/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 SingleStatement --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=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:48:07,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:48:07,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:48:07,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:48:07,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:48:07,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:48:07,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:48:07,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:48:07,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:48:07,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:48:07,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:48:07,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:48:07,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:48:07,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:48:07,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:48:07,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:48:07,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:48:07,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:48:07,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:48:07,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:48:07,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:48:07,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:48:07,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:48:07,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:48:07,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:48:07,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:48:07,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:48:07,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:48:07,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:48:07,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:48:07,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:48:07,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:48:07,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:48:07,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:48:07,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:48:07,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:48:07,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:48:07,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:48:07,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:48:07,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:48:07,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:48:07,651 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 [2020-09-25 07:48:07,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:48:07,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:48:07,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:48:07,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:48:07,699 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:48:07,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:48:07,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:48:07,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:48:07,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:48:07,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:48:07,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:48:07,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:48:07,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:48:07,702 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:48:07,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:48:07,702 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:48:07,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:48:07,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:48:07,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:48:07,703 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:48:07,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:48:07,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:48:07,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:48:07,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:48:07,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:48:07,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:48:07,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:48:07,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:48:07,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:48:07,705 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 -> SingleStatement 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=0.8;log-additional-information=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=0.8;log-additional-information=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=0.8;log-additional-information=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=0.8;log-additional-information=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=0.8;log-additional-information=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=0.8;log-additional-information=true; [2020-09-25 07:48:08,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:48:08,222 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:48:08,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:48:08,230 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:48:08,230 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:48:08,231 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 07:48:08,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0df1d867/b66057626b644e7ca03f9f208d9f4365/FLAGec29e5299 [2020-09-25 07:48:08,827 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:48:08,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 07:48:08,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0df1d867/b66057626b644e7ca03f9f208d9f4365/FLAGec29e5299 [2020-09-25 07:48:09,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0df1d867/b66057626b644e7ca03f9f208d9f4365 [2020-09-25 07:48:09,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:48:09,164 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:48:09,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:48:09,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:48:09,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:48:09,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:48:09" (1/1) ... [2020-09-25 07:48:09,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a765448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:09, skipping insertion in model container [2020-09-25 07:48:09,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:48:09" (1/1) ... [2020-09-25 07:48:09,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:48:09,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:48:09,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:48:09,625 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:48:09,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:48:09,829 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:48:09,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:09 WrapperNode [2020-09-25 07:48:09,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:48:09,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:48:09,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:48:09,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:48:09,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:09" (1/1) ... [2020-09-25 07:48:09,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:09" (1/1) ... [2020-09-25 07:48:09,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:09" (1/1) ... [2020-09-25 07:48:09,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:09" (1/1) ... [2020-09-25 07:48:09,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:09" (1/1) ... [2020-09-25 07:48:09,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:09" (1/1) ... [2020-09-25 07:48:09,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:09" (1/1) ... [2020-09-25 07:48:09,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:48:09,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:48:09,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:48:09,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:48:09,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:09" (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 [2020-09-25 07:48:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:48:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:48:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 07:48:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:48:09,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:48:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 07:48:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:48:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 07:48:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 07:48:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:48:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:48:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:48:10,258 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:48:10,930 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 