/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=0.2 --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 04:21:58,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:21:58,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:21:58,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:21:58,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:21:58,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:21:58,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:21:58,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:21:58,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:21:58,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:21:58,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:21:58,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:21:58,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:21:58,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:21:58,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:21:58,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:21:58,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:21:58,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:21:58,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:21:58,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:21:58,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:21:58,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:21:58,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:21:58,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:21:58,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:21:58,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:21:58,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:21:58,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:21:58,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:21:58,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:21:58,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:21:58,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:21:58,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:21:58,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:21:58,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:21:58,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:21:58,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:21:58,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:21:58,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:21:58,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:21:58,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:21:58,882 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 04:21:58,928 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:21:58,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:21:58,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:21:58,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:21:58,931 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:21:58,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:21:58,932 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:21:58,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:21:58,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:21:58,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:21:58,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:21:58,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:21:58,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:21:58,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:21:58,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:21:58,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:21:58,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:21:58,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:21:58,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:21:58,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:21:58,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:21:58,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:21:58,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:21:58,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:21:58,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:21:58,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:21:58,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:21:58,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:21:58,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:21:58,937 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 04:21:59,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:21:59,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:21:59,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:21:59,442 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:21:59,442 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:21:59,443 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 04:21:59,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67c898400/2b2730a20ff94249b5f6ab6993231fc7/FLAG44585ead5 [2020-09-25 04:22:00,089 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:22:00,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 04:22:00,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67c898400/2b2730a20ff94249b5f6ab6993231fc7/FLAG44585ead5 [2020-09-25 04:22:00,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67c898400/2b2730a20ff94249b5f6ab6993231fc7 [2020-09-25 04:22:00,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:22:00,424 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:22:00,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:00,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:22:00,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:22:00,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:00" (1/1) ... [2020-09-25 04:22:00,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78523b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:00, skipping insertion in model container [2020-09-25 04:22:00,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:00" (1/1) ... [2020-09-25 04:22:00,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:22:00,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:22:00,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:00,848 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:22:01,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:01,044 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:22:01,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:01 WrapperNode [2020-09-25 04:22:01,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:01,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:22:01,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:22:01,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:22:01,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:01" (1/1) ... [2020-09-25 04:22:01,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:01" (1/1) ... [2020-09-25 04:22:01,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:01" (1/1) ... [2020-09-25 04:22:01,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:01" (1/1) ... [2020-09-25 04:22:01,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:01" (1/1) ... [2020-09-25 04:22:01,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:01" (1/1) ... [2020-09-25 04:22:01,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:01" (1/1) ... [2020-09-25 04:22:01,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:22:01,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:22:01,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:22:01,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:22:01,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:01" (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 04:22:01,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:22:01,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:22:01,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 04:22:01,200 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:22:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:22:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 04:22:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:22:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 04:22:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 04:22:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:22:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:22:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:22:01,427 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:22:02,112 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 04:22:02,112 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 04:22:02,129 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:22:02,130 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:22:02,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:02 BoogieIcfgContainer [2020-09-25 04:22:02,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:22:02,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:22:02,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:22:02,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:22:02,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:22:00" (1/3) ... [2020-09-25 04:22:02,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ae4e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:02, skipping insertion in model container [2020-09-25 04:22:02,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:01" (2/3) ... [2020-09-25 04:22:02,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ae4e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:02, skipping insertion in model container [2020-09-25 04:22:02,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:02" (3/3) ... [2020-09-25 