/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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.04.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 04:36:45,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 04:36:45,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 04:36:45,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 04:36:45,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 04:36:45,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 04:36:45,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 04:36:45,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 04:36:45,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 04:36:45,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 04:36:45,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 04:36:45,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 04:36:45,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 04:36:45,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 04:36:45,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 04:36:45,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 04:36:45,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 04:36:45,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 04:36:45,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 04:36:45,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 04:36:45,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 04:36:45,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 04:36:45,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 04:36:45,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 04:36:45,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 04:36:45,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 04:36:45,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 04:36:45,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 04:36:45,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 04:36:45,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 04:36:45,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 04:36:45,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 04:36:45,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 04:36:45,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 04:36:45,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 04:36:45,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 04:36:45,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 04:36:45,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 04:36:45,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 04:36:45,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 04:36:45,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 04:36:45,735 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 [2020-10-15 04:36:45,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 04:36:45,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 04:36:45,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 04:36:45,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 04:36:45,790 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 04:36:45,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 04:36:45,790 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 04:36:45,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 04:36:45,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 04:36:45,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 04:36:45,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 04:36:45,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 04:36:45,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 04:36:45,792 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 04:36:45,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 04:36:45,792 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 04:36:45,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 04:36:45,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 04:36:45,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 04:36:45,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 04:36:45,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 04:36:45,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:36:45,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 04:36:45,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 04:36:45,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 04:36:45,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 04:36:45,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 04:36:45,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 04:36:45,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 04:36:45,795 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 04:36:46,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 04:36:46,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 04:36:46,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 04:36:46,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 04:36:46,152 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 04:36:46,153 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh/s3_clnt.blast.04.i.cil-1.c [2020-10-15 04:36:46,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a70be76e9/879d02f9d75246108ab015697e2acfe4/FLAGe144fd9cc [2020-10-15 04:36:46,907 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 04:36:46,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh/s3_clnt.blast.04.i.cil-1.c [2020-10-15 04:36:46,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a70be76e9/879d02f9d75246108ab015697e2acfe4/FLAGe144fd9cc [2020-10-15 04:36:47,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a70be76e9/879d02f9d75246108ab015697e2acfe4 [2020-10-15 04:36:47,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 04:36:47,191 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 04:36:47,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 04:36:47,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 04:36:47,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 04:36:47,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:36:47" (1/1) ... [2020-10-15 04:36:47,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be077f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:36:47, skipping insertion in model container [2020-10-15 04:36:47,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:36:47" (1/1) ... [2020-10-15 04:36:47,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 04:36:47,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 04:36:47,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:36:47,904 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 04:36:48,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:36:48,116 INFO L208 MainTranslator]: Completed translation [2020-10-15 04:36:48,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:36:48 WrapperNode [2020-10-15 04:36:48,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 04:36:48,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 04:36:48,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 04:36:48,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 04:36:48,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:36:48" (1/1) ... [2020-10-15 04:36:48,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:36:48" (1/1) ... [2020-10-15 04:36:48,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:36:48" (1/1) ... [2020-10-15 04:36:48,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:36:48" (1/1) ... [2020-10-15 04:36:48,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:36:48" (1/1) ... [2020-10-15 04:36:48,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:36:48" (1/1) ... [2020-10-15 04:36:48,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:36:48" (1/1) ... [2020-10-15 04:36:48,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 04:36:48,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 04:36:48,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 04:36:48,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 04:36:48,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:36:48" (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 [2020-10-15 04:36:48,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 04:36:48,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 04:36:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2020-10-15 04:36:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2020-10-15 04:36:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 04:36:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-15 04:36:48,411 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2020-10-15 04:36:48,412 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-15 04:36:48,412 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-15 04:36:48,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 04:36:48,412 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 04:36:48,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 04:36:48,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 04:36:48,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-15 04:36:48,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 04:36:48,414 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-15 04:36:48,414 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2020-10-15 04:36:48,415 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2020-10-15 04:36:48,415 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-15 04:36:48,415 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2020-10-15 04:36:48,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-15 