/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=DEEPEST --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 00:56:45,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:56:45,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:56:45,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:56:45,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:56:45,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:56:45,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:56:45,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:56:45,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:56:45,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:56:45,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:56:45,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:56:45,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:56:45,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:56:45,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:56:45,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:56:45,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:56:45,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:56:45,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:56:45,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:56:45,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:56:45,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:56:45,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:56:45,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:56:45,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:56:45,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:56:45,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:56:45,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:56:45,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:56:45,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:56:45,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:56:45,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:56:45,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:56:45,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:56:45,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:56:45,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:56:45,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:56:45,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:56:45,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:56:45,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:56:45,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:56:45,865 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 00:56:45,890 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:56:45,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:56:45,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:56:45,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:56:45,892 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:56:45,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:56:45,892 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:56:45,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:56:45,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:56:45,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:56:45,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:56:45,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:56:45,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:56:45,893 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:56:45,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:56:45,894 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:56:45,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:56:45,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:56:45,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:56:45,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:56:45,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:56:45,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:56:45,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:56:45,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:56:45,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:56:45,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:56:45,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:56:45,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:56:45,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:56:45,897 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:56:46,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:56:46,367 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:56:46,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:56:46,374 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:56:46,375 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:56:46,376 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 00:56:46,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/741e7d2a8/671cd78f513e40bd937b558b1a38b944/FLAGfb9de02ef [2020-09-25 00:56:47,057 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:56:47,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 00:56:47,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/741e7d2a8/671cd78f513e40bd937b558b1a38b944/FLAGfb9de02ef [2020-09-25 00:56:47,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/741e7d2a8/671cd78f513e40bd937b558b1a38b944 [2020-09-25 00:56:47,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:56:47,370 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:56:47,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:56:47,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:56:47,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:56:47,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,382 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 12:56:47, skipping insertion in model container [2020-09-25 00:56:47,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:56:47,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:56:47,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:56:47,785 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:56:47,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:56:47,972 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:56:47,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47 WrapperNode [2020-09-25 00:56:47,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:56:47,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:56:47,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:56:47,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:56:47,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:48,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:48,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:48,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:48,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:56:48,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:56:48,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:56:48,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:56:48,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (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 00:56:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:56:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:56:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 00:56:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:56:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:56:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 00:56:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:56:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 00:56:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 00:56:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:56:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:56:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:56:48,360 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 00:56:49,059 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 00:56:49,060 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 00:56:49,076 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:56:49,077 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 00:56:49,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:56:49 BoogieIcfgContainer [2020-09-25 00:56:49,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:56:49,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:56:49,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:56:49,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:56:49,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:56:47" (1/3) ... [2020-09-25 00:56:49,091 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 12:56:49, skipping insertion in model container [2020-09-25 00:56:49,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (2/3) ... [2020-09-25 00:56:49,092 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 12:56:49, skipping insertion in model container [2020-09-25 00:56:49,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:56:49" (3/3) ... [2020-09-25 00:56:49,094 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_14.cil.c [2020-09-25 00:56:49,106 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:56:49,116 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:56:49,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:56:49,172 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:56:49,172 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:56:49,172 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:56:49,173 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:56:49,173 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:56:49,173 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:56:49,173 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:56:49,173 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:56:49,202 