04:22:02,149 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_14.cil.c [2020-09-25 04:22:02,160 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:22:02,172 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:22:02,195 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:22:02,228 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:22:02,229 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:22:02,229 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:22:02,229 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:22:02,229 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:22:02,229 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:22:02,229 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:22:02,229 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:22:02,261 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-25 04:22:02,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 04:22:02,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:02,281 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 04:22:02,281 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:02,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:02,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1268045474, now seen corresponding path program 1 times [2020-09-25 04:22:02,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:02,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643028284] [2020-09-25 04:22:02,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:02,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:03,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 04:22:03,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:03,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1353 [2020-09-25 04:22:03,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:03,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:03,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:03,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 04:22:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:22:03,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:22:04,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:04,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:04,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:04,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:04,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:04,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:04,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:04,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:04,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:04,084 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 04:22:04,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643028284] [2020-09-25 04:22:04,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:04,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:04,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867768300] [2020-09-25 04:22:04,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:04,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:04,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:04,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:04,117 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 3 states. [2020-09-25 04:22:04,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:04,224 INFO L93 Difference]: Finished difference Result 979 states and 1295 transitions. [2020-09-25 04:22:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:04,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-09-25 04:22:04,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:04,265 INFO L225 Difference]: With dead ends: 979 [2020-09-25 04:22:04,266 INFO L226 Difference]: Without dead ends: 635 [2020-09-25 04:22:04,281 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 04:22:04,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2020-09-25 04:22:04,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 633. [2020-09-25 04:22:04,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-09-25 04:22:04,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 782 transitions. [2020-09-25 04:22:04,385 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 782 transitions. Word has length 158 [2020-09-25 04:22:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:04,386 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 782 transitions. [2020-09-25 04:22:04,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 782 transitions. [2020-09-25 04:22:04,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 04:22:04,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:04,391 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] [2020-09-25 04:22:04,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:22:04,392 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:04,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:04,392 INFO L82 PathProgramCache]: Analyzing trace with hash 367087975, now seen corresponding path program 1 times [2020-09-25 04:22:04,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:04,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567435660] [2020-09-25 04:22:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:04,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:04,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:04,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:04,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:05,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-25 04:22:05,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:05,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1190 [2020-09-25 04:22:05,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:05,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:05,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-09-25 04:22:05,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:22:05,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:22:05,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:05,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:05,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:05,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:05,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:05,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:05,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:05,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:05,724 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 04:22:05,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567435660] [2020-09-25 04:22:05,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:05,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:05,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826428644] [2020-09-25 04:22:05,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:05,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:05,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:05,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:05,739 INFO L87 Difference]: Start difference. First operand 633 states and 782 transitions. Second operand 3 states. [2020-09-25 04:22:05,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:05,779 INFO L93 Difference]: Finished difference Result 1611 states and 2049 transitions. [2020-09-25 04:22:05,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:05,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-09-25 04:22:05,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:05,786 INFO L225 Difference]: With dead ends: 1611 [2020-09-25 04:22:05,786 INFO L226 Difference]: Without dead ends: 1122 [2020-09-25 04:22:05,789 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 04:22:05,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2020-09-25 04:22:05,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 878. [2020-09-25 04:22:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-09-25 04:22:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1100 transitions. [2020-09-25 04:22:05,822 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1100 transitions. Word has length 159 [2020-09-25 04:22:05,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:05,822 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1100 transitions. [2020-09-25 04:22:05,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:05,823 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1100 transitions. [2020-09-25 04:22:05,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 04:22:05,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:05,826 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] [2020-09-25 04:22:05,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:22:05,827 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:05,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:05,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1184736425, now seen corresponding path program 1 times [2020-09-25 04:22:05,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:05,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708486179] [2020-09-25 04:22:05,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:05,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:06,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-25 04:22:06,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:22:06,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 642 [2020-09-25 04:22:06,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:06,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:22:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-09-25 