/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.02.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 04:35:52,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 04:35:52,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 04:35:52,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 04:35:52,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 04:35:52,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 04:35:52,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 04:35:52,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 04:35:52,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 04:35:52,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 04:35:52,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 04:35:52,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 04:35:52,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 04:35:52,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 04:35:52,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 04:35:52,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 04:35:52,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 04:35:52,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 04:35:52,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 04:35:52,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 04:35:52,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 04:35:52,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 04:35:52,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 04:35:52,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 04:35:52,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 04:35:52,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 04:35:52,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 04:35:52,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 04:35:52,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 04:35:52,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 04:35:52,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 04:35:52,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 04:35:52,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 04:35:52,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 04:35:52,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 04:35:52,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 04:35:52,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 04:35:52,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 04:35:52,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 04:35:52,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 04:35:52,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 04:35:52,350 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 04:35:52,371 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 04:35:52,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 04:35:52,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 04:35:52,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 04:35:52,373 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 04:35:52,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 04:35:52,374 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 04:35:52,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 04:35:52,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 04:35:52,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 04:35:52,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 04:35:52,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 04:35:52,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 04:35:52,375 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 04:35:52,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 04:35:52,375 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 04:35:52,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 04:35:52,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 04:35:52,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 04:35:52,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 04:35:52,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 04:35:52,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:35:52,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 04:35:52,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 04:35:52,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 04:35:52,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 04:35:52,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 04:35:52,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 04:35:52,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 04:35:52,378 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 04:35:52,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 04:35:52,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 04:35:52,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 04:35:52,684 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 04:35:52,684 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 04:35:52,685 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh/s3_clnt.blast.02.i.cil-1.c [2020-10-15 04:35:52,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1336d360/cc79d38df1f14214811d7f37020122aa/FLAG172fbe8b9 [2020-10-15 04:35:53,275 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 04:35:53,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh/s3_clnt.blast.02.i.cil-1.c [2020-10-15 04:35:53,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1336d360/cc79d38df1f14214811d7f37020122aa/FLAG172fbe8b9 [2020-10-15 04:35:53,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1336d360/cc79d38df1f14214811d7f37020122aa [2020-10-15 04:35:53,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 04:35:53,623 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 04:35:53,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 04:35:53,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 04:35:53,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 04:35:53,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:35:53" (1/1) ... [2020-10-15 04:35:53,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78ccefb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:35:53, skipping insertion in model container [2020-10-15 04:35:53,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:35:53" (1/1) ... [2020-10-15 04:35:53,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 04:35:53,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 04:35:54,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:35:54,350 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 04:35:54,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:35:54,516 INFO L208 MainTranslator]: Completed translation [2020-10-15 04:35:54,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:35:54 WrapperNode [2020-10-15 04:35:54,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 04:35:54,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 04:35:54,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 04:35:54,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 04:35:54,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:35:54" (1/1) ... [2020-10-15 04:35:54,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:35:54" (1/1) ... [2020-10-15 04:35:54,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:35:54" (1/1) ... [2020-10-15 04:35:54,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:35:54" (1/1) ... [2020-10-15 04:35:54,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:35:54" (1/1) ... [2020-10-15 04:35:54,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:35:54" (1/1) ... [2020-10-15 04:35:54,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:35:54" (1/1) ... [2020-10-15 04:35:54,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 04:35:54,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 04:35:54,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 04:35:54,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 04:35:54,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:35:54" (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 04:35:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 04:35:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 04:35:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2020-10-15 04:35:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2020-10-15 04:35:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 04:35:54,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-15 04:35:54,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2020-10-15 04:35:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-15 04:35:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-15 04:35:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 04:35:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 04:35:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 04:35:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 04:35:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-15 04:35:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 04:35:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-15 04:35:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2020-10-15 04:35:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2020-10-15 04:35:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-15 04:35:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2020-10-15 