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-25 00:56:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 00:56:49,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:49,221 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 00:56:49,221 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:49,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:49,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1268045474, now seen corresponding path program 1 times [2020-09-25 00:56:49,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:49,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643028284] [2020-09-25 00:56:49,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:49,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:49,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:49,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:50,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:50,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:50,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 00:56:50,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:56:50,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1379 [2020-09-25 00:56:50,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:50,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:56:50,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 00:56:50,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:56:50,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:56:50,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:50,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:50,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:50,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:50,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:50,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:56:50,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:50,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:50,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:50,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:50,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:50,954 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 00:56:50,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643028284] [2020-09-25 00:56:50,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:50,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:56:50,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963662648] [2020-09-25 00:56:50,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:56:50,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:50,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:56:50,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:56:50,986 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 4 states. [2020-09-25 00:56:51,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:51,370 INFO L93 Difference]: Finished difference Result 756 states and 995 transitions. [2020-09-25 00:56:51,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:56:51,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2020-09-25 00:56:51,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:51,393 INFO L225 Difference]: With dead ends: 756 [2020-09-25 00:56:51,393 INFO L226 Difference]: Without dead ends: 425 [2020-09-25 00:56:51,400 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 00:56:51,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-09-25 00:56:51,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 414. [2020-09-25 00:56:51,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2020-09-25 00:56:51,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 500 transitions. [2020-09-25 00:56:51,514 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 500 transitions. Word has length 158 [2020-09-25 00:56:51,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:51,515 INFO L479 AbstractCegarLoop]: Abstraction has 414 states and 500 transitions. [2020-09-25 00:56:51,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:56:51,515 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 500 transitions. [2020-09-25 00:56:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 00:56:51,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:51,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:51,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:56:51,520 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:51,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:51,521 INFO L82 PathProgramCache]: Analyzing trace with hash -948298101, now seen corresponding path program 1 times [2020-09-25 00:56:51,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:51,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746973734] [2020-09-25 00:56:51,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:51,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:51,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:51,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:52,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:52,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:52,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-09-25 00:56:52,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:56:52,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 956 [2020-09-25 00:56:52,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:56:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 00:56:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 00:56:52,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:52,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:52,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:52,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:52,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:52,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:52,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:56:52,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:52,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:52,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:52,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:52,611 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 00:56:52,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746973734] [2020-09-25 00:56:52,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:52,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:56:52,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232006677] [2020-09-25 00:56:52,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:56:52,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:52,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:56:52,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:56:52,626 INFO L87 Difference]: Start difference. First operand 414 states and 500 transitions. Second operand 4 states. [2020-09-25 00:56:52,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:52,883 INFO L93 Difference]: Finished difference Result 490 states and 595 transitions. [2020-09-25 00:56:52,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:56:52,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 00:56:52,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:52,887 INFO L225 Difference]: With dead ends: 490 [2020-09-25 00:56:52,888 INFO L226 Difference]: Without dead ends: 488 [2020-09-25 00:56:52,889 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 00:56:52,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-09-25 00:56:52,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 452. [2020-09-25 00:56:52,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-09-25 00:56:52,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 546 transitions. [2020-09-25 00:56:52,911 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 546 transitions. Word has length 163 [2020-09-25 00:56:52,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:52,912 INFO L479 AbstractCegarLoop]: Abstraction has 452 states and 546 transitions. [2020-09-25 00:56:52,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:56:52,912 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 546 transitions. [2020-09-25 00:56:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-25 00:56:52,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:52,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:52,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:56:52,916 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:52,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:52,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1511382065, now seen corresponding path program 1 times [2020-09-25 00:56:52,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:52,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751345191] [2020-09-25 00:56:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:53,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:53,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:53,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:53,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:53,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:53,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:54,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:54,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:54,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:56:54,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:56:54,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1607 [2020-09-25 00:56:54,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:54,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:54,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-09-25 