59:31,749 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 09:59:31,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 09:59:31,889 INFO L208 MainTranslator]: Completed translation [2020-10-14 09:59:31,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:31 WrapperNode [2020-10-14 09:59:31,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 09:59:31,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 09:59:31,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 09:59:31,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 09:59:31,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:31" (1/1) ... [2020-10-14 09:59:31,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:31" (1/1) ... [2020-10-14 09:59:31,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:31" (1/1) ... [2020-10-14 09:59:31,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:31" (1/1) ... [2020-10-14 09:59:32,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:31" (1/1) ... [2020-10-14 09:59:32,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:31" (1/1) ... [2020-10-14 09:59:32,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:31" (1/1) ... [2020-10-14 09:59:32,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 09:59:32,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 09:59:32,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 09:59:32,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 09:59:32,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:31" (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 [2020-10-14 09:59:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 09:59:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 09:59:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2020-10-14 09:59:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2020-10-14 09:59:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 09:59:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-14 09:59:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2020-10-14 09:59:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 09:59:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-14 09:59:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 09:59:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 09:59:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 09:59:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 09:59:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-14 09:59:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 09:59:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 09:59:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2020-10-14 09:59:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2020-10-14 09:59:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-14 09:59:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2020-10-14 09:59:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-14 09:59:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 09:59:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 09:59:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 09:59:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 09:59:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 09:59:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 09:59:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 09:59:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 09:59:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 09:59:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 09:59:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 09:59:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 09:59:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-14 09:59:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 09:59:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-14 09:59:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 09:59:32,659 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 09:59:33,241 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-14 09:59:33,241 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-14 09:59:33,278 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 09:59:33,278 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 09:59:33,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:59:33 BoogieIcfgContainer [2020-10-14 09:59:33,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 09:59:33,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 09:59:33,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 09:59:33,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 09:59:33,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:59:31" (1/3) ... [2020-10-14 09:59:33,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109ad5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:59:33, skipping insertion in model container [2020-10-14 09:59:33,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:59:31" (2/3) ... [2020-10-14 09:59:33,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109ad5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:59:33, skipping insertion in model container [2020-10-14 09:59:33,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:59:33" (3/3) ... [2020-10-14 09:59:33,296 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.02.i.cil-1.c [2020-10-14 09:59:33,306 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 09:59:33,316 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 09:59:33,330 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 09:59:33,361 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 09:59:33,361 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 09:59:33,361 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 09:59:33,361 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 09:59:33,362 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 09:59:33,362 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 09:59:33,362 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 09:59:33,362 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 09:59:33,393 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-10-14 09:59:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 09:59:33,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:59:33,405 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] [2020-10-14 09:59:33,406 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:59:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:59:33,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1671955434, now seen corresponding path program 1 times [2020-10-14 09:59:33,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:59:33,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1781373043] [2020-10-14 09:59:33,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:59:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:33,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:33,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:34,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:34,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:34,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 09:59:34,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 09:59:34,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1144 [2020-10-14 09:59:34,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:34,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:59:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 09:59:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 09:59:34,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 09:59:34,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:59:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:34,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:34,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:34,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:59:34,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:59:34,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 