/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh/s3_clnt.blast.04.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 10:00:11,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 10:00:11,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 10:00:11,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 10:00:11,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 10:00:11,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 10:00:11,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 10:00:11,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 10:00:11,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 10:00:11,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 10:00:11,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 10:00:11,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 10:00:11,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 10:00:11,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 10:00:11,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 10:00:11,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 10:00:11,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 10:00:11,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 10:00:11,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 10:00:11,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 10:00:11,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 10:00:11,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 10:00:11,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 10:00:11,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 10:00:11,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 10:00:11,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 10:00:11,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 10:00:11,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 10:00:11,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 10:00:11,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 10:00:11,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 10:00:11,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 10:00:11,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 10:00:11,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 10:00:11,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 10:00:11,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 10:00:11,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 10:00:11,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 10:00:11,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 10:00:11,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 10:00:11,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 10:00:11,124 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 10:00:11,176 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 10:00:11,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 10:00:11,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 10:00:11,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 10:00:11,182 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 10:00:11,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 10:00:11,183 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 10:00:11,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 10:00:11,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 10:00:11,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 10:00:11,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 10:00:11,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 10:00:11,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 10:00:11,185 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 10:00:11,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 10:00:11,185 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 10:00:11,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 10:00:11,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 10:00:11,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 10:00:11,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 10:00:11,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 10:00:11,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 10:00:11,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 10:00:11,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 10:00:11,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 10:00:11,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 10:00:11,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 10:00:11,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 10:00:11,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 10:00:11,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 10:00:11,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 10:00:11,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 10:00:11,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 10:00:11,539 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 10:00:11,539 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 10:00:11,540 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh/s3_clnt.blast.04.i.cil-1.c [2020-10-14 10:00:11,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ff996989/d2594f93a1fe4c7c94569ce1ed6c9fee/FLAG8f01a9451 [2020-10-14 10:00:12,227 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 10:00:12,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh/s3_clnt.blast.04.i.cil-1.c [2020-10-14 10:00:12,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ff996989/d2594f93a1fe4c7c94569ce1ed6c9fee/FLAG8f01a9451 [2020-10-14 10:00:12,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ff996989/d2594f93a1fe4c7c94569ce1ed6c9fee [2020-10-14 10:00:12,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 10:00:12,410 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 10:00:12,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 10:00:12,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 10:00:12,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 10:00:12,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:00:12" (1/1) ... [2020-10-14 10:00:12,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318ac3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:12, skipping insertion in model container [2020-10-14 10:00:12,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:00:12" (1/1) ... [2020-10-14 10:00:12,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 10:00:12,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 10:00:13,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 10:00:13,211 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 10:00:13,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 10:00:13,418 INFO L208 MainTranslator]: Completed translation [2020-10-14 10:00:13,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:13 WrapperNode [2020-10-14 10:00:13,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 10:00:13,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 10:00:13,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 10:00:13,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 10:00:13,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:13" (1/1) ... [2020-10-14 10:00:13,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:13" (1/1) ... [2020-10-14 10:00:13,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:13" (1/1) ... [2020-10-14 10:00:13,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:13" (1/1) ... [2020-10-14 10:00:13,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:13" (1/1) ... [2020-10-14 10:00:13,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:13" (1/1) ... [2020-10-14 10:00:13,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:13" (1/1) ... [2020-10-14 10:00:13,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 10:00:13,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 10:00:13,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 10:00:13,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 10:00:13,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 10:00:13,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 10:00:13,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 10:00:13,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2020-10-14 10:00:13,672 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2020-10-14 10:00:13,672 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 10:00:13,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-14 10:00:13,673 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2020-10-14 10:00:13,673 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 10:00:13,674 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-14 10:00:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 10:00:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 10:00:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 10:00:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 10:00:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-14 10:00:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 10:00:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 10:00:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2020-10-14 10:00:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2020-10-14 10:00:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-14 