04:35:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-15 04:35:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 04:35:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 04:35:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 04:35:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 04:35:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 04:35:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 04:35:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-15 04:35:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-15 04:35:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 04:35:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 04:35:54,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 04:35:54,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-15 04:35:54,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-15 04:35:54,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-15 04:35:54,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-15 04:35:54,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 04:35:55,438 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 04:35:55,953 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-15 04:35:55,954 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-15 04:35:55,977 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 04:35:55,977 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 04:35:55,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:35:55 BoogieIcfgContainer [2020-10-15 04:35:55,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 04:35:55,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 04:35:55,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 04:35:55,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 04:35:55,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:35:53" (1/3) ... [2020-10-15 04:35:55,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d2a27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:35:55, skipping insertion in model container [2020-10-15 04:35:55,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:35:54" (2/3) ... [2020-10-15 04:35:55,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d2a27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:35:55, skipping insertion in model container [2020-10-15 04:35:55,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:35:55" (3/3) ... [2020-10-15 04:35:55,989 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.02.i.cil-1.c [2020-10-15 04:35:56,000 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 04:35:56,007 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 04:35:56,021 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 04:35:56,046 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 04:35:56,046 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 04:35:56,046 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 04:35:56,047 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 04:35:56,047 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 04:35:56,047 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 04:35:56,047 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 04:35:56,047 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 04:35:56,067 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-10-15 04:35:56,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 04:35:56,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:35:56,075 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 04:35:56,075 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:35:56,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:35:56,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1671955434, now seen corresponding path program 1 times [2020-10-15 04:35:56,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:35:56,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667592567] [2020-10-15 04:35:56,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:35:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:35:56,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:35:56,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:35:57,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:35:57,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:35:57,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-15 04:35:57,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:35:57,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1228 [2020-10-15 04:35:57,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:35:57,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:35:57,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:35:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 04:35:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 04:35:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 04:35:57,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:35:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:35:57,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:35:57,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:35:57,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:35:57,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:35:57,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 04:35:57,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:35:57,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:35:57,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:35:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:35:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:35:57,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:35:57,668 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 04:35:57,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667592567] [2020-10-15 04:35:57,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:35:57,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:35:57,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942951197] [2020-10-15 04:35:57,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:35:57,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:35:57,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:35:57,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:35:57,694 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 4 states. [2020-10-15 04:35:58,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:35:58,534 INFO L93 Difference]: Finished difference Result 381 states and 638 transitions. [2020-10-15 04:35:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:35:58,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-15 04:35:58,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:35:58,562 INFO L225 Difference]: With dead ends: 381 [2020-10-15 04:35:58,563 INFO L226 Difference]: Without dead ends: 221 [2020-10-15 04:35:58,570 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 04:35:58,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-10-15 04:35:58,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2020-10-15 04:35:58,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-15 04:35:58,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 327 transitions. [2020-10-15 04:35:58,634 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 327 transitions. Word has length 30 [2020-10-15 04:35:58,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:35:58,635 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 327 transitions. [2020-10-15 04:35:58,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:35:58,635 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 327 transitions. [2020-10-15 04:35:58,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-15 04:35:58,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:35:58,638 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 04:35:58,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 04:35:58,639 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:35:58,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:35:58,639 INFO L82 PathProgramCache]: Analyzing trace with hash -714689214, now seen corresponding path program 1 times [2020-10-15 04:35:58,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:35:58,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896183168] [2020-10-15 04:35:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:35:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:35:58,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:35:58,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:35:58,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:35:59,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:35:59,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:02,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:02,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-15 04:36:02,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 04:36:02,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3640 [2020-10-15 04:36:02,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:02,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:36:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 04:36:02,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 