09:59:34,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:34,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:59:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:59:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:59:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:59:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:59:34,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1781373043] [2020-10-14 09:59:34,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:59:34,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:59:34,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538151199] [2020-10-14 09:59:34,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:59:34,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:59:34,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:59:34,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:59:34,899 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 4 states. [2020-10-14 09:59:35,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:59:35,542 INFO L93 Difference]: Finished difference Result 381 states and 638 transitions. [2020-10-14 09:59:35,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:59:35,544 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-14 09:59:35,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:59:35,559 INFO L225 Difference]: With dead ends: 381 [2020-10-14 09:59:35,559 INFO L226 Difference]: Without dead ends: 221 [2020-10-14 09:59:35,564 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 [2020-10-14 09:59:35,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-10-14 09:59:35,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2020-10-14 09:59:35,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-14 09:59:35,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 327 transitions. [2020-10-14 09:59:35,624 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 327 transitions. Word has length 30 [2020-10-14 09:59:35,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:59:35,625 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 327 transitions. [2020-10-14 09:59:35,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:59:35,625 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 327 transitions. [2020-10-14 09:59:35,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 09:59:35,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:59:35,628 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:59:35,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 09:59:35,629 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:59:35,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:59:35,629 INFO L82 PathProgramCache]: Analyzing trace with hash -714689214, now seen corresponding path program 1 times [2020-10-14 09:59:35,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:59:35,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609553219] [2020-10-14 09:59:35,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:59:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:35,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:35,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:35,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:36,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:36,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:39,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:39,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 09:59:39,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 09:59:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3555 [2020-10-14 09:59:39,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:39,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:39,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:59:39,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 09:59:39,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 09:59:39,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 09:59:39,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:59:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:39,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:39,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:39,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:59:39,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:59:39,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 09:59:39,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:39,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:39,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:59:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:59:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:59:39,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 09:59:39,325 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:59:39,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609553219] [2020-10-14 09:59:39,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:59:39,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:59:39,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943416058] [2020-10-14 09:59:39,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:59:39,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:59:39,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:59:39,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:59:39,347 INFO L87 Difference]: Start difference. First operand 221 states and 327 transitions. Second operand 4 states. [2020-10-14 09:59:39,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:59:39,841 INFO L93 Difference]: Finished difference Result 429 states and 642 transitions. [2020-10-14 09:59:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:59:39,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-10-14 09:59:39,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:59:39,845 INFO L225 Difference]: With dead ends: 429 [2020-10-14 09:59:39,846 INFO L226 Difference]: Without dead ends: 324 [2020-10-14 09:59:39,847 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 [2020-10-14 09:59:39,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-14 09:59:39,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2020-10-14 09:59:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-14 09:59:39,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 480 transitions. [2020-10-14 09:59:39,875 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 480 transitions. Word has length 45 [2020-10-14 09:59:39,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:59:39,876 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 480 transitions. [2020-10-14 09:59:39,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:59:39,876 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 480 transitions. [2020-10-14 09:59:39,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 09:59:39,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:59:39,883 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:59:39,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 09:59:39,884 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:59:39,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:59:39,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1232851839, now seen corresponding path program 1 times [2020-10-14 09:59:39,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:59:39,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139944279] [2020-10-14 09:59:39,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:59:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:39,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:40,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:40,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:40,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:42,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:42,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 