10:00:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2020-10-14 10:00:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-14 10:00:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 10:00:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 10:00:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 10:00:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 10:00:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 10:00:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 10:00:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 10:00:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 10:00:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 10:00:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 10:00:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 10:00:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 10:00:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-14 10:00:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 10:00:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-14 10:00:13,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 10:00:14,396 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 10:00:15,085 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-14 10:00:15,085 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-14 10:00:15,111 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 10:00:15,111 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 10:00:15,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:00:15 BoogieIcfgContainer [2020-10-14 10:00:15,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 10:00:15,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 10:00:15,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 10:00:15,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 10:00:15,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:00:12" (1/3) ... [2020-10-14 10:00:15,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df87a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:00:15, skipping insertion in model container [2020-10-14 10:00:15,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:13" (2/3) ... [2020-10-14 10:00:15,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df87a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:00:15, skipping insertion in model container [2020-10-14 10:00:15,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:00:15" (3/3) ... [2020-10-14 10:00:15,125 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-1.c [2020-10-14 10:00:15,137 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 10:00:15,145 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 10:00:15,157 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 10:00:15,183 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 10:00:15,183 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 10:00:15,183 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 10:00:15,183 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 10:00:15,183 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 10:00:15,183 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 10:00:15,184 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 10:00:15,184 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 10:00:15,206 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-10-14 10:00:15,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 10:00:15,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:15,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:00:15,216 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:15,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:15,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1671955434, now seen corresponding path program 1 times [2020-10-14 10:00:15,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:15,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476782889] [2020-10-14 10:00:15,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:15,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:15,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:16,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:16,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:16,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 10:00:16,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:00:16,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1274 [2020-10-14 10:00:16,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:16,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:00:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 10:00:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 10:00:16,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 10:00:16,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:00:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:16,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:16,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:16,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:00:16,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:00:16,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 10:00:16,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:16,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:16,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:00:16,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:00:16,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:00:16,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:16,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 10:00:16,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476782889] [2020-10-14 10:00:16,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:00:16,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 10:00:16,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300589445] [2020-10-14 10:00:16,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 10:00:16,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:00:16,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 10:00:16,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:16,884 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 4 states. [2020-10-14 10:00:17,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:00:17,599 INFO L93 Difference]: Finished difference Result 381 states and 638 transitions. [2020-10-14 10:00:17,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 10:00:17,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-14 10:00:17,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:00:17,616 INFO L225 Difference]: With dead ends: 381 [2020-10-14 10:00:17,617 INFO L226 Difference]: Without dead ends: 221 [2020-10-14 10:00:17,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:17,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-10-14 10:00:17,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2020-10-14 10:00:17,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-14 10:00:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 327 transitions. [2020-10-14 10:00:17,688 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 327 transitions. Word has length 30 [2020-10-14 10:00:17,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:00:17,689 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 327 transitions. [2020-10-14 10:00:17,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 10:00:17,689 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 327 transitions. [2020-10-14 10:00:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 10:00:17,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:17,693 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:00:17,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 10:00:17,694 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:17,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:17,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1986456738, now seen corresponding path program 1 times [2020-10-14 10:00:17,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:17,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710420538] [2020-10-14 10:00:17,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:17,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:17,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:17,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:18,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:18,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:21,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:21,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 10:00:21,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 10:00:21,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3345 [2020-10-14 10:00:21,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:21,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:21,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:00:21,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 10:00:21,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:00:21,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:21,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:00:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:21,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:21,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:21,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:00:21,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:00:21,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 