04:36:02,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:02,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:36:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:02,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:02,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:02,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:36:02,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:36:02,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 04:36:02,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:02,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:02,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:36:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:36:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:36:02,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:02,416 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 04:36:02,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896183168] [2020-10-15 04:36:02,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:36:02,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:36:02,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960796807] [2020-10-15 04:36:02,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:36:02,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:36:02,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:36:02,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:36:02,420 INFO L87 Difference]: Start difference. First operand 221 states and 327 transitions. Second operand 4 states. [2020-10-15 04:36:02,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:36:02,810 INFO L93 Difference]: Finished difference Result 429 states and 642 transitions. [2020-10-15 04:36:02,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:36:02,811 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-10-15 04:36:02,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:36:02,814 INFO L225 Difference]: With dead ends: 429 [2020-10-15 04:36:02,814 INFO L226 Difference]: Without dead ends: 324 [2020-10-15 04:36:02,816 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 04:36:02,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-15 04:36:02,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2020-10-15 04:36:02,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-15 04:36:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 480 transitions. [2020-10-15 04:36:02,841 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 480 transitions. Word has length 45 [2020-10-15 04:36:02,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:36:02,842 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 480 transitions. [2020-10-15 04:36:02,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:36:02,842 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 480 transitions. [2020-10-15 04:36:02,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 04:36:02,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:36:02,845 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 04:36:02,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 04:36:02,846 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:36:02,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:36:02,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1232851839, now seen corresponding path program 1 times [2020-10-15 04:36:02,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:36:02,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232262105] [2020-10-15 04:36:02,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:36:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:02,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:03,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:03,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:03,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:05,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:05,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 04:36:05,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:36:05,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2523 [2020-10-15 04:36:05,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:05,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:05,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:36:05,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-15 04:36:05,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 04:36:05,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:05,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:36:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:05,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:05,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:05,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:36:05,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:36:05,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 04:36:05,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:05,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:05,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:36:05,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:36:05,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:36:05,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:05,481 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 04:36:05,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232262105] [2020-10-15 04:36:05,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:36:05,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:36:05,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124558891] [2020-10-15 04:36:05,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:36:05,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:36:05,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:36:05,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:36:05,484 INFO L87 Difference]: Start difference. First operand 324 states and 480 transitions. Second operand 4 states. [2020-10-15 04:36:05,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:36:05,982 INFO L93 Difference]: Finished difference Result 635 states and 948 transitions. [2020-10-15 04:36:05,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:36:05,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-15 04:36:05,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:36:05,988 INFO L225 Difference]: With dead ends: 635 [2020-10-15 04:36:05,988 INFO L226 Difference]: Without dead ends: 427 [2020-10-15 04:36:05,990 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 04:36:05,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-15 04:36:06,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2020-10-15 04:36:06,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-10-15 04:36:06,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 634 transitions. [2020-10-15 04:36:06,010 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 634 transitions. Word has length 63 [2020-10-15 04:36:06,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:36:06,011 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 634 transitions. [2020-10-15 04:36:06,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:36:06,011 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 634 transitions. [2020-10-15 04:36:06,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 04:36:06,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:36:06,017 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 04:36:06,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 04:36:06,017 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:36:06,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:36:06,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1484297928, now seen corresponding path program 1 times [2020-10-15 04:36:06,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:36:06,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239067953] [2020-10-15 04:36:06,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:36:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:06,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:06,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:06,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:07,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:07,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:08,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:11,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:11,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 04:36:11,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:36:11,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 04:36:11,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:11,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:36:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-15 04:36:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 04:36:11,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:11,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:36:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:11,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:11,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:11,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:36:11,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:36:11,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 04:36:11,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:11,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:11,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:36:11,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:36:11,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:36:11,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:11,157 