04:36:48,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 04:36:48,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 04:36:48,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 04:36:48,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 04:36:48,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 04:36:48,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 04:36:48,418 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-15 04:36:48,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-15 04:36:48,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 04:36:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 04:36:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 04:36:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-15 04:36:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-15 04:36:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-15 04:36:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-15 04:36:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 04:36:48,963 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 04:36:49,612 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-15 04:36:49,613 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-15 04:36:49,637 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 04:36:49,637 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 04:36:49,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:36:49 BoogieIcfgContainer [2020-10-15 04:36:49,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 04:36:49,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 04:36:49,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 04:36:49,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 04:36:49,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:36:47" (1/3) ... [2020-10-15 04:36:49,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17811803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:36:49, skipping insertion in model container [2020-10-15 04:36:49,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:36:48" (2/3) ... [2020-10-15 04:36:49,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17811803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:36:49, skipping insertion in model container [2020-10-15 04:36:49,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:36:49" (3/3) ... [2020-10-15 04:36:49,650 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-1.c [2020-10-15 04:36:49,660 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 04:36:49,669 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 04:36:49,683 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 04:36:49,710 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 04:36:49,710 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 04:36:49,710 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 04:36:49,710 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 04:36:49,710 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 04:36:49,710 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 04:36:49,711 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 04:36:49,711 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 04:36:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-10-15 04:36:49,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 04:36:49,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:36:49,743 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] [2020-10-15 04:36:49,743 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:36:49,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:36:49,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1671955434, now seen corresponding path program 1 times [2020-10-15 04:36:49,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:36:49,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954130968] [2020-10-15 04:36:49,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:36:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:50,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:50,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:50,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:51,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:51,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-15 04:36:51,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:36:51,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1120 [2020-10-15 04:36:51,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:51,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:51,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:36:51,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 04:36:51,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 04:36:51,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 04:36:51,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:36:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:51,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:51,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:51,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:36:51,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:36:51,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 04:36:51,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:51,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:51,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:36:51,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:36:51,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:36:51,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:36:51,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954130968] [2020-10-15 04:36:51,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:36:51,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:36:51,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542252984] [2020-10-15 04:36:51,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:36:51,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:36:51,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:36:51,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:36:51,216 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 4 states. [2020-10-15 04:36:51,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:36:51,927 INFO L93 Difference]: Finished difference Result 381 states and 638 transitions. [2020-10-15 04:36:51,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:36:51,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-15 04:36:51,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:36:51,944 INFO L225 Difference]: With dead ends: 381 [2020-10-15 04:36:51,944 INFO L226 Difference]: Without dead ends: 221 [2020-10-15 04:36:51,949 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 [2020-10-15 04:36:51,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-10-15 04:36:52,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2020-10-15 04:36:52,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-15 04:36:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 327 transitions. [2020-10-15 04:36:52,012 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 327 transitions. Word has length 30 [2020-10-15 04:36:52,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:36:52,013 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 327 transitions. [2020-10-15 04:36:52,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:36:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 327 transitions. [2020-10-15 04:36:52,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-15 04:36:52,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:36:52,016 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] [2020-10-15 04:36:52,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 04:36:52,017 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:36:52,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:36:52,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1986456738, now seen corresponding path program 1 times [2020-10-15 04:36:52,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:36:52,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123299479] [2020-10-15 04:36:52,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:36:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:52,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:52,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:52,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:52,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:52,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:55,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:55,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-15 04:36:55,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 04:36:55,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3548 [2020-10-15 04:36:55,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:55,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:55,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:36:55,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 04:36:55,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 04:36:55,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:55,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:36:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:55,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:55,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:55,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:36:55,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:36:55,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 