07:48:10,930 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 07:48:10,947 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:48:10,948 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 07:48:10,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:48:10 BoogieIcfgContainer [2020-09-25 07:48:10,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:48:10,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:48:10,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:48:10,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:48:10,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:48:09" (1/3) ... [2020-09-25 07:48:10,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300959c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:48:10, skipping insertion in model container [2020-09-25 07:48:10,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:09" (2/3) ... [2020-09-25 07:48:10,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300959c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:48:10, skipping insertion in model container [2020-09-25 07:48:10,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:48:10" (3/3) ... [2020-09-25 07:48:10,966 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_14.cil.c [2020-09-25 07:48:10,978 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:48:10,990 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:48:11,013 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:48:11,046 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:48:11,046 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:48:11,046 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:48:11,046 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:48:11,046 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:48:11,047 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:48:11,047 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:48:11,047 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:48:11,077 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-25 07:48:11,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 07:48:11,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:11,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:11,097 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:11,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:11,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1268045474, now seen corresponding path program 1 times [2020-09-25 07:48:11,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:11,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755930706] [2020-09-25 07:48:11,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:11,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:12,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:12,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:12,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 07:48:12,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:12,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1442 [2020-09-25 07:48:12,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:12,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:48:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 07:48:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:48:12,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:48:12,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:12,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:12,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:12,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:12,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:12,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:12,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:12,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:12,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:12,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:12,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:12,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:13,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:13,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755930706] [2020-09-25 07:48:13,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:13,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:48:13,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704396959] [2020-09-25 07:48:13,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:48:13,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:13,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:48:13,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:48:13,052 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 4 states. [2020-09-25 07:48:13,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:13,558 INFO L93 Difference]: Finished difference Result 756 states and 995 transitions. [2020-09-25 07:48:13,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:48:13,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2020-09-25 07:48:13,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:13,601 INFO L225 Difference]: With dead ends: 756 [2020-09-25 07:48:13,602 INFO L226 Difference]: Without dead ends: 425 [2020-09-25 07:48:13,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:48:13,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-09-25 07:48:13,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 414. [2020-09-25 07:48:13,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2020-09-25 07:48:13,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 500 transitions. [2020-09-25 07:48:13,704 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 500 transitions. Word has length 158 [2020-09-25 07:48:13,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:13,705 INFO L479 AbstractCegarLoop]: Abstraction has 414 states and 500 transitions. [2020-09-25 07:48:13,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:48:13,705 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 500 transitions. [2020-09-25 07:48:13,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 07:48:13,709 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:13,710 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:13,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:48:13,710 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:13,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:13,711 INFO L82 PathProgramCache]: Analyzing trace with hash -948298101, now seen corresponding path program 1 times [2020-09-25 07:48:13,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:13,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1479496591] [2020-09-25 07:48:13,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:13,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:14,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-09-25 07:48:14,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:14,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 906 [2020-09-25 07:48:14,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:14,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:14,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:48:14,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 07:48:14,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:48:14,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:14,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:14,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:14,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:14,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:14,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:14,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:14,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:14,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:14,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:14,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:14,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1479496591] [2020-09-25 07:48:14,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:14,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:48:14,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216174105] [2020-09-25 07:48:14,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:48:14,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:14,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:48:14,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:48:14,767 INFO L87 Difference]: Start difference. First operand 414 states and 500 transitions. Second operand 4 states. [2020-09-25 07:48:15,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:15,138 INFO L93 Difference]: Finished difference Result 490 states and 595 transitions. [2020-09-25 07:48:15,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:48:15,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 07:48:15,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:15,148 INFO L225 Difference]: With dead ends: 490 [2020-09-25 07:48:15,149 INFO L226 Difference]: Without dead ends: 488 [2020-09-25 07:48:15,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:48:15,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-09-25 