04:22:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:22:06,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:06,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:06,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:06,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:06,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:06,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:06,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:06,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:06,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:06,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:06,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:06,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:06,576 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 04:22:06,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708486179] [2020-09-25 04:22:06,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:06,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:22:06,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333193367] [2020-09-25 04:22:06,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:22:06,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:06,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:22:06,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:22:06,579 INFO L87 Difference]: Start difference. First operand 878 states and 1100 transitions. Second operand 4 states. [2020-09-25 04:22:06,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:06,859 INFO L93 Difference]: Finished difference Result 1066 states and 1337 transitions. [2020-09-25 04:22:06,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:22:06,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2020-09-25 04:22:06,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:06,865 INFO L225 Difference]: With dead ends: 1066 [2020-09-25 04:22:06,865 INFO L226 Difference]: Without dead ends: 1064 [2020-09-25 04:22:06,866 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 04:22:06,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-09-25 04:22:06,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 908. [2020-09-25 04:22:06,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2020-09-25 04:22:06,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1138 transitions. [2020-09-25 04:22:06,892 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1138 transitions. Word has length 159 [2020-09-25 04:22:06,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:06,892 INFO L479 AbstractCegarLoop]: Abstraction has 908 states and 1138 transitions. [2020-09-25 04:22:06,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:22:06,892 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1138 transitions. [2020-09-25 04:22:06,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 04:22:06,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:06,895 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 04:22:06,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:22:06,896 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:06,896 INFO L82 PathProgramCache]: Analyzing trace with hash -252964714, now seen corresponding path program 1 times [2020-09-25 04:22:06,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:06,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179452154] [2020-09-25 04:22:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:06,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:07,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:22:07,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:22:07,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1076 [2020-09-25 04:22:08,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:08,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:08,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:08,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-09-25 04:22:08,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:22:08,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:08,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:08,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:08,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:08,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:08,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:08,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:08,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:08,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:08,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:08,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:08,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:08,059 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 04:22:08,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179452154] [2020-09-25 04:22:08,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:08,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:08,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417404622] [2020-09-25 04:22:08,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:08,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:08,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:08,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:08,063 INFO L87 Difference]: Start difference. First operand 908 states and 1138 transitions. Second operand 3 states. [2020-09-25 04:22:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:08,090 INFO L93 Difference]: Finished difference Result 1591 states and 2039 transitions. [2020-09-25 04:22:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:08,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-09-25 04:22:08,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:08,094 INFO L225 Difference]: With dead ends: 1591 [2020-09-25 04:22:08,095 INFO L226 Difference]: Without dead ends: 809 [2020-09-25 04:22:08,096 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 04:22:08,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2020-09-25 04:22:08,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2020-09-25 04:22:08,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-09-25 04:22:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1012 transitions. [2020-09-25 04:22:08,116 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1012 transitions. Word has length 165 [2020-09-25 04:22:08,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:08,116 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 1012 transitions. [2020-09-25 04:22:08,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:08,117 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1012 transitions. [2020-09-25 04:22:08,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 04:22:08,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:08,119 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, 1, 1, 1, 1] [2020-09-25 04:22:08,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:22:08,120 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:08,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:08,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1580880327, now seen corresponding path program 1 times [2020-09-25 04:22:08,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:08,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574627935] [2020-09-25 04:22:08,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:08,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-25 04:22:09,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:22:09,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1529 [2020-09-25 04:22:09,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 04:22:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:22:09,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:09,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:09,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:09,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:09,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:09,732 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 04:22:09,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574627935] [2020-09-25 04:22:09,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:09,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:09,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131392436] [2020-09-25 04:22:09,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:09,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:09,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:09,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:09,735 INFO L87 Difference]: Start difference. First operand 809 states and 1012 transitions. Second operand 3 states. [2020-09-25 04:22:09,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:09,778 INFO L93 Difference]: Finished difference Result 1494 states and 1902 transitions. [2020-09-25 04:22:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:09,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-09-25 04:22:09,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:09,783 INFO L225 Difference]: With dead ends: 1494 [2020-09-25 04:22:09,783 INFO L226 Difference]: Without dead ends: 830 [2020-09-25 04:22:09,784 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 04:22:09,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-09-25 04:22:09,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 827. [2020-09-25 04:22:09,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2020-09-25 04:22:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1033 transitions. [2020-09-25 04:22:09,805 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1033 