04:36:55,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:55,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:55,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:36:55,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:36:55,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:36:55,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:36:55,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123299479] [2020-10-15 04:36:55,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:36:55,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:36:55,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691836008] [2020-10-15 04:36:55,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:36:55,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:36:55,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:36:55,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:36:55,679 INFO L87 Difference]: Start difference. First operand 221 states and 327 transitions. Second operand 4 states. [2020-10-15 04:36:56,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:36:56,233 INFO L93 Difference]: Finished difference Result 429 states and 642 transitions. [2020-10-15 04:36:56,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:36:56,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-10-15 04:36:56,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:36:56,238 INFO L225 Difference]: With dead ends: 429 [2020-10-15 04:36:56,238 INFO L226 Difference]: Without dead ends: 324 [2020-10-15 04:36:56,240 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 [2020-10-15 04:36:56,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-15 04:36:56,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2020-10-15 04:36:56,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-15 04:36:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 480 transitions. [2020-10-15 04:36:56,265 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 480 transitions. Word has length 45 [2020-10-15 04:36:56,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:36:56,265 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 480 transitions. [2020-10-15 04:36:56,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:36:56,266 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 480 transitions. [2020-10-15 04:36:56,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 04:36:56,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:36:56,270 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] [2020-10-15 04:36:56,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 04:36:56,271 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:36:56,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:36:56,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1230762276, now seen corresponding path program 1 times [2020-10-15 04:36:56,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:36:56,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104079870] [2020-10-15 04:36:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:36:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:56,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:56,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:56,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:56,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:58,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:58,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 04:36:58,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:36:58,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2529 [2020-10-15 04:36:58,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:58,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:36:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-15 04:36:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 04:36:58,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:58,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:36:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:58,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:58,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:58,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:36:58,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:36:58,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 04:36:58,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:58,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:36:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:36:58,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:36:58,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:58,945 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 04:36:58,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104079870] [2020-10-15 04:36:58,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:36:58,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:36:58,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052291390] [2020-10-15 04:36:58,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:36:58,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:36:58,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:36:58,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:36:58,947 INFO L87 Difference]: Start difference. First operand 324 states and 480 transitions. Second operand 4 states. [2020-10-15 04:36:59,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:36:59,425 INFO L93 Difference]: Finished difference Result 635 states and 948 transitions. [2020-10-15 04:36:59,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:36:59,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-15 04:36:59,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:36:59,429 INFO L225 Difference]: With dead ends: 635 [2020-10-15 04:36:59,429 INFO L226 Difference]: Without dead ends: 427 [2020-10-15 04:36:59,430 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 [2020-10-15 04:36:59,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-15 04:36:59,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2020-10-15 04:36:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-10-15 04:36:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 634 transitions. [2020-10-15 04:36:59,450 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 634 transitions. Word has length 63 [2020-10-15 04:36:59,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:36:59,451 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 634 transitions. [2020-10-15 04:36:59,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:36:59,451 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 634 transitions. [2020-10-15 04:36:59,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 04:36:59,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:36:59,455 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] [2020-10-15 04:36:59,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 04:36:59,456 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:36:59,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:36:59,456 INFO L82 PathProgramCache]: Analyzing trace with hash -647149250, now seen corresponding path program 1 times [2020-10-15 04:36:59,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:36:59,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879684368] [2020-10-15 04:36:59,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:36:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:59,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:59,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:59,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:00,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:00,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:00,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:04,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:04,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 04:37:04,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:37:04,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 04:37:04,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:04,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:37:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-15 04:37:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 04:37:04,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 04:37:04,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:37:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:04,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:04,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:04,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:37:04,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:37:04,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 04:37:04,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:04,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:37:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:37:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:37:04,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:04,612 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-15 04:37:04,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879684368] [2020-10-15 04:37:04,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:37:04,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:37:04,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053689452] [2020-10-15 04:37:04,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:37:04,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:37:04,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:37:04,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:04,615 