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 04:36:11,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239067953] [2020-10-15 04:36:11,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:36:11,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:36:11,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544865702] [2020-10-15 04:36:11,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:36:11,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:36:11,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:36:11,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:36:11,160 INFO L87 Difference]: Start difference. First operand 427 states and 634 transitions. Second operand 4 states. [2020-10-15 04:36:11,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:36:11,575 INFO L93 Difference]: Finished difference Result 841 states and 1256 transitions. [2020-10-15 04:36:11,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:36:11,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-10-15 04:36:11,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:36:11,580 INFO L225 Difference]: With dead ends: 841 [2020-10-15 04:36:11,581 INFO L226 Difference]: Without dead ends: 530 [2020-10-15 04:36:11,582 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 04:36:11,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-15 04:36:11,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2020-10-15 04:36:11,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-10-15 04:36:11,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 789 transitions. [2020-10-15 04:36:11,606 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 789 transitions. Word has length 83 [2020-10-15 04:36:11,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:36:11,607 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 789 transitions. [2020-10-15 04:36:11,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:36:11,607 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 789 transitions. [2020-10-15 04:36:11,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 04:36:11,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:36:11,612 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 04:36:11,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 04:36:11,612 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:36:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:36:11,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1752782965, now seen corresponding path program 1 times [2020-10-15 04:36:11,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:36:11,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095305353] [2020-10-15 04:36:11,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:36:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:11,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:11,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:11,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:13,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:13,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 04:36:13,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:36:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2290 [2020-10-15 04:36:13,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:13,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 04:36:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-15 04:36:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 04:36:13,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 04:36:14,172 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-15 04:36:14,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:36:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:14,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:14,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:14,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:36:14,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:36:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 04:36:14,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:14,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:36:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:36:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:36:14,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:14,223 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 04:36:14,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095305353] [2020-10-15 04:36:14,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:36:14,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:36:14,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074730638] [2020-10-15 04:36:14,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:36:14,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:36:14,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:36:14,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:36:14,229 INFO L87 Difference]: Start difference. First operand 530 states and 789 transitions. Second operand 5 states. [2020-10-15 04:36:15,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:36:15,326 INFO L93 Difference]: Finished difference Result 1509 states and 2258 transitions. [2020-10-15 04:36:15,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:36:15,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-15 04:36:15,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:36:15,334 INFO L225 Difference]: With dead ends: 1509 [2020-10-15 04:36:15,335 INFO L226 Difference]: Without dead ends: 992 [2020-10-15 04:36:15,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:36:15,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2020-10-15 04:36:15,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 635. [2020-10-15 04:36:15,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-10-15 04:36:15,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 964 transitions. [2020-10-15 04:36:15,369 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 964 transitions. Word has length 104 [2020-10-15 04:36:15,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:36:15,369 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 964 transitions. [2020-10-15 04:36:15,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:36:15,370 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 964 transitions. [2020-10-15 04:36:15,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 04:36:15,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:36:15,373 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 04:36:15,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 04:36:15,373 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:36:15,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:36:15,376 INFO L82 PathProgramCache]: Analyzing trace with hash 66603127, now seen corresponding path program 1 times [2020-10-15 04:36:15,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:36:15,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955539481] [2020-10-15 04:36:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:36:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:15,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:15,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:16,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:16,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 04:36:16,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:36:16,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 744 [2020-10-15 04:36:16,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:16,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:16,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 04:36:16,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 04:36:16,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 04:36:16,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:36:16,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:36:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:16,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:16,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:16,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:36:16,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:36:16,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 04:36:16,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:16,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:16,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:36:16,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:36:16,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:36:16,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:36:16,264 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 04:36:16,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955539481] [2020-10-15 04:36:16,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:36:16,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:36:16,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780989765] [2020-10-15 04:36:16,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:36:16,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:36:16,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:36:16,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:36:16,267 INFO L87 Difference]: Start difference. First