transitions. Word has length 169 [2020-09-25 04:22:09,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:09,806 INFO L479 AbstractCegarLoop]: Abstraction has 827 states and 1033 transitions. [2020-09-25 04:22:09,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:09,806 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1033 transitions. [2020-09-25 04:22:09,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 04:22:09,809 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:09,810 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, 1, 1, 1, 1, 1] [2020-09-25 04:22:09,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:22:09,810 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:09,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:09,811 INFO L82 PathProgramCache]: Analyzing trace with hash -368440854, now seen corresponding path program 1 times [2020-09-25 04:22:09,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:09,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225041691] [2020-09-25 04:22:09,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:10,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:10,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:10,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 04:22:10,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:22:10,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 753 [2020-09-25 04:22:10,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:10,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:10,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:22:10,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 04:22:10,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-25 04:22:10,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:10,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:10,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:10,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:10,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:10,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:10,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:10,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:10,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:10,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:10,723 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 04:22:10,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225041691] [2020-09-25 04:22:10,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:10,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:22:10,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864774656] [2020-09-25 04:22:10,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:22:10,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:10,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:22:10,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:22:10,725 INFO L87 Difference]: Start difference. First operand 827 states and 1033 transitions. Second operand 7 states. [2020-09-25 04:22:11,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:11,089 INFO L93 Difference]: Finished difference Result 1809 states and 2355 transitions. [2020-09-25 04:22:11,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:22:11,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-09-25 04:22:11,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:11,096 INFO L225 Difference]: With dead ends: 1809 [2020-09-25 04:22:11,096 INFO L226 Difference]: Without dead ends: 1091 [2020-09-25 04:22:11,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:22:11,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2020-09-25 04:22:11,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1026. [2020-09-25 04:22:11,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1026 states. [2020-09-25 04:22:11,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1281 transitions. [2020-09-25 04:22:11,133 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1281 transitions. Word has length 170 [2020-09-25 04:22:11,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:11,133 INFO L479 AbstractCegarLoop]: Abstraction has 1026 states and 1281 transitions. [2020-09-25 04:22:11,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:22:11,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1281 transitions. [2020-09-25 04:22:11,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 04:22:11,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:11,137 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-09-25 04:22:11,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:22:11,138 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:11,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:11,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2107579087, now seen corresponding path program 1 times [2020-09-25 04:22:11,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:11,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664084686] [2020-09-25 04:22:11,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:11,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:11,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:11,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:11,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:11,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 04:22:11,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:22:11,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-09-25 04:22:11,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:11,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-09-25 04:22:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 04:22:11,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:11,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:11,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:11,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:11,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:11,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:11,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:11,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:11,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:11,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:11,656 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:11,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664084686] [2020-09-25 04:22:11,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:11,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:11,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811881244] [2020-09-25 04:22:11,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:11,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:11,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:11,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:11,659 INFO L87 Difference]: Start difference. First operand 1026 states and 1281 transitions. Second operand 3 states. [2020-09-25 04:22:11,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:11,684 INFO L93 Difference]: Finished difference Result 1907 states and 2413 transitions. [2020-09-25 04:22:11,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:11,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-09-25 04:22:11,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:11,691 INFO L225 Difference]: With dead ends: 1907 [2020-09-25 04:22:11,691 INFO L226 Difference]: Without dead ends: 1026 [2020-09-25 04:22:11,694 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 04:22:11,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2020-09-25 04:22:11,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1026. [2020-09-25 04:22:11,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1026 states. [2020-09-25 04:22:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1267 transitions. [2020-09-25 04:22:11,729 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1267 transitions. Word has length 192 [2020-09-25 04:22:11,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:11,729 INFO L479 AbstractCegarLoop]: Abstraction has 1026 states and 1267 transitions. [2020-09-25 04:22:11,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1267 transitions. [2020-09-25 04:22:11,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 04:22:11,733 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:11,733 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 04:22:11,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:22:11,733 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:11,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:11,734 INFO L82 PathProgramCache]: Analyzing trace with hash -975828062, now seen corresponding path program 1 times [2020-09-25 04:22:11,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:11,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368114912] [2020-09-25 04:22:11,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:11,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:11,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:12,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 04:22:12,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 04:22:12,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:12,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-09-25 04:22:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:22:12,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:12,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:12,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:12,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:12,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:12,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:12,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:12,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:12,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:12,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:12,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 