00:56:54,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:56:54,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:54,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:54,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:54,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:54,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:54,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:54,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:56:54,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:54,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:54,642 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 00:56:54,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751345191] [2020-09-25 00:56:54,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:54,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:54,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44919769] [2020-09-25 00:56:54,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:54,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:54,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:54,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:54,645 INFO L87 Difference]: Start difference. First operand 452 states and 546 transitions. Second operand 3 states. [2020-09-25 00:56:54,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:54,662 INFO L93 Difference]: Finished difference Result 721 states and 901 transitions. [2020-09-25 00:56:54,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:54,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-09-25 00:56:54,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:54,665 INFO L225 Difference]: With dead ends: 721 [2020-09-25 00:56:54,666 INFO L226 Difference]: Without dead ends: 403 [2020-09-25 00:56:54,667 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 00:56:54,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-09-25 00:56:54,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2020-09-25 00:56:54,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-09-25 00:56:54,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 486 transitions. [2020-09-25 00:56:54,680 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 486 transitions. Word has length 164 [2020-09-25 00:56:54,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:54,680 INFO L479 AbstractCegarLoop]: Abstraction has 403 states and 486 transitions. [2020-09-25 00:56:54,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:54,681 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 486 transitions. [2020-09-25 00:56:54,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-25 00:56:54,683 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:54,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:54,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:56:54,684 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:54,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:54,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1830665339, now seen corresponding path program 1 times [2020-09-25 00:56:54,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:54,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346495043] [2020-09-25 00:56:54,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:54,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:54,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:54,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:55,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:55,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:55,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:56:55,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:56:55,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 864 [2020-09-25 00:56:55,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:56:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 00:56:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:56:55,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:55,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:55,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:55,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:55,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:55,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:55,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:56:55,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:55,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:55,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:55,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:55,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:55,633 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 00:56:55,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346495043] [2020-09-25 00:56:55,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:55,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:56:55,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62421829] [2020-09-25 00:56:55,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:56:55,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:55,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:56:55,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:56:55,636 INFO L87 Difference]: Start difference. First operand 403 states and 486 transitions. Second operand 4 states. [2020-09-25 00:56:55,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:55,867 INFO L93 Difference]: Finished difference Result 447 states and 545 transitions. [2020-09-25 00:56:55,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:56:55,868 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2020-09-25 00:56:55,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:55,871 INFO L225 Difference]: With dead ends: 447 [2020-09-25 00:56:55,871 INFO L226 Difference]: Without dead ends: 445 [2020-09-25 00:56:55,871 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 00:56:55,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-09-25 00:56:55,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 395. [2020-09-25 00:56:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-09-25 00:56:55,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 478 transitions. [2020-09-25 00:56:55,882 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 478 transitions. Word has length 164 [2020-09-25 00:56:55,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:55,883 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 478 transitions. [2020-09-25 00:56:55,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:56:55,883 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 478 transitions. [2020-09-25 00:56:55,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 00:56:55,885 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:55,886 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] [2020-09-25 00:56:55,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:56:55,886 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:55,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:55,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1931092096, now seen corresponding path program 1 times [2020-09-25 00:56:55,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:55,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167432059] [2020-09-25 00:56:55,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:55,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:56,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:56,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:56,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:56,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:56,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:57,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:58,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-25 00:56:58,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:56:58,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2175 [2020-09-25 00:56:58,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:58,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:58,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 167 [2020-09-25 00:56:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:56:58,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:58,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:58,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:58,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:58,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:58,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:56:58,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:58,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:58,163 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 00:56:58,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167432059] [2020-09-25 00:56:58,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:58,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:58,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749011510] [2020-09-25 00:56:58,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:58,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:58,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:58,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:58,167 INFO L87 Difference]: Start difference. First operand 395 states and 478 transitions. Second operand 3 states. [2020-09-25 00:56:58,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:58,212 INFO L93 Difference]: Finished difference Result 654 states and 818 transitions. [2020-09-25 00:56:58,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:58,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-09-25 00:56:58,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:58,215 INFO L225 Difference]: With dead ends: 654 [2020-09-25 00:56:58,215 INFO L226 Difference]: Without dead ends: 402 [2020-09-25 00:56:58,216 