INFO L87 Difference]: Start difference. First operand 427 states and 634 transitions. Second operand 4 states. [2020-10-15 04:37:05,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:37:05,108 INFO L93 Difference]: Finished difference Result 841 states and 1256 transitions. [2020-10-15 04:37:05,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:37:05,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-10-15 04:37:05,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:37:05,115 INFO L225 Difference]: With dead ends: 841 [2020-10-15 04:37:05,115 INFO L226 Difference]: Without dead ends: 530 [2020-10-15 04:37:05,117 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 [2020-10-15 04:37:05,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-15 04:37:05,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2020-10-15 04:37:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-10-15 04:37:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 789 transitions. [2020-10-15 04:37:05,134 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 789 transitions. Word has length 83 [2020-10-15 04:37:05,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:37:05,136 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 789 transitions. [2020-10-15 04:37:05,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:37:05,136 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 789 transitions. [2020-10-15 04:37:05,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 04:37:05,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:37:05,142 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] [2020-10-15 04:37:05,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 04:37:05,142 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:37:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:37:05,143 INFO L82 PathProgramCache]: Analyzing trace with hash -982783041, now seen corresponding path program 1 times [2020-10-15 04:37:05,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:37:05,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388363757] [2020-10-15 04:37:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:37:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:05,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:05,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:05,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:07,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:07,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 04:37:07,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:37:07,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2069 [2020-10-15 04:37:07,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:07,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:07,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 04:37:07,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-15 04:37:07,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 04:37:07,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:07,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:37:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:07,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:07,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:07,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:37:07,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:37:07,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 04:37:07,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:07,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:07,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:37:07,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:37:07,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:37:07,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:07,424 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-15 04:37:07,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388363757] [2020-10-15 04:37:07,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:37:07,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:37:07,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202025332] [2020-10-15 04:37:07,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:37:07,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:37:07,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:37:07,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:37:07,429 INFO L87 Difference]: Start difference. First operand 530 states and 789 transitions. Second operand 5 states. [2020-10-15 04:37:08,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:37:08,649 INFO L93 Difference]: Finished difference Result 1509 states and 2258 transitions. [2020-10-15 04:37:08,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:37:08,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-15 04:37:08,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:37:08,656 INFO L225 Difference]: With dead ends: 1509 [2020-10-15 04:37:08,656 INFO L226 Difference]: Without dead ends: 992 [2020-10-15 04:37:08,658 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 [2020-10-15 04:37:08,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2020-10-15 04:37:08,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 635. [2020-10-15 04:37:08,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-10-15 04:37:08,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 964 transitions. [2020-10-15 04:37:08,722 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 964 transitions. Word has length 104 [2020-10-15 04:37:08,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:37:08,723 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 964 transitions. [2020-10-15 04:37:08,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:37:08,723 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 964 transitions. [2020-10-15 04:37:08,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 04:37:08,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:37:08,726 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] [2020-10-15 04:37:08,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 04:37:08,727 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:37:08,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:37:08,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1626004417, now seen corresponding path program 1 times [2020-10-15 04:37:08,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:37:08,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628258201] [2020-10-15 04:37:08,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:37:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:08,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:08,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:09,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:09,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 04:37:09,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:37:09,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 678 [2020-10-15 04:37:09,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:09,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:09,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 04:37:09,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 04:37:09,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 04:37:09,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:09,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:37:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:09,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:09,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:09,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:37:09,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:37:09,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 04:37:09,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:09,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:37:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:37:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:37:09,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:09,519 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-15 04:37:09,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628258201] [2020-10-15 04:37:09,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:37:09,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:37:09,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847774097] [2020-10-15 04:37:09,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:37:09,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:37:09,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:37:09,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:37:09,522 INFO L87 Difference]: Start difference. First operand 635 states and 964 transitions. Second operand 5 states. [2020-10-15 04:37:10,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:37:10,417 INFO L93 Difference]: Finished difference Result 1341 states and 2035 transitions. [2020-10-15 04:37:10,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:37:10,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-15 04:37:10,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:37:10,422 INFO L225 Difference]: With dead ends: 1341 [2020-10-15 04:37:10,423 INFO L226 Difference]: Without dead ends: 719 [2020-10-15 04:37:10,425 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 [2020-10-15 04:37:10,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-10-15 