07:48:15,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 452. [2020-09-25 07:48:15,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-09-25 07:48:15,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 546 transitions. [2020-09-25 07:48:15,177 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 546 transitions. Word has length 163 [2020-09-25 07:48:15,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:15,178 INFO L479 AbstractCegarLoop]: Abstraction has 452 states and 546 transitions. [2020-09-25 07:48:15,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:48:15,179 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 546 transitions. [2020-09-25 07:48:15,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-25 07:48:15,182 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:15,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:15,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:48:15,182 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:15,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:15,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1511382065, now seen corresponding path program 1 times [2020-09-25 07:48:15,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:15,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717453819] [2020-09-25 07:48:15,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:15,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:15,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:15,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:15,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:15,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:15,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:17,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:17,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:48:17,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:48:17,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1789 [2020-09-25 07:48:17,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:17,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:48:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 07:48:17,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:48:17,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:17,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:17,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:17,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:17,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:17,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:17,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:17,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:17,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:17,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:17,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:17,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:17,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:17,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:17,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717453819] [2020-09-25 07:48:17,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:17,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:48:17,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642554886] [2020-09-25 07:48:17,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:48:17,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:17,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:48:17,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:48:17,092 INFO L87 Difference]: Start difference. First operand 452 states and 546 transitions. Second operand 4 states. [2020-09-25 07:48:17,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:17,323 INFO L93 Difference]: Finished difference Result 487 states and 593 transitions. [2020-09-25 07:48:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:48:17,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2020-09-25 07:48:17,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:17,328 INFO L225 Difference]: With dead ends: 487 [2020-09-25 07:48:17,328 INFO L226 Difference]: Without dead ends: 485 [2020-09-25 07:48:17,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:48:17,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-25 07:48:17,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 428. [2020-09-25 07:48:17,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-09-25 07:48:17,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 519 transitions. [2020-09-25 07:48:17,353 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 519 transitions. Word has length 164 [2020-09-25 07:48:17,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:17,355 INFO L479 AbstractCegarLoop]: Abstraction has 428 states and 519 transitions. [2020-09-25 07:48:17,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:48:17,355 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 519 transitions. [2020-09-25 07:48:17,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-25 07:48:17,359 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:17,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:17,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:48:17,360 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:17,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:17,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1830665339, now seen corresponding path program 1 times [2020-09-25 07:48:17,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:17,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620845991] [2020-09-25 07:48:17,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:17,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:17,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:17,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:18,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:48:18,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:18,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 923 [2020-09-25 07:48:18,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:18,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:18,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:18,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 07:48:18,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:48:18,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:18,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:18,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:18,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:18,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:18,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:18,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:18,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:18,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:18,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:18,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:18,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:48:18,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:18,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620845991] [2020-09-25 07:48:18,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:18,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:18,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104217567] [2020-09-25 07:48:18,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:18,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:18,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:18,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:18,393 INFO L87 Difference]: Start difference. First operand 428 states and 519 transitions. Second operand 3 states. [2020-09-25 07:48:18,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:18,431 INFO L93 Difference]: Finished difference Result 990 states and 1248 transitions. [2020-09-25 07:48:18,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:18,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-09-25 07:48:18,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:18,436 INFO L225 Difference]: With dead ends: 990 [2020-09-25 07:48:18,436 INFO L226 Difference]: Without dead ends: 705 [2020-09-25 07:48:18,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:18,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2020-09-25 07:48:18,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 692. [2020-09-25 07:48:18,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-09-25 07:48:18,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 859 transitions. [2020-09-25 07:48:18,464 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 859 transitions. Word has length 164 [2020-09-25 07:48:18,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:18,465 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 859 transitions. [2020-09-25 07:48:18,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:18,465 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 859 transitions. [2020-09-25 07:48:18,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 