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 00:56:58,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-25 00:56:58,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 401. [2020-09-25 00:56:58,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-09-25 00:56:58,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 485 transitions. [2020-09-25 00:56:58,227 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 485 transitions. Word has length 168 [2020-09-25 00:56:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:58,227 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 485 transitions. [2020-09-25 00:56:58,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 485 transitions. [2020-09-25 00:56:58,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 00:56:58,229 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:58,229 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 00:56:58,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:56:58,230 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:58,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:58,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1898189393, now seen corresponding path program 1 times [2020-09-25 00:56:58,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:58,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807727238] [2020-09-25 00:56:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:58,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:59,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-25 00:56:59,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:56:59,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 932 [2020-09-25 00:56:59,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:59,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:59,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 00:56:59,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 00:56:59,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:59,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:59,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:59,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:59,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:56:59,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:59,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:59,252 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 00:56:59,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807727238] [2020-09-25 00:56:59,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:59,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:59,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444703950] [2020-09-25 00:56:59,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:59,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:59,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:59,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:59,255 INFO L87 Difference]: Start difference. First operand 401 states and 485 transitions. Second operand 3 states. [2020-09-25 00:56:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:59,280 INFO L93 Difference]: Finished difference Result 909 states and 1146 transitions. [2020-09-25 00:56:59,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:59,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-09-25 00:56:59,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:59,285 INFO L225 Difference]: With dead ends: 909 [2020-09-25 00:56:59,285 INFO L226 Difference]: Without dead ends: 651 [2020-09-25 00:56:59,286 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 00:56:59,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-09-25 00:56:59,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 646. [2020-09-25 00:56:59,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2020-09-25 00:56:59,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 799 transitions. [2020-09-25 00:56:59,310 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 799 transitions. Word has length 169 [2020-09-25 00:56:59,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:59,311 INFO L479 AbstractCegarLoop]: Abstraction has 646 states and 799 transitions. [2020-09-25 00:56:59,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:59,311 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 799 transitions. [2020-09-25 00:56:59,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 00:56:59,313 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:59,314 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 00:56:59,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:56:59,314 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:59,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:59,315 INFO L82 PathProgramCache]: Analyzing trace with hash 333159020, now seen corresponding path program 1 times [2020-09-25 00:56:59,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:59,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278197419] [2020-09-25 00:56:59,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:59,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:00,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 00:57:00,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:57:00,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1121 [2020-09-25 00:57:00,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:00,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:00,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-09-25 00:57:00,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:57:00,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:00,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:00,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:00,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:00,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:00,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:00,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:00,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:00,522 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 00:57:00,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278197419] [2020-09-25 00:57:00,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:00,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:00,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532275954] [2020-09-25 00:57:00,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:00,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:00,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:00,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:00,525 INFO L87 Difference]: Start difference. First operand 646 states and 799 transitions. Second operand 3 states. [2020-09-25 00:57:00,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:00,568 INFO L93 Difference]: Finished difference Result 1648 states and 2098 transitions. [2020-09-25 00:57:00,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:00,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-09-25 00:57:00,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:00,575 INFO L225 Difference]: With dead ends: 1648 [2020-09-25 00:57:00,575 INFO L226 Difference]: Without dead ends: 1146 [2020-09-25 00:57:00,578 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 00:57:00,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2020-09-25 00:57:00,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 895. [2020-09-25 00:57:00,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-09-25 00:57:00,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1121 transitions. [2020-09-25 00:57:00,604 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1121 transitions. Word has length 170 [2020-09-25 00:57:00,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:00,605 INFO L479 AbstractCegarLoop]: Abstraction has 895 states and 1121 transitions. [2020-09-25 00:57:00,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:00,605 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1121 transitions. [2020-09-25 00:57:00,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 00:57:00,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:00,608 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 00:57:00,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:57:00,608 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:00,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:00,609 INFO L82 PathProgramCache]: Analyzing trace with hash -368440854, now seen corresponding path program 1 times [2020-09-25 00:57:00,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:00,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377177095] [2020-09-25 00:57:00,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:00,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:01,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 00:57:01,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:57:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 754 [2020-09-25 00:57:01,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:57:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 00:57:01,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-25 00:57:01,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:01,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:01,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:01,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:01,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:01,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:01,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:01,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:01,492 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 00:57:01,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377177095] [2020-09-25 