10:00:21,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:21,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:21,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:00:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:00:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:00:21,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 10:00:21,212 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 10:00:21,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710420538] [2020-10-14 10:00:21,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:00:21,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 10:00:21,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856979118] [2020-10-14 10:00:21,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 10:00:21,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:00:21,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 10:00:21,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:21,227 INFO L87 Difference]: Start difference. First operand 221 states and 327 transitions. Second operand 4 states. [2020-10-14 10:00:21,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:00:21,741 INFO L93 Difference]: Finished difference Result 429 states and 642 transitions. [2020-10-14 10:00:21,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 10:00:21,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-10-14 10:00:21,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:00:21,746 INFO L225 Difference]: With dead ends: 429 [2020-10-14 10:00:21,746 INFO L226 Difference]: Without dead ends: 324 [2020-10-14 10:00:21,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:21,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-14 10:00:21,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2020-10-14 10:00:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-14 10:00:21,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 480 transitions. [2020-10-14 10:00:21,774 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 480 transitions. Word has length 45 [2020-10-14 10:00:21,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:00:21,774 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 480 transitions. [2020-10-14 10:00:21,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 10:00:21,775 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 480 transitions. [2020-10-14 10:00:21,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 10:00:21,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:21,779 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:00:21,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 10:00:21,779 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:21,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:21,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1230762276, now seen corresponding path program 1 times [2020-10-14 10:00:21,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:21,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331516417] [2020-10-14 10:00:21,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:21,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:21,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:22,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:22,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:24,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:24,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 10:00:24,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 10:00:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2505 [2020-10-14 10:00:24,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:24,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:00:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-14 10:00:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 10:00:24,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:24,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:00:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:24,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:24,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:24,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:00:24,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:00:24,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:00:24,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:24,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:00:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:00:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:00:24,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 10:00:24,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331516417] [2020-10-14 10:00:24,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:00:24,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 10:00:24,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848618516] [2020-10-14 10:00:24,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 10:00:24,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:00:24,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 10:00:24,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:24,460 INFO L87 Difference]: Start difference. First operand 324 states and 480 transitions. Second operand 4 states. [2020-10-14 10:00:25,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:00:25,005 INFO L93 Difference]: Finished difference Result 635 states and 948 transitions. [2020-10-14 10:00:25,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 10:00:25,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-14 10:00:25,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:00:25,009 INFO L225 Difference]: With dead ends: 635 [2020-10-14 10:00:25,010 INFO L226 Difference]: Without dead ends: 427 [2020-10-14 10:00:25,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:25,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-14 10:00:25,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2020-10-14 10:00:25,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-10-14 10:00:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 634 transitions. [2020-10-14 10:00:25,055 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 634 transitions. Word has length 63 [2020-10-14 10:00:25,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:00:25,058 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 634 transitions. [2020-10-14 10:00:25,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 10:00:25,058 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 634 transitions. [2020-10-14 10:00:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 10:00:25,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:25,071 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:00:25,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 10:00:25,072 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:25,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:25,072 INFO L82 PathProgramCache]: Analyzing trace with hash -647149250, now seen corresponding path program 1 times [2020-10-14 10:00:25,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:25,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314325263] [2020-10-14 10:00:25,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:25,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:25,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:25,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:26,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:26,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:26,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:30,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:30,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 10:00:30,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 10:00:30,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 10:00:30,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:30,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:30,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:00:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-14 10:00:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 10:00:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:30,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:00:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:30,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:30,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:30,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:00:30,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:00:30,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:00:30,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:30,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:30,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:00:30,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:00:30,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:00:30,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:30,285 