09:59:42,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 09:59:42,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2390 [2020-10-14 09:59:42,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:42,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:59:42,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-14 09:59:42,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 09:59:42,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:59:42,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:59:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:42,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:42,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:42,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:59:42,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:59:42,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 09:59:42,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:42,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:59:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:59:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:59:42,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:59:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 09:59:42,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139944279] [2020-10-14 09:59:42,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:59:42,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:59:42,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967110441] [2020-10-14 09:59:42,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:59:42,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:59:42,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:59:42,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:59:42,391 INFO L87 Difference]: Start difference. First operand 324 states and 480 transitions. Second operand 4 states. [2020-10-14 09:59:42,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:59:42,846 INFO L93 Difference]: Finished difference Result 635 states and 948 transitions. [2020-10-14 09:59:42,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:59:42,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-14 09:59:42,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:59:42,850 INFO L225 Difference]: With dead ends: 635 [2020-10-14 09:59:42,850 INFO L226 Difference]: Without dead ends: 427 [2020-10-14 09:59:42,852 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 [2020-10-14 09:59:42,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-14 09:59:42,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2020-10-14 09:59:42,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-10-14 09:59:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 634 transitions. [2020-10-14 09:59:42,878 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 634 transitions. Word has length 63 [2020-10-14 09:59:42,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:59:42,880 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 634 transitions. [2020-10-14 09:59:42,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:59:42,881 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 634 transitions. [2020-10-14 09:59:42,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 09:59:42,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:59:42,890 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2020-10-14 09:59:42,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 09:59:42,890 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:59:42,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:59:42,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1484297928, now seen corresponding path program 1 times [2020-10-14 09:59:42,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:59:42,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595417612] [2020-10-14 09:59:42,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:59:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:42,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:42,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:43,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:43,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:44,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:44,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:47,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:47,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 09:59:47,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 09:59:47,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 09:59:47,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:47,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:47,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:59:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-14 09:59:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 09:59:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 09:59:48,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:59:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:48,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:48,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:48,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:59:48,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:59:48,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 09:59:48,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:48,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:48,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:59:48,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:59:48,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:59:48,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:59:48,062 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-14 09:59:48,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595417612] [2020-10-14 09:59:48,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:59:48,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:59:48,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710268800] [2020-10-14 09:59:48,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:59:48,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:59:48,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:59:48,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:59:48,065 INFO L87 Difference]: Start difference. First operand 427 states and 634 transitions. Second operand 4 states. [2020-10-14 09:59:48,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:59:48,476 INFO L93 Difference]: Finished difference Result 841 states and 1256 transitions. [2020-10-14 09:59:48,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:59:48,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-10-14 09:59:48,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:59:48,482 INFO L225 Difference]: With dead ends: 841 [2020-10-14 09:59:48,482 INFO L226 Difference]: Without dead ends: 530 [2020-10-14 09:59:48,484 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 [2020-10-14 09:59:48,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-14 09:59:48,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2020-10-14 09:59:48,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-10-14 09:59:48,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 789 transitions. [2020-10-14 09:59:48,511 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 789 transitions. Word has length 83 [2020-10-14 09:59:48,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:59:48,513 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 789 transitions. [2020-10-14 09:59:48,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:59:48,513 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 789 transitions. [2020-10-14 09:59:48,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 09:59:48,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:59:48,517 