07:48:18,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:18,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:18,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:48:18,469 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:18,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:18,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1143844992, now seen corresponding path program 1 times [2020-09-25 07:48:18,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:18,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331590770] [2020-09-25 07:48:18,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:18,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:48:19,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:19,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 858 [2020-09-25 07:48:19,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:19,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-09-25 07:48:19,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:48:19,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:19,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:19,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:19,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:19,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:19,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:19,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:19,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:19,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:19,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:19,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331590770] [2020-09-25 07:48:19,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:19,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:19,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577126957] [2020-09-25 07:48:19,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:19,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:19,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:19,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:19,440 INFO L87 Difference]: Start difference. First operand 692 states and 859 transitions. Second operand 3 states. [2020-09-25 07:48:19,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:19,483 INFO L93 Difference]: Finished difference Result 1786 states and 2278 transitions. [2020-09-25 07:48:19,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:19,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-09-25 07:48:19,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:19,490 INFO L225 Difference]: With dead ends: 1786 [2020-09-25 07:48:19,490 INFO L226 Difference]: Without dead ends: 1238 [2020-09-25 07:48:19,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2020-09-25 07:48:19,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 960. [2020-09-25 07:48:19,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 960 states. [2020-09-25 07:48:19,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1207 transitions. [2020-09-25 07:48:19,526 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1207 transitions. Word has length 165 [2020-09-25 07:48:19,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:19,527 INFO L479 AbstractCegarLoop]: Abstraction has 960 states and 1207 transitions. [2020-09-25 07:48:19,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:19,527 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1207 transitions. [2020-09-25 07:48:19,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 07:48:19,532 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:19,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:19,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:48:19,533 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:19,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:19,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1205884606, now seen corresponding path program 1 times [2020-09-25 07:48:19,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:19,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108041316] [2020-09-25 07:48:19,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:19,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:20,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:20,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:20,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:48:20,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:48:20,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-09-25 07:48:20,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:20,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 07:48:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 07:48:20,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:20,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:20,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:20,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:20,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:20,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:20,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:20,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:20,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:20,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:20,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:20,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:20,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:20,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108041316] [2020-09-25 07:48:20,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:20,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:48:20,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330738353] [2020-09-25 07:48:20,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:48:20,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:20,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:48:20,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:48:20,192 INFO L87 Difference]: Start difference. First operand 960 states and 1207 transitions. Second operand 6 states. [2020-09-25 07:48:20,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:20,435 INFO L93 Difference]: Finished difference Result 1879 states and 2419 transitions. [2020-09-25 07:48:20,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:48:20,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-09-25 07:48:20,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:20,441 INFO L225 Difference]: With dead ends: 1879 [2020-09-25 07:48:20,442 INFO L226 Difference]: Without dead ends: 1064 [2020-09-25 07:48:20,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:48:20,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-09-25 07:48:20,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1031. [2020-09-25 07:48:20,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-09-25 07:48:20,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1296 transitions. [2020-09-25 07:48:20,481 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1296 transitions. Word has length 165 [2020-09-25 07:48:20,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:20,481 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1296 transitions. [2020-09-25 07:48:20,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:48:20,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1296 transitions. [2020-09-25 07:48:20,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 07:48:20,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:20,487 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:20,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:48:20,488 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:20,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:20,488 INFO L82 PathProgramCache]: Analyzing trace with hash -702505573, now seen corresponding path program 1 times [2020-09-25 07:48:20,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:20,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728597177] [2020-09-25 07:48:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:20,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:20,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:20,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:20,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:21,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 07:48:21,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:48:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 822 [2020-09-25 07:48:21,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:21,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-09-25 07:48:21,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 07:48:21,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:21,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:21,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:21,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:21,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:21,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:21,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:21,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:21,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:21,414 