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-14 10:00:30,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314325263] [2020-10-14 10:00:30,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:00:30,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 10:00:30,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120120659] [2020-10-14 10:00:30,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 10:00:30,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:00:30,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 10:00:30,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:30,287 INFO L87 Difference]: Start difference. First operand 427 states and 634 transitions. Second operand 4 states. [2020-10-14 10:00:30,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:00:30,740 INFO L93 Difference]: Finished difference Result 841 states and 1256 transitions. [2020-10-14 10:00:30,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 10:00:30,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-10-14 10:00:30,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:00:30,745 INFO L225 Difference]: With dead ends: 841 [2020-10-14 10:00:30,745 INFO L226 Difference]: Without dead ends: 530 [2020-10-14 10:00:30,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:30,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-14 10:00:30,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2020-10-14 10:00:30,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-10-14 10:00:30,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 789 transitions. [2020-10-14 10:00:30,765 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 789 transitions. Word has length 83 [2020-10-14 10:00:30,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:00:30,767 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 789 transitions. [2020-10-14 10:00:30,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 10:00:30,767 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 789 transitions. [2020-10-14 10:00:30,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 10:00:30,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:30,771 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:00:30,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 10:00:30,771 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:30,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:30,771 INFO L82 PathProgramCache]: Analyzing trace with hash -982783041, now seen corresponding path program 1 times [2020-10-14 10:00:30,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:30,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427536538] [2020-10-14 10:00:30,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:30,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:30,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:31,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:33,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:33,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 10:00:33,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:00:33,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2255 [2020-10-14 10:00:33,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:33,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:33,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:00:33,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-14 10:00:33,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 10:00:33,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:33,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:00:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:33,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:33,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:33,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:00:33,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:00:33,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:00:33,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:33,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:33,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:00:33,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:00:33,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:00:33,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:33,209 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 10:00:33,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427536538] [2020-10-14 10:00:33,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:00:33,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 10:00:33,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97244842] [2020-10-14 10:00:33,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 10:00:33,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:00:33,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 10:00:33,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 10:00:33,214 INFO L87 Difference]: Start difference. First operand 530 states and 789 transitions. Second operand 5 states. [2020-10-14 10:00:34,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:00:34,533 INFO L93 Difference]: Finished difference Result 1509 states and 2258 transitions. [2020-10-14 10:00:34,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 10:00:34,534 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-14 10:00:34,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:00:34,543 INFO L225 Difference]: With dead ends: 1509 [2020-10-14 10:00:34,543 INFO L226 Difference]: Without dead ends: 992 [2020-10-14 10:00:34,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 10:00:34,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2020-10-14 10:00:34,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 635. [2020-10-14 10:00:34,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-10-14 10:00:34,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 964 transitions. [2020-10-14 10:00:34,612 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 964 transitions. Word has length 104 [2020-10-14 10:00:34,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:00:34,612 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 964 transitions. [2020-10-14 10:00:34,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 10:00:34,613 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 964 transitions. [2020-10-14 10:00:34,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 10:00:34,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:34,621 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:00:34,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 10:00:34,622 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:34,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:34,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1626004417, now seen corresponding path program 1 times [2020-10-14 10:00:34,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:34,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260362539] [2020-10-14 10:00:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:34,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:34,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:35,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:35,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 10:00:35,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:00:35,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 888 [2020-10-14 10:00:35,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:35,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:35,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:00:35,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 10:00:35,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 10:00:35,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:35,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:00:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:35,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:35,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:35,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:00:35,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:00:35,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 10:00:35,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:35,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:00:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:00:35,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:00:35,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:35,696 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-14 10:00:35,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260362539] [2020-10-14 10:00:35,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:00:35,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 10:00:35,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558847665] [2020-10-14 10:00:35,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 10:00:35,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:00:35,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 10:00:35,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 10:00:35,702 INFO L87 Difference]: Start difference. First operand 635 states and 964 transitions. Second operand 5 