04:37:10,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 643. [2020-10-15 04:37:10,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-10-15 04:37:10,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 977 transitions. [2020-10-15 04:37:10,452 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 977 transitions. Word has length 104 [2020-10-15 04:37:10,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:37:10,454 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 977 transitions. [2020-10-15 04:37:10,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:37:10,454 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 977 transitions. [2020-10-15 04:37:10,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-15 04:37:10,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:37:10,460 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] [2020-10-15 04:37:10,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 04:37:10,461 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:37:10,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:37:10,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1559289434, now seen corresponding path program 1 times [2020-10-15 04:37:10,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:37:10,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547289956] [2020-10-15 04:37:10,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:37:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:10,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:10,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:11,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:11,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 04:37:11,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:37:11,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 825 [2020-10-15 04:37:11,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:11,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 04:37:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 04:37:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 04:37:11,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:11,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:37:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:11,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:11,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:11,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:37:11,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:37:11,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 04:37:11,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:11,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:11,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:37:11,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:37:11,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:37:11,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:11,408 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-15 04:37:11,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547289956] [2020-10-15 04:37:11,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:37:11,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:37:11,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389250314] [2020-10-15 04:37:11,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:37:11,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:37:11,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:37:11,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:37:11,411 INFO L87 Difference]: Start difference. First operand 643 states and 977 transitions. Second operand 5 states. [2020-10-15 04:37:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:37:12,264 INFO L93 Difference]: Finished difference Result 1337 states and 2029 transitions. [2020-10-15 04:37:12,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:37:12,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-10-15 04:37:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:37:12,271 INFO L225 Difference]: With dead ends: 1337 [2020-10-15 04:37:12,271 INFO L226 Difference]: Without dead ends: 715 [2020-10-15 04:37:12,273 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 [2020-10-15 04:37:12,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2020-10-15 04:37:12,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 644. [2020-10-15 04:37:12,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-15 04:37:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 978 transitions. [2020-10-15 04:37:12,305 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 978 transitions. Word has length 105 [2020-10-15 04:37:12,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:37:12,306 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 978 transitions. [2020-10-15 04:37:12,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:37:12,306 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 978 transitions. [2020-10-15 04:37:12,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-15 04:37:12,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:37:12,308 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] [2020-10-15 04:37:12,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 04:37:12,309 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:37:12,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:37:12,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1680110311, now seen corresponding path program 1 times [2020-10-15 04:37:12,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:37:12,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228888636] [2020-10-15 04:37:12,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:37:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 04:37:12,445 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 04:37:12,445 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 04:37:12,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 04:37:12,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:37:12 BoogieIcfgContainer [2020-10-15 04:37:12,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 04:37:12,508 INFO L168 Benchmark]: Toolchain (without parser) took 25317.31 ms. Allocated memory was 148.4 MB in the beginning and 619.2 MB in the end (delta: 470.8 MB). Free memory was 102.3 MB in the beginning and 226.4 MB in the end (delta: -124.1 MB). Peak memory consumption was 346.7 MB. Max. memory is 7.1 GB. [2020-10-15 04:37:12,509 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-15 04:37:12,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 925.49 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 101.9 MB in the beginning and 162.7 MB in the end (delta: -60.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-15 04:37:12,511 INFO L168 Benchmark]: Boogie Preprocessor took 189.10 ms. Allocated memory is still 204.5 MB. Free memory was 162.7 MB in the beginning and 155.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2020-10-15 04:37:12,511 INFO L168 Benchmark]: RCFGBuilder took 1334.27 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 155.1 MB in the beginning and 175.0 MB in the end (delta: -19.9 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. [2020-10-15 04:37:12,512 INFO L168 Benchmark]: TraceAbstraction took 22862.78 ms. Allocated memory was 236.5 MB in the beginning and 619.2 MB in the end (delta: 382.7 MB). Free memory was 175.0 MB in the beginning and 226.4 MB in the end (delta: -51.4 MB). Peak memory consumption was 331.3 MB. Max. memory is 7.1 GB. [2020-10-15 04:37:12,516 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 925.49 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 101.9 MB in the beginning and 162.7 MB in the end (delta: -60.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 189.10 ms. Allocated memory is still 204.5 MB. Free memory was 162.7 MB in the beginning and 155.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1334.27 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 155.1 MB in the beginning and 175.0 MB in the end (delta: -19.9 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22862.78 ms. Allocated memory was 236.5 MB in the beginning and 619.2 MB in the end (delta: 382.7 MB). Free memory was 175.0 MB in the beginning and 226.4 MB in the end (delta: -51.4 MB). Peak memory consumption was 331.3 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 1332. 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 [L1297] COND FALSE !(ret <= 0) [L1302] s->state = 4384 [L1303] s->init_num = 0 [L1304] EXPR s->bbio [L1304] EXPR s->wbio [L1304] 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 [L1312] ret = __VERIFIER_nondet_int() [L1313] COND TRUE blastFlag == 1 [L1314] blastFlag = 2 [L1318] COND FALSE !(ret <= 0) [L1323] s->hit [L1323] COND FALSE !(s->hit) [L1326] s->state = 4400 [L1328] 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 [L1332] EXPR s->s3 [L1332] EXPR (s->s3)->tmp.new_cipher [L1332] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1332] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1335] ret = __VERIFIER_nondet_int() [L1336] COND TRUE blastFlag == 2 [L1337] 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: 22.7s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1185 SDtfs, 885 SDslu, 1406 SDs, 0 SdLazy, 2181 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s 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, 504 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.4s 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...