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:59:48,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 09:59:48,517 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:59:48,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:59:48,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1752782965, now seen corresponding path program 1 times [2020-10-14 09:59:48,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:59:48,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433240607] [2020-10-14 09:59:48,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:59:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:48,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:48,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:50,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:50,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 09:59:50,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 09:59:50,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2084 [2020-10-14 09:59:50,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:50,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 09:59:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-14 09:59:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 09:59:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:59:50,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:59:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:50,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:50,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:50,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:59:50,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:59:50,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 09:59:50,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:50,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:50,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:59:50,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:59:50,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:59:50,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:59:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 09:59:50,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433240607] [2020-10-14 09:59:50,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:59:50,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:59:50,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026478953] [2020-10-14 09:59:50,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 09:59:50,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:59:50,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 09:59:50,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:59:50,774 INFO L87 Difference]: Start difference. First operand 530 states and 789 transitions. Second operand 5 states. [2020-10-14 09:59:51,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:59:51,804 INFO L93 Difference]: Finished difference Result 1509 states and 2258 transitions. [2020-10-14 09:59:51,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:59:51,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-14 09:59:51,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:59:51,814 INFO L225 Difference]: With dead ends: 1509 [2020-10-14 09:59:51,814 INFO L226 Difference]: Without dead ends: 992 [2020-10-14 09:59:51,816 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 [2020-10-14 09:59:51,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2020-10-14 09:59:51,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 635. [2020-10-14 09:59:51,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-10-14 09:59:51,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 964 transitions. [2020-10-14 09:59:51,854 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 964 transitions. Word has length 104 [2020-10-14 09:59:51,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:59:51,855 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 964 transitions. [2020-10-14 09:59:51,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 09:59:51,855 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 964 transitions. [2020-10-14 09:59:51,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 09:59:51,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:59:51,861 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:59:51,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 09:59:51,861 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:59:51,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:59:51,862 INFO L82 PathProgramCache]: Analyzing trace with hash 66603127, now seen corresponding path program 1 times [2020-10-14 09:59:51,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:59:51,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628647465] [2020-10-14 09:59:51,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:59:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:51,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:52,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:52,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:52,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 09:59:52,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 09:59:52,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-10-14 09:59:52,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:52,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:52,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 09:59:52,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 09:59:52,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 09:59:52,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:59:52,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:59:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:52,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:52,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:52,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:59:52,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:59:52,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 09:59:52,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:52,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:52,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:59:52,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:59:52,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:59:52,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:59:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-14 09:59:52,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628647465] [2020-10-14 09:59:52,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:59:52,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:59:52,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522256568] [2020-10-14 09:59:52,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 09:59:52,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:59:52,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 09:59:52,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:59:52,705 INFO L87 Difference]: Start difference. First operand 635 states and 964 transitions. Second operand 5 states. [2020-10-14 09:59:53,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:59:53,540 INFO L93 Difference]: Finished difference Result 1341 states and 2035 transitions. [2020-10-14 09:59:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:59:53,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-14 09:59:53,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:59:53,546 INFO L225 Difference]: With dead ends: 1341 [2020-10-14 09:59:53,546 INFO L226 Difference]: Without dead ends: 719 [2020-10-14 09:59:53,548 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 [2020-10-14 09:59:53,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-10-14 09:59:53,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 643. [2020-10-14 09:59:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-10-14 