04:22:12,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368114912] [2020-09-25 04:22:12,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:12,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:12,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801904795] [2020-09-25 04:22:12,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:12,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:12,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:12,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:12,118 INFO L87 Difference]: Start difference. First operand 1026 states and 1267 transitions. Second operand 3 states. [2020-09-25 04:22:12,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:12,253 INFO L93 Difference]: Finished difference Result 2731 states and 3446 transitions. [2020-09-25 04:22:12,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:12,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2020-09-25 04:22:12,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:12,262 INFO L225 Difference]: With dead ends: 2731 [2020-09-25 04:22:12,263 INFO L226 Difference]: Without dead ends: 1850 [2020-09-25 04:22:12,267 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 04:22:12,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2020-09-25 04:22:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1848. [2020-09-25 04:22:12,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1848 states. [2020-09-25 04:22:12,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2291 transitions. [2020-09-25 04:22:12,342 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2291 transitions. Word has length 193 [2020-09-25 04:22:12,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:12,342 INFO L479 AbstractCegarLoop]: Abstraction has 1848 states and 2291 transitions. [2020-09-25 04:22:12,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:12,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2291 transitions. [2020-09-25 04:22:12,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 04:22:12,347 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:12,347 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, 1] [2020-09-25 04:22:12,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:22:12,348 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:12,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:12,348 INFO L82 PathProgramCache]: Analyzing trace with hash -181447866, now seen corresponding path program 1 times [2020-09-25 04:22:12,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:12,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570461248] [2020-09-25 04:22:12,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:12,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-25 04:22:12,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:12,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 04:22:12,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:12,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-25 04:22:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:22:12,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:12,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:12,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:12,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:12,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:12,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:12,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:12,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:12,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:12,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:12,686 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 04:22:12,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570461248] [2020-09-25 04:22:12,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:12,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:12,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955421671] [2020-09-25 04:22:12,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:12,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:12,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:12,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:12,693 INFO L87 Difference]: Start difference. First operand 1848 states and 2291 transitions. Second operand 3 states. [2020-09-25 04:22:12,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:12,764 INFO L93 Difference]: Finished difference Result 3557 states and 4439 transitions. [2020-09-25 04:22:12,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:12,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-09-25 04:22:12,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:12,774 INFO L225 Difference]: With dead ends: 3557 [2020-09-25 04:22:12,775 INFO L226 Difference]: Without dead ends: 1854 [2020-09-25 04:22:12,779 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 04:22:12,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2020-09-25 04:22:12,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1848. [2020-09-25 04:22:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1848 states. [2020-09-25 04:22:12,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2269 transitions. [2020-09-25 04:22:12,843 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2269 transitions. Word has length 194 [2020-09-25 04:22:12,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:12,844 INFO L479 AbstractCegarLoop]: Abstraction has 1848 states and 2269 transitions. [2020-09-25 04:22:12,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:12,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2269 transitions. [2020-09-25 04:22:12,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 04:22:12,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:12,849 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, 1, 1, 1] [2020-09-25 04:22:12,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:22:12,850 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:12,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:12,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1489848689, now seen corresponding path program 1 times [2020-09-25 04:22:12,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:12,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249440668] [2020-09-25 04:22:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:13,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:13,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:13,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 04:22:14,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1281 [2020-09-25 04:22:14,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 04:22:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 04:22:14,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:14,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:14,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,224 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:14,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249440668] [2020-09-25 04:22:14,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:14,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:14,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62727638] [2020-09-25 04:22:14,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:14,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:14,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:14,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:14,226 INFO L87 Difference]: Start difference. First operand 1848 states and 2269 transitions. Second operand 3 states. [2020-09-25 04:22:14,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:14,356 INFO L93 Difference]: Finished difference Result 3562 states and 4432 transitions. [2020-09-25 04:22:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:14,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2020-09-25 04:22:14,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:14,369 INFO L225 Difference]: With dead ends: 3562 [2020-09-25 04:22:14,370 INFO L226 Difference]: Without dead ends: 2681 [2020-09-25 04:22:14,372 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 04:22:14,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2020-09-25 04:22:14,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2679. [2020-09-25 04:22:14,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2679 states. [2020-09-25 04:22:14,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 3288 transitions. [2020-09-25 04:22:14,469 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 3288 transitions. Word has length 198 [2020-09-25 04:22:14,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:14,469 INFO L479 AbstractCegarLoop]: Abstraction has 2679 states and 3288 transitions. [2020-09-25 04:22:14,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:14,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 3288 transitions. [2020-09-25 04:22:14,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 04:22:14,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:14,476 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, 1, 1, 1, 1] [2020-09-25 04:22:14,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:22:14,476 