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:21,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728597177] [2020-09-25 07:48:21,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:21,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:21,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577367260] [2020-09-25 07:48:21,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:21,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:21,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:21,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:21,418 INFO L87 Difference]: Start difference. First operand 1031 states and 1296 transitions. Second operand 3 states. [2020-09-25 07:48:21,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:21,448 INFO L93 Difference]: Finished difference Result 1917 states and 2443 transitions. [2020-09-25 07:48:21,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:21,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-09-25 07:48:21,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:21,456 INFO L225 Difference]: With dead ends: 1917 [2020-09-25 07:48:21,456 INFO L226 Difference]: Without dead ends: 1031 [2020-09-25 07:48:21,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:21,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2020-09-25 07:48:21,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2020-09-25 07:48:21,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-09-25 07:48:21,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1286 transitions. [2020-09-25 07:48:21,493 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1286 transitions. Word has length 187 [2020-09-25 07:48:21,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:21,494 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1286 transitions. [2020-09-25 07:48:21,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:21,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1286 transitions. [2020-09-25 07:48:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 07:48:21,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:21,498 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:21,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:48:21,498 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:21,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:21,499 INFO L82 PathProgramCache]: Analyzing trace with hash -380144502, now seen corresponding path program 1 times [2020-09-25 07:48:21,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:21,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640026215] [2020-09-25 07:48:21,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:21,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:22,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:22,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 07:48:22,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:22,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 914 [2020-09-25 07:48:22,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:22,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:22,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:22,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-09-25 07:48:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:48:22,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:22,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:22,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:22,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:22,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:22,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:22,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:22,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:22,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:22,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:22,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:22,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:22,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:48:22,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640026215] [2020-09-25 07:48:22,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:22,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:22,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864455577] [2020-09-25 07:48:22,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:22,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:22,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:22,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:22,557 INFO L87 Difference]: Start difference. First operand 1031 states and 1286 transitions. Second operand 3 states. [2020-09-25 07:48:22,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:22,658 INFO L93 Difference]: Finished difference Result 1965 states and 2474 transitions. [2020-09-25 07:48:22,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:22,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-09-25 07:48:22,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:22,666 INFO L225 Difference]: With dead ends: 1965 [2020-09-25 07:48:22,667 INFO L226 Difference]: Without dead ends: 1079 [2020-09-25 07:48:22,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:22,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2020-09-25 07:48:22,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1079. [2020-09-25 07:48:22,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1079 states. [2020-09-25 07:48:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1334 transitions. [2020-09-25 07:48:22,721 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1334 transitions. Word has length 188 [2020-09-25 07:48:22,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:22,722 INFO L479 AbstractCegarLoop]: Abstraction has 1079 states and 1334 transitions. [2020-09-25 07:48:22,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:22,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1334 transitions. [2020-09-25 07:48:22,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 07:48:22,726 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:22,727 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:22,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:48:22,727 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:22,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:22,728 INFO L82 PathProgramCache]: Analyzing trace with hash -231672218, now seen corresponding path program 1 times [2020-09-25 07:48:22,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:22,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360650457] [2020-09-25 07:48:22,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:22,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:22,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:22,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:23,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:23,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 07:48:23,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:48:23,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-09-25 07:48:23,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:23,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:23,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:23,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-25 07:48:23,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:48:23,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:23,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:23,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:23,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:23,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:23,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:23,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:23,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:23,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:23,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:23,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360650457] [2020-09-25 07:48:23,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:23,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:23,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533473502] [2020-09-25 07:48:23,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:23,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:23,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:23,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:23,239 INFO L87 Difference]: Start difference. First operand 1079 states and 1334 transitions. Second operand 3 states. [2020-09-25 07:48:23,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:23,307 INFO L93 Difference]: Finished difference Result 1986 states and 2495 transitions. [2020-09-25 07:48:23,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:23,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-09-25 07:48:23,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:23,316 INFO