states. [2020-10-14 10:00:36,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:00:36,673 INFO L93 Difference]: Finished difference Result 1341 states and 2035 transitions. [2020-10-14 10:00:36,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 10:00:36,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-14 10:00:36,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:00:36,678 INFO L225 Difference]: With dead ends: 1341 [2020-10-14 10:00:36,679 INFO L226 Difference]: Without dead ends: 719 [2020-10-14 10:00:36,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 10:00:36,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-10-14 10:00:36,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 643. [2020-10-14 10:00:36,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-10-14 10:00:36,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 977 transitions. [2020-10-14 10:00:36,707 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 977 transitions. Word has length 104 [2020-10-14 10:00:36,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:00:36,710 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 977 transitions. [2020-10-14 10:00:36,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 10:00:36,711 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 977 transitions. [2020-10-14 10:00:36,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 10:00:36,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:36,714 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:00:36,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 10:00:36,714 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:36,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:36,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1559289434, now seen corresponding path program 1 times [2020-10-14 10:00:36,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:36,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778026258] [2020-10-14 10:00:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:36,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:36,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:37,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:37,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 10:00:37,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 10:00:37,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 955 [2020-10-14 10:00:37,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:37,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 10:00:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 10:00:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 10:00:37,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:37,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:00:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:37,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:37,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:37,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:00:37,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:00:37,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 10:00:37,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:37,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:00:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:00:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:00:37,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:37,783 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-14 10:00:37,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778026258] [2020-10-14 10:00:37,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:00:37,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 10:00:37,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240050404] [2020-10-14 10:00:37,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 10:00:37,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:00:37,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 10:00:37,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 10:00:37,786 INFO L87 Difference]: Start difference. First operand 643 states and 977 transitions. Second operand 5 states. [2020-10-14 10:00:38,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:00:38,670 INFO L93 Difference]: Finished difference Result 1337 states and 2029 transitions. [2020-10-14 10:00:38,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 10:00:38,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-10-14 10:00:38,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:00:38,676 INFO L225 Difference]: With dead ends: 1337 [2020-10-14 10:00:38,676 INFO L226 Difference]: Without dead ends: 715 [2020-10-14 10:00:38,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 10:00:38,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2020-10-14 10:00:38,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 644. [2020-10-14 10:00:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-14 10:00:38,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 978 transitions. [2020-10-14 10:00:38,708 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 978 transitions. Word has length 105 [2020-10-14 10:00:38,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:00:38,708 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 978 transitions. [2020-10-14 10:00:38,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 10:00:38,709 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 978 transitions. [2020-10-14 10:00:38,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-14 10:00:38,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:38,712 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:00:38,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 10:00:38,713 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:38,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:38,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1680110311, now seen corresponding path program 1 times [2020-10-14 10:00:38,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:38,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098222285] [2020-10-14 10:00:38,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 10:00:38,904 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 10:00:38,904 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 10:00:38,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 10:00:38,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 10:00:38 BoogieIcfgContainer [2020-10-14 10:00:38,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 10:00:38,970 INFO L168 Benchmark]: Toolchain (without parser) took 26560.00 ms. Allocated memory was 146.8 MB in the beginning and 590.3 MB in the end (delta: 443.5 MB). Free memory was 101.4 MB in the beginning and 222.7 MB in the end (delta: -121.3 MB). Peak memory consumption was 322.2 MB. Max. memory is 7.1 GB. [2020-10-14 10:00:38,971 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 10:00:38,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1008.78 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.0 MB in the beginning and 165.0 MB in the end (delta: -64.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2020-10-14 10:00:38,975 INFO L168 Benchmark]: Boogie Preprocessor took 142.75 ms. Allocated memory is still 205.0 MB. Free memory was 165.0 MB in the beginning and 157.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. [2020-10-14 10:00:38,976 INFO L168 Benchmark]: RCFGBuilder took 1552.88 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 157.8 MB in the beginning and 181.9 MB in the end (delta: -24.1 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. [2020-10-14 10:00:38,979 INFO L168 Benchmark]: TraceAbstraction took 23849.72 ms. Allocated memory was 238.0 MB in the beginning and 590.3 MB in the end (delta: 352.3 MB). Free memory was 181.9 MB in the beginning and 222.7 MB in the end (delta: -40.8 MB). Peak memory consumption was 311.5 MB. Max. memory is 7.1 GB. [2020-10-14 10:00:38,988 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 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1008.78 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.0 MB in the beginning and 165.0 MB in the end (delta: -64.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 142.75 ms. Allocated memory is still 205.0 MB. Free memory was 165.0 MB in the beginning and 157.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1552.88 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 157.8 MB in the beginning and 181.9 MB in the end (delta: -24.1 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23849.72 ms. Allocated memory was 238.0 MB in the beginning and 590.3 MB in the end (delta: 352.3 MB). Free memory was 181.9 MB in the beginning and 222.7 MB in the end (delta: -40.8 MB). Peak memory consumption was 311.5 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: 23.7s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 5.5s, 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, 0.3s 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: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 504 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.0s 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...