09:59:53,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 977 transitions. [2020-10-14 09:59:53,570 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 977 transitions. Word has length 104 [2020-10-14 09:59:53,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:59:53,570 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 977 transitions. [2020-10-14 09:59:53,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 09:59:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 977 transitions. [2020-10-14 09:59:53,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 09:59:53,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:59:53,572 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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] [2020-10-14 09:59:53,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 09:59:53,573 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:59:53,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:59:53,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1176276572, now seen corresponding path program 1 times [2020-10-14 09:59:53,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:59:53,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225656944] [2020-10-14 09:59:53,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:59:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:53,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:53,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:54,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:54,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 09:59:54,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 09:59:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 720 [2020-10-14 09:59:54,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:54,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 09:59:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 09:59:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 09:59:54,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:59:54,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:59:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:59:54,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:59:54,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:59:54,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:59:54,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:59:54,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 09:59:54,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:59:54,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:59:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:59:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:59:54,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:59:54,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:59:54,397 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-14 09:59:54,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225656944] [2020-10-14 09:59:54,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:59:54,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:59:54,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648312945] [2020-10-14 09:59:54,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 09:59:54,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:59:54,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 09:59:54,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:59:54,399 INFO L87 Difference]: Start difference. First operand 643 states and 977 transitions. Second operand 5 states. [2020-10-14 09:59:55,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:59:55,488 INFO L93 Difference]: Finished difference Result 1336 states and 2028 transitions. [2020-10-14 09:59:55,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:59:55,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-10-14 09:59:55,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:59:55,496 INFO L225 Difference]: With dead ends: 1336 [2020-10-14 09:59:55,496 INFO L226 Difference]: Without dead ends: 714 [2020-10-14 09:59:55,499 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 [2020-10-14 09:59:55,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-10-14 09:59:55,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 644. [2020-10-14 09:59:55,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-14 09:59:55,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 978 transitions. [2020-10-14 09:59:55,539 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 978 transitions. Word has length 105 [2020-10-14 09:59:55,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:59:55,539 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 978 transitions. [2020-10-14 09:59:55,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 09:59:55,540 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 978 transitions. [2020-10-14 09:59:55,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-14 09:59:55,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:59:55,543 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] [2020-10-14 09:59:55,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 09:59:55,544 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:59:55,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:59:55,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1055455695, now seen corresponding path program 1 times [2020-10-14 09:59:55,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:59:55,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379989168] [2020-10-14 09:59:55,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:59:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 09:59:55,760 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 09:59:55,761 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 09:59:55,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 09:59:55,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 09:59:55 BoogieIcfgContainer [2020-10-14 09:59:55,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 09:59:55,845 INFO L168 Benchmark]: Toolchain (without parser) took 24834.36 ms. Allocated memory was 147.3 MB in the beginning and 635.4 MB in the end (delta: 488.1 MB). Free memory was 100.3 MB in the beginning and 528.4 MB in the end (delta: -428.1 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. [2020-10-14 09:59:55,845 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.2 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 09:59:55,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 881.57 ms. Allocated memory was 147.3 MB in the beginning and 206.0 MB in the end (delta: 58.7 MB). Free memory was 99.9 MB in the beginning and 167.1 MB in the end (delta: -67.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-10-14 09:59:55,847 INFO L168 Benchmark]: Boogie Preprocessor took 193.33 ms. Allocated memory is still 206.0 MB. Free memory was 167.1 MB in the beginning and 159.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. [2020-10-14 09:59:55,848 INFO L168 Benchmark]: RCFGBuilder took 1198.30 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 159.3 MB in the beginning and 177.8 MB in the end (delta: -18.5 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2020-10-14 09:59:55,849 INFO L168 Benchmark]: TraceAbstraction took 22552.55 ms. Allocated memory was 235.9 MB in the beginning and 635.4 MB in the end (delta: 399.5 MB). Free memory was 177.8 MB in the beginning and 528.4 MB in the end (delta: -350.6 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. [2020-10-14 09:59:55,853 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.2 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 881.57 ms. Allocated memory was 147.3 MB in the beginning and 206.0 MB in the end (delta: 58.7 MB). Free memory was 99.9 MB in the beginning and 167.1 MB in the end (delta: -67.