L225 Difference]: With dead ends: 1986 [2020-09-25 07:48:23,316 INFO L226 Difference]: Without dead ends: 1100 [2020-09-25 07:48:23,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:23,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-09-25 07:48:23,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1097. [2020-09-25 07:48:23,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2020-09-25 07:48:23,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1345 transitions. [2020-09-25 07:48:23,372 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1345 transitions. Word has length 189 [2020-09-25 07:48:23,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:23,373 INFO L479 AbstractCegarLoop]: Abstraction has 1097 states and 1345 transitions. [2020-09-25 07:48:23,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:23,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1345 transitions. [2020-09-25 07:48:23,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 07:48:23,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:23,380 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:23,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:48:23,381 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:23,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:23,382 INFO L82 PathProgramCache]: Analyzing trace with hash 770500989, now seen corresponding path program 1 times [2020-09-25 07:48:23,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:23,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323931419] [2020-09-25 07:48:23,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:23,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:23,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:23,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:23,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:23,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:24,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:24,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:24,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 07:48:24,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:48:24,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1044 [2020-09-25 07:48:24,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:24,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:48:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-09-25 07:48:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 07:48:24,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:24,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:24,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:24,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:24,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:24,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:24,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:24,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:24,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:24,555 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:24,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323931419] [2020-09-25 07:48:24,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:24,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:48:24,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795881542] [2020-09-25 07:48:24,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:48:24,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:24,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:48:24,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:48:24,558 INFO L87 Difference]: Start difference. First operand 1097 states and 1345 transitions. Second operand 4 states. [2020-09-25 07:48:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:24,669 INFO L93 Difference]: Finished difference Result 3814 states and 4787 transitions. [2020-09-25 07:48:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:48:24,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2020-09-25 07:48:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:24,684 INFO L225 Difference]: With dead ends: 3814 [2020-09-25 07:48:24,684 INFO L226 Difference]: Without dead ends: 2910 [2020-09-25 07:48:24,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:48:24,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2020-09-25 07:48:24,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 2004. [2020-09-25 07:48:24,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2004 states. [2020-09-25 07:48:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 2478 transitions. [2020-09-25 07:48:24,788 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 2478 transitions. Word has length 193 [2020-09-25 07:48:24,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:24,789 INFO L479 AbstractCegarLoop]: Abstraction has 2004 states and 2478 transitions. [2020-09-25 07:48:24,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:48:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 2478 transitions. [2020-09-25 07:48:24,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 07:48:24,794 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:24,794 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:24,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 07:48:24,795 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:24,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:24,795 INFO L82 PathProgramCache]: Analyzing trace with hash -978931294, now seen corresponding path program 1 times [2020-09-25 07:48:24,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:24,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738496926] [2020-09-25 07:48:24,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:24,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:24,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:25,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:25,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:25,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:25,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:25,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 07:48:25,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:48:25,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-09-25 07:48:25,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:25,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:25,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:48:25,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-25 07:48:25,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:48:25,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:48:25,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:25,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:25,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:25,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:25,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:25,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:25,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:25,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:25,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:25,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:25,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:25,343 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:25,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738496926] [2020-09-25 07:48:25,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:25,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:48:25,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6754128] [2020-09-25 07:48:25,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:48:25,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:25,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:48:25,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:48:25,346 INFO L87 Difference]: Start difference. First operand 2004 states and 2478 transitions. Second operand 4 states. [2020-09-25 07:48:25,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:25,752 INFO L93 Difference]: Finished difference Result 4848 states and 6163 transitions. [2020-09-25 07:48:25,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:48:25,753 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2020-09-25 07:48:25,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:25,766 INFO L225 Difference]: With dead ends: 4848 [2020-09-25 07:48:25,767 INFO L226 Difference]: Without dead ends: 3035 [2020-09-25 07:48:25,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:48:25,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3035 states. [2020-09-25 07:48:25,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3035 to 2698. [2020-09-25 07:48:25,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2698 states. [2020-09-25 07:48:25,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3313 transitions. [2020-09-25 07:48:25,882 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3313 transitions. Word has length 193 [2020-09-25 07:48:25,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:25,882 INFO L479 AbstractCegarLoop]: Abstraction has 