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:14,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:14,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1416114514, now seen corresponding path program 1 times [2020-09-25 04:22:14,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:14,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068724968] [2020-09-25 04:22:14,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 04:22:15,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:15,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 581 [2020-09-25 04:22:15,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-25 04:22:15,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:22:15,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:15,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:15,213 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:15,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068724968] [2020-09-25 04:22:15,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:15,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539622731] [2020-09-25 04:22:15,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:15,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:15,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:15,216 INFO L87 Difference]: Start difference. First operand 2679 states and 3288 transitions. Second operand 3 states. [2020-09-25 04:22:15,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,496 INFO L93 Difference]: Finished difference Result 5869 states and 7403 transitions. [2020-09-25 04:22:15,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:15,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-09-25 04:22:15,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,512 INFO L225 Difference]: With dead ends: 5869 [2020-09-25 04:22:15,512 INFO L226 Difference]: Without dead ends: 3185 [2020-09-25 04:22:15,522 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 04:22:15,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2020-09-25 04:22:15,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3129. [2020-09-25 04:22:15,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3129 states. [2020-09-25 04:22:15,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 3795 transitions. [2020-09-25 04:22:15,627 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 3795 transitions. Word has length 199 [2020-09-25 04:22:15,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,627 INFO L479 AbstractCegarLoop]: Abstraction has 3129 states and 3795 transitions. [2020-09-25 04:22:15,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:15,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 3795 transitions. [2020-09-25 04:22:15,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 04:22:15,633 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,633 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 04:22:15,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:22:15,634 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,634 INFO L82 PathProgramCache]: Analyzing trace with hash 595350838, now seen corresponding path program 1 times [2020-09-25 04:22:15,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83661641] [2020-09-25 04:22:15,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 04:22:15,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 04:22:15,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:22:15,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-09-25 04:22:15,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 04:22:15,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:15,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:15,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:15,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,029 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 04:22:16,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83661641] [2020-09-25 04:22:16,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:22:16,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531378872] [2020-09-25 04:22:16,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:22:16,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:22:16,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:22:16,033 INFO L87 Difference]: Start difference. First operand 3129 states and 3795 transitions. Second operand 4 states. [2020-09-25 04:22:16,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:16,336 INFO L93 Difference]: Finished difference Result 12029 states and 14656 transitions. [2020-09-25 04:22:16,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:22:16,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 201 [2020-09-25 04:22:16,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:16,387 INFO L225 Difference]: With dead ends: 12029 [2020-09-25 04:22:16,387 INFO L226 Difference]: Without dead ends: 9045 [2020-09-25 04:22:16,400 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 04:22:16,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9045 states. [2020-09-25 04:22:16,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9045 to 5987. [2020-09-25 04:22:16,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5987 states. [2020-09-25 04:22:16,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5987 states to 5987 states and 7237 transitions. [2020-09-25 04:22:16,794 INFO L78 Accepts]: Start accepts. Automaton has 5987 states and 7237 transitions. Word has length 201 [2020-09-25 04:22:16,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:16,795 INFO L479 AbstractCegarLoop]: Abstraction has 5987 states and 7237 transitions. [2020-09-25 04:22:16,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:22:16,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5987 states and 7237 transitions. [2020-09-25 04:22:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 04:22:16,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:16,812 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 04:22:16,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:22:16,813 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:16,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:16,813 INFO L82 PathProgramCache]: Analyzing trace with hash -690870181, now seen corresponding path program 1 times [2020-09-25 04:22:16,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:16,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720282232] [2020-09-25 04:22:16,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:22:16,859 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:22:16,860 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:22:16,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 04:22:16,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:22:16 BoogieIcfgContainer [2020-09-25 04:22:16,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:22:16,937 INFO L168 Benchmark]: Toolchain (without parser) took 16510.10 ms. Allocated memory was 138.9 MB in the beginning and 498.1 MB in the end (delta: 359.1 MB). Free memory was 100.7 MB in the beginning and 372.3 MB in the end (delta: -271.6 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:16,939 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 04:22:16,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 619.72 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.0 MB in the beginning and 176.0 MB in the end (delta: -76.0 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:16,941 INFO L168 Benchmark]: Boogie Preprocessor took 64.92 ms. Allocated memory is still 201.3 MB. Free memory was 176.0 MB in the beginning and 173.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:16,943 INFO L168 Benchmark]: RCFGBuilder took 1028.38 ms. Allocated memory is still 201.3 MB. Free memory was 173.3 MB in the beginning and 102.5 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:16,949 INFO L168 Benchmark]: TraceAbstraction took 14785.07 ms. Allocated memory was 201.3 MB in the beginning and 498.1 MB in the end (delta: 296.7 MB). Free memory was 101.8 MB in the beginning and 372.3 MB in the end (delta: -270.5 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:16,955 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 138.9 MB. Free memory was 119.2 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 619.72 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.0 MB in the beginning and 176.0 MB in the end (delta: -76.0 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.92 ms. Allocated memory is still 201.3 MB. Free memory was 176.0 MB in the beginning and 173.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1028.38 ms. Allocated memory is still 201.3 MB. Free memory was 173.3 MB in the beginning and 102.5 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14785.07 ms. Allocated memory was 201.3 MB in the beginning and 498.1 MB in the end (delta: 296.7 MB). Free memory was 101.8 MB in the beginning and 372.3 MB in the end (delta: -270.5 MB). Peak memory consumption was 26.3 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: 14.6s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6161 SDtfs, 4033 SDslu, 6045 SDs, 0 SdLazy, 631 SolverSat, 117 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5987occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 3594 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 2358 NumberOfCodeBlocks, 2358 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2145 ConstructedInterpolants, 0 QuantifiedInterpolants, 584149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 85/85 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...