operand 635 states and 964 transitions. Second operand 5 states. [2020-10-15 04:36:17,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:36:17,153 INFO L93 Difference]: Finished difference Result 1341 states and 2035 transitions. [2020-10-15 04:36:17,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:36:17,154 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-15 04:36:17,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:36:17,158 INFO L225 Difference]: With dead ends: 1341 [2020-10-15 04:36:17,158 INFO L226 Difference]: Without dead ends: 719 [2020-10-15 04:36:17,160 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 04:36:17,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-10-15 04:36:17,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 643. [2020-10-15 04:36:17,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-10-15 04:36:17,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 977 transitions. [2020-10-15 04:36:17,181 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 977 transitions. Word has length 104 [2020-10-15 04:36:17,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:36:17,182 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 977 transitions. [2020-10-15 04:36:17,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:36:17,183 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 977 transitions. [2020-10-15 04:36:17,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-15 04:36:17,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:36:17,190 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 04:36:17,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 04:36:17,190 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:36:17,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:36:17,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1176276572, now seen corresponding path program 1 times [2020-10-15 04:36:17,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:36:17,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285001062] [2020-10-15 04:36:17,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:36:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:17,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:17,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:18,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:18,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 04:36:18,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:36:18,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 794 [2020-10-15 04:36:18,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:18,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:18,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 04:36:18,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 04:36:18,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 04:36:18,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:36:18,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:36:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:36:18,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:36:18,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:36:18,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:36:18,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:36:18,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 04:36:18,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:36:18,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:36:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:36:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:36:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:36:18,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:36:18,094 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 04:36:18,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285001062] [2020-10-15 04:36:18,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:36:18,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:36:18,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101774378] [2020-10-15 04:36:18,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:36:18,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:36:18,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:36:18,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:36:18,098 INFO L87 Difference]: Start difference. First operand 643 states and 977 transitions. Second operand 5 states. [2020-10-15 04:36:18,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:36:18,846 INFO L93 Difference]: Finished difference Result 1336 states and 2028 transitions. [2020-10-15 04:36:18,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:36:18,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-10-15 04:36:18,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:36:18,851 INFO L225 Difference]: With dead ends: 1336 [2020-10-15 04:36:18,851 INFO L226 Difference]: Without dead ends: 714 [2020-10-15 04:36:18,854 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 04:36:18,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-10-15 04:36:18,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 644. [2020-10-15 04:36:18,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-15 04:36:18,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 978 transitions. [2020-10-15 04:36:18,881 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 978 transitions. Word has length 105 [2020-10-15 04:36:18,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:36:18,881 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 978 transitions. [2020-10-15 04:36:18,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:36:18,881 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 978 transitions. [2020-10-15 04:36:18,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-15 04:36:18,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:36:18,885 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 04:36:18,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 04:36:18,885 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:36:18,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:36:18,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1055455695, now seen corresponding path program 1 times [2020-10-15 04:36:18,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:36:18,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598281383] [2020-10-15 04:36:18,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:36:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 04:36:19,077 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 04:36:19,078 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 04:36:19,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 04:36:19,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:36:19 BoogieIcfgContainer [2020-10-15 04:36:19,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 04:36:19,149 INFO L168 Benchmark]: Toolchain (without parser) took 25524.68 ms. Allocated memory was 146.3 MB in the beginning and 617.6 MB in the end (delta: 471.3 MB). Free memory was 100.2 MB in the beginning and 86.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 485.3 MB. Max. memory is 7.1 GB. [2020-10-15 04:36:19,150 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-15 04:36:19,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 893.53 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 163.6 MB in the end (delta: -63.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2020-10-15 04:36:19,159 INFO L168 Benchmark]: Boogie Preprocessor took 243.87 ms. Allocated memory is still 203.4 MB. Free memory was 163.6 MB in the beginning and 156.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. [2020-10-15 04:36:19,162 INFO L168 Benchmark]: RCFGBuilder took 1219.10 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 156.6 MB in the beginning and 181.3 MB in the end (delta: -24.7 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. [2020-10-15 04:36:19,167 INFO L168 Benchmark]: TraceAbstraction took 23163.02 ms. Allocated memory was 237.5 MB in the beginning and 617.6 MB in the end (delta: 380.1 MB). Free memory was 181.3 MB in the beginning and 86.2 MB in the end (delta: 95.1 MB). Peak memory consumption was 475.2 MB. Max. memory is 7.1 GB. [2020-10-15 04:36:19,171 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 893.53 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 163.6 MB in the end (delta: -63.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 243.87 ms. Allocated memory is still 203.4 MB. Free memory was 163.6 MB in the beginning and 156.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1219.10 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 156.6 MB in the beginning and 181.3 MB in the end (delta: -24.7 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23163.02 ms. Allocated memory was 237.5 MB in the beginning and 617.6 MB in the end (delta: 380.1 MB). Free memory was 181.3 MB in the beginning and 86.2 MB in the end (delta: 95.1 MB). Peak memory consumption was 475.2 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: 23.0s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 4.9s, 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, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 503 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 16.9s 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...