2698 states and 3313 transitions. [2020-09-25 07:48:25,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:48:25,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3313 transitions. [2020-09-25 07:48:25,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 07:48:25,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:25,889 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:25,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 07:48:25,889 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:25,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:25,889 INFO L82 PathProgramCache]: Analyzing trace with hash 61032682, now seen corresponding path program 1 times [2020-09-25 07:48:25,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:25,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373954335] [2020-09-25 07:48:25,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:25,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:26,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:26,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:26,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-25 07:48:26,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:26,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 07:48:26,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:26,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:48:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-25 07:48:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:48:26,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:26,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:26,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:26,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:26,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:26,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:26,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:26,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:26,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:26,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:26,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:26,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:26,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:48:26,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373954335] [2020-09-25 07:48:26,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:26,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:48:26,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213002812] [2020-09-25 07:48:26,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:48:26,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:26,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:48:26,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:48:26,251 INFO L87 Difference]: Start difference. First operand 2698 states and 3313 transitions. Second operand 4 states. [2020-09-25 07:48:26,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:26,612 INFO L93 Difference]: Finished difference Result 3175 states and 3881 transitions. [2020-09-25 07:48:26,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:48:26,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-09-25 07:48:26,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:26,630 INFO L225 Difference]: With dead ends: 3175 [2020-09-25 07:48:26,630 INFO L226 Difference]: Without dead ends: 3173 [2020-09-25 07:48:26,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:48:26,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2020-09-25 07:48:26,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 2682. [2020-09-25 07:48:26,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2682 states. [2020-09-25 07:48:26,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3297 transitions. [2020-09-25 07:48:26,811 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3297 transitions. Word has length 195 [2020-09-25 07:48:26,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:26,812 INFO L479 AbstractCegarLoop]: Abstraction has 2682 states and 3297 transitions. [2020-09-25 07:48:26,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:48:26,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3297 transitions. [2020-09-25 07:48:26,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 07:48:26,822 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:26,823 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:26,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 07:48:26,823 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:26,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:26,823 INFO L82 PathProgramCache]: Analyzing trace with hash -99230353, now seen corresponding path program 1 times [2020-09-25 07:48:26,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:26,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157184666] [2020-09-25 07:48:26,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:26,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:26,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:27,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:27,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:27,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:27,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:27,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 07:48:27,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:48:27,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-09-25 07:48:27,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:27,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:27,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:27,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 07:48:27,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:48:27,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:27,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:27,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:27,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:27,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:27,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:27,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:27,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:27,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:27,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:27,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:27,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:27,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:27,532 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:27,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157184666] [2020-09-25 07:48:27,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:27,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:27,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213671147] [2020-09-25 07:48:27,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:27,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:27,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:27,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:27,535 INFO L87 Difference]: Start difference. First operand 2682 states and 3297 transitions. Second operand 3 states. [2020-09-25 07:48:27,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:27,884 INFO L93 Difference]: Finished difference Result 5714 states and 7217 transitions. [2020-09-25 07:48:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:27,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-09-25 07:48:27,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:27,900 INFO L225 Difference]: With dead ends: 5714 [2020-09-25 07:48:27,900 INFO L226 Difference]: Without dead ends: 3098 [2020-09-25 07:48:27,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:27,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2020-09-25 07:48:28,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 2989. [2020-09-25 07:48:28,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2989 states. [2020-09-25 07:48:28,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 3681 transitions. [2020-09-25 07:48:28,034 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 3681 transitions. Word has length 199 [2020-09-25 07:48:28,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:28,035 INFO L479 AbstractCegarLoop]: Abstraction has 2989 states and 3681 transitions. [2020-09-25 07:48:28,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:28,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 3681 transitions. [2020-09-25 07:48:28,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 07:48:28,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:28,041 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:28,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 07:48:28,041 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:28,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:28,042 INFO L82 PathProgramCache]: Analyzing trace with hash -912264382, now seen corresponding path program 1 times [2020-09-25 07:48:28,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:28,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907828321] [2020-09-25 