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 193.33 ms. Allocated memory is still 206.0 MB. Free memory was 167.1 MB in the beginning and 159.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1198.30 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 159.3 MB in the beginning and 177.8 MB in the end (delta: -18.5 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22552.55 ms. Allocated memory was 235.9 MB in the beginning and 635.4 MB in the end (delta: 399.5 MB). Free memory was 177.8 MB in the beginning and 528.4 MB in the end (delta: -350.6 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1641]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 1336. 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 ; [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 = __VERIFIER_nondet_int() ; [L1092] int tmp___4 = __VERIFIER_nondet_int() ; [L1093] int tmp___5 = __VERIFIER_nondet_int() ; [L1094] int tmp___6 = __VERIFIER_nondet_int() ; [L1095] int tmp___7 = __VERIFIER_nondet_int() ; [L1096] int tmp___8 = __VERIFIER_nondet_int() ; [L1097] long tmp___9 = __VERIFIER_nondet_long() ; [L1098] int blastFlag ; [L1101] blastFlag = 0 [L1102] s->hit=__VERIFIER_nondet_int () [L1103] s->state = 12292 [L1104] tmp = __VERIFIER_nondet_int() [L1105] cb = (void (*)())((void *)0) [L1106] ret = -1 [L1107] skip = 0 [L1108] EXPR s->info_callback [L1108] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1109] EXPR s->info_callback [L1109] cb = s->info_callback [L1117] EXPR s->in_handshake [L1117] s->in_handshake += 1 [L1118] COND FALSE !(tmp___1 & 12288) [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND TRUE s->state == 12292 [L1234] s->new_session = 1 [L1235] s->state = 4096 [L1236] EXPR s->ctx [L1236] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1236] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1241] s->server = 0 [L1242] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) [L1247] EXPR s->version [L1247] COND FALSE !((s->version & 65280) != 768) [L1253] s->type = 4096 [L1254] EXPR s->init_buf [L1254] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1272] COND FALSE !(! tmp___4) [L1278] COND FALSE !(! tmp___5) [L1284] s->state = 4368 [L1285] EXPR s->ctx [L1285] EXPR (s->ctx)->stats.sess_connect [L1285] (s->ctx)->stats.sess_connect += 1 [L1286] s->init_num = 0 [L1600] EXPR s->s3 [L1600] EXPR (s->s3)->tmp.reuse_message [L1600] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1629] skip = 0 [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND FALSE !(s->state == 12292) [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 16384) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 4096) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 20480) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 4099) [L1146] EXPR s->state [L1146] COND TRUE s->state == 4368 [L1290] s->shutdown = 0 [L1291] ret = __VERIFIER_nondet_int() [L1292] COND TRUE blastFlag == 0 [L1293] blastFlag = 1 [L1301] COND FALSE !(ret <= 0) [L1306] s->state = 4384 [L1307] s->init_num = 0 [L1308] EXPR s->bbio [L1308] EXPR s->wbio [L1308] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1600] EXPR s->s3 [L1600] EXPR (s->s3)->tmp.reuse_message [L1600] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1629] skip = 0 [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND FALSE !(s->state == 12292) [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 16384) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 4096) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 20480) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 4099) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4368) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4369) [L1152] EXPR s->state [L1152] COND TRUE s->state == 4384 [L1316] ret = __VERIFIER_nondet_int() [L1317] COND TRUE blastFlag == 1 [L1318] blastFlag = 2 [L1322] COND FALSE !(ret <= 0) [L1327] s->hit [L1327] COND FALSE !(s->hit) [L1330] s->state = 4400 [L1332] s->init_num = 0 [L1600] EXPR s->s3 [L1600] EXPR (s->s3)->tmp.reuse_message [L1600] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1629] skip = 0 [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND FALSE !(s->state == 12292) [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 16384) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 4096) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 20480) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 4099) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4368) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4369) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4384) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4385) [L1158] EXPR s->state [L1158] COND TRUE s->state == 4400 [L1336] EXPR s->s3 [L1336] EXPR (s->s3)->tmp.new_cipher [L1336] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1336] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1339] ret = __VERIFIER_nondet_int() [L1340] COND TRUE blastFlag == 2 [L1341] blastFlag = 3 [L1345] COND FALSE !(ret <= 0) [L1351] s->state = 4416 [L1352] s->init_num = 0 [L1600] EXPR s->s3 [L1600] EXPR (s->s3)->tmp.reuse_message [L1600] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1629] skip = 0 [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND FALSE !(s->state == 12292) [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 16384) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 4096) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 20480) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 4099) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4368) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4369) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4384) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4385) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4400) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4401) [L1164] EXPR s->state [L1164] COND TRUE s->state == 4416 [L1356] ret = __VERIFIER_nondet_int() [L1357] COND TRUE blastFlag == 3 [L1358] blastFlag = 4 [L1362] COND FALSE !(ret <= 0) [L1367] s->state = 4432 [L1368] s->init_num = 0 [L1369] COND FALSE !(! tmp___6) [L1600] EXPR s->s3 [L1600] EXPR (s->s3)->tmp.reuse_message [L1600] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1629] skip = 0 [L1128] COND TRUE 1 [L1130] EXPR s->state [L1130] state = s->state [L1131] EXPR s->state [L1131] COND FALSE !(s->state == 12292) [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 16384) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 4096) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 20480) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 4099) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4368) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4369) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4384) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4385) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4400) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4401) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4416) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4417) [L1170] EXPR s->state [L1170] COND TRUE s->state == 4432 [L1378] ret = __VERIFIER_nondet_int() [L1379] COND TRUE blastFlag == 4 [L1641] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 166 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.4s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1185 SDtfs, 884 SDslu, 1406 SDs, 0 SdLazy, 2181 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=644occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 503 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 652 NumberOfCodeBlocks, 652 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 527 ConstructedInterpolants, 0 QuantifiedInterpolants, 137538 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 460/460 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...