07:48:28,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:28,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:28,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:28,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-25 07:48:28,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:28,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 07:48:28,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:28,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:28,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:28,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 07:48:28,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 07:48:28,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:28,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:28,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:28,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:28,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:28,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:28,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:28,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:28,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:28,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:28,290 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:28,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907828321] [2020-09-25 07:48:28,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:28,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:28,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208042931] [2020-09-25 07:48:28,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:28,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:28,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:28,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:28,293 INFO L87 Difference]: Start difference. First operand 2989 states and 3681 transitions. Second operand 3 states. [2020-09-25 07:48:28,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:28,578 INFO L93 Difference]: Finished difference Result 8349 states and 10407 transitions. [2020-09-25 07:48:28,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:28,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-09-25 07:48:28,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:28,608 INFO L225 Difference]: With dead ends: 8349 [2020-09-25 07:48:28,609 INFO L226 Difference]: Without dead ends: 5609 [2020-09-25 07:48:28,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:28,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5609 states. [2020-09-25 07:48:28,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5609 to 5607. [2020-09-25 07:48:28,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5607 states. [2020-09-25 07:48:28,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5607 states to 5607 states and 6890 transitions. [2020-09-25 07:48:28,821 INFO L78 Accepts]: Start accepts. Automaton has 5607 states and 6890 transitions. Word has length 200 [2020-09-25 07:48:28,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:28,822 INFO L479 AbstractCegarLoop]: Abstraction has 5607 states and 6890 transitions. [2020-09-25 07:48:28,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:28,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5607 states and 6890 transitions. [2020-09-25 07:48:28,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 07:48:28,829 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:28,829 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:28,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 07:48:28,830 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:28,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:28,830 INFO L82 PathProgramCache]: Analyzing trace with hash -690870181, now seen corresponding path program 1 times [2020-09-25 07:48:28,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:28,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015657198] [2020-09-25 07:48:28,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:48:28,857 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:48:28,857 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:48:28,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 07:48:28,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:48:28 BoogieIcfgContainer [2020-09-25 07:48:28,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:48:28,900 INFO L168 Benchmark]: Toolchain (without parser) took 19738.60 ms. Allocated memory was 144.2 MB in the beginning and 500.2 MB in the end (delta: 356.0 MB). Free memory was 100.0 MB in the beginning and 345.5 MB in the end (delta: -245.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:28,901 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:48:28,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.57 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 99.4 MB in the beginning and 175.7 MB in the end (delta: -76.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:28,902 INFO L168 Benchmark]: Boogie Preprocessor took 75.16 ms. Allocated memory is still 200.8 MB. Free memory was 175.0 MB in the beginning and 172.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:28,903 INFO L168 Benchmark]: RCFGBuilder took 1048.16 ms. Allocated memory is still 200.8 MB. Free memory was 172.9 MB in the beginning and 101.7 MB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:28,904 INFO L168 Benchmark]: TraceAbstraction took 17938.71 ms. Allocated memory was 200.8 MB in the beginning and 500.2 MB in the end (delta: 299.4 MB). Free memory was 101.0 MB in the beginning and 345.5 MB in the end (delta: -244.6 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:28,906 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 144.2 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 664.57 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 99.4 MB in the beginning and 175.7 MB in the end (delta: -76.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 75.16 ms. Allocated memory is still 200.8 MB. Free memory was 175.0 MB in the beginning and 172.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1048.16 ms. Allocated memory is still 200.8 MB. Free memory was 172.9 MB in the beginning and 101.7 MB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17938.71 ms. Allocated memory was 200.8 MB in the beginning and 500.2 MB in the end (delta: 299.4 MB). Free memory was 101.0 MB in the beginning and 345.5 MB in the end (delta: -244.6 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 640]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L645] int s ; [L646] int tmp ; [L650] s = 8464 [L651] CALL ssl3_accept(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L72] s__s3__tmp__reuse_message = 0 [L73] s__state = initial_state [L74] blastFlag = 0 [L75] tmp = __VERIFIER_nondet_int() [L76] Time = tmp [L77] cb = 0 [L78] ret = -1 [L79] skip = 0 [L80] got_new_session = 0 [L81] COND FALSE !(s__info_callback != 0) [L84] COND FALSE !(s__ctx__info_callback != 0) [L88] s__in_handshake ++ [L89] COND TRUE tmp___1 + 12288 [L90] COND TRUE tmp___2 + 16384 [L94] COND FALSE !(s__cert == 0) [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND TRUE s__state == 8464 [L271] s__shutdown = 0 [L272] ret = __VERIFIER_nondet_int() [L273] COND TRUE blastFlag == 0 [L274] blastFlag = 1 [L276] COND FALSE !(ret <= 0) [L279] got_new_session = 1 [L280] s__state = 8496 [L281] s__init_num = 0 [L602] COND TRUE ! s__s3__tmp__reuse_message [L603] COND TRUE ! skip [L604] COND TRUE tmp___1 != -12288 [L605] COND TRUE s__state != 8656 [L606] COND TRUE tmp___2 != -16384 [L607] COND FALSE !(state == 8496) [L614] COND FALSE !(\read(s__debug)) [L620] COND FALSE !(cb != 0) [L629] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND FALSE !(s__state == 8464) [L128] COND FALSE !(s__state == 8465) [L131] COND FALSE !(s__state == 8466) [L134] COND TRUE s__state == 8496 [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 1 [L287] blastFlag = 2 [L289] COND FALSE !(ret <= 0) [L292] COND FALSE !(\read(s__hit)) [L295] s__state = 8512 [L297] s__init_num = 0 [L602] COND TRUE ! s__s3__tmp__reuse_message [L603] COND TRUE ! skip [L604] COND TRUE tmp___1 != -12288 [L605] COND TRUE s__state != 8656 [L606] COND TRUE tmp___2 != -16384 [L607] COND TRUE state == 8496 [L640] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 426 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.8s, OverallIterations: 15, TraceHistogramMax: 2, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7133 SDtfs, 4905 SDslu, 7616 SDs, 0 SdLazy, 1315 SolverSat, 163 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5607occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 2276 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 2724 NumberOfCodeBlocks, 2724 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2509 ConstructedInterpolants, 0 QuantifiedInterpolants, 678119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 107/107 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 proved your program to be incorrect! Received shutdown request...