00:57:01,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:01,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:57:01,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159632096] [2020-09-25 00:57:01,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:57:01,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:01,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:57:01,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:57:01,494 INFO L87 Difference]: Start difference. First operand 895 states and 1121 transitions. Second operand 6 states. [2020-09-25 00:57:01,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:01,696 INFO L93 Difference]: Finished difference Result 1705 states and 2168 transitions. [2020-09-25 00:57:01,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:57:01,697 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2020-09-25 00:57:01,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:01,702 INFO L225 Difference]: With dead ends: 1705 [2020-09-25 00:57:01,702 INFO L226 Difference]: Without dead ends: 955 [2020-09-25 00:57:01,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:57:01,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-09-25 00:57:01,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 928. [2020-09-25 00:57:01,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-09-25 00:57:01,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1154 transitions. [2020-09-25 00:57:01,736 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1154 transitions. Word has length 170 [2020-09-25 00:57:01,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:01,737 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1154 transitions. [2020-09-25 00:57:01,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:57:01,738 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1154 transitions. [2020-09-25 00:57:01,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 00:57:01,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:01,742 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 00:57:01,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:57:01,743 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:01,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:01,743 INFO L82 PathProgramCache]: Analyzing trace with hash -2107579087, now seen corresponding path program 1 times [2020-09-25 00:57:01,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:01,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65518933] [2020-09-25 00:57:01,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:01,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:02,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 00:57:02,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:57:02,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-09-25 00:57:02,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 00:57:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 00:57:02,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:02,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:02,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:02,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:02,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:02,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:02,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:02,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:02,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:02,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:02,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:02,201 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 00:57:02,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65518933] [2020-09-25 00:57:02,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:02,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:02,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539213167] [2020-09-25 00:57:02,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:02,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:02,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:02,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:02,208 INFO L87 Difference]: Start difference. First operand 928 states and 1154 transitions. Second operand 3 states. [2020-09-25 00:57:02,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:02,270 INFO L93 Difference]: Finished difference Result 2314 states and 2945 transitions. [2020-09-25 00:57:02,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:02,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-09-25 00:57:02,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:02,285 INFO L225 Difference]: With dead ends: 2314 [2020-09-25 00:57:02,285 INFO L226 Difference]: Without dead ends: 1564 [2020-09-25 00:57:02,287 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 00:57:02,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2020-09-25 00:57:02,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1133. [2020-09-25 00:57:02,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2020-09-25 00:57:02,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1417 transitions. [2020-09-25 00:57:02,353 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1417 transitions. Word has length 192 [2020-09-25 00:57:02,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:02,354 INFO L479 AbstractCegarLoop]: Abstraction has 1133 states and 1417 transitions. [2020-09-25 00:57:02,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:02,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1417 transitions. [2020-09-25 00:57:02,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 00:57:02,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:02,362 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 00:57:02,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:57:02,363 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:02,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:02,364 INFO L82 PathProgramCache]: Analyzing trace with hash -975828062, now seen corresponding path program 1 times [2020-09-25 00:57:02,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:02,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102414214] [2020-09-25 00:57:02,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:02,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:02,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 00:57:02,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:57:02,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-09-25 00:57:02,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-25 00:57:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:57:02,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:02,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:02,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:02,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:02,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:02,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:02,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:02,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:02,842 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 00:57:02,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102414214] [2020-09-25 00:57:02,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:02,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:02,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084177787] [2020-09-25 00:57:02,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:02,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:02,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:02,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:02,845 INFO L87 Difference]: Start difference. First operand 1133 states and 1417 transitions. Second operand 3 states. [2020-09-25 00:57:02,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:02,908 INFO L93 Difference]: Finished difference Result 2097 states and 2661 transitions. [2020-09-25 00:57:02,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:02,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2020-09-25 00:57:02,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:02,917 INFO L225 Difference]: With dead ends: 2097 [2020-09-25 00:57:02,917 INFO L226 Difference]: Without dead ends: 1142 [2020-09-25 00:57:02,920 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 00:57:02,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-09-25 00:57:02,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1133. [2020-09-25 00:57:02,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2020-09-25 00:57:02,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1410 transitions. [2020-09-25 00:57:02,985 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1410 transitions. Word has length 193 [2020-09-25 00:57:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:02,986 INFO L479 AbstractCegarLoop]: Abstraction has 1133 states and 1410 transitions. [2020-09-25 00:57:02,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:02,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1410 transitions. [2020-09-25 00:57:02,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-25 00:57:02,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:02,994 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] [2020-09-25 00:57:02,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 00:57:02,995 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:02,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:02,996 INFO L82 PathProgramCache]: Analyzing trace with hash -624041749, now seen corresponding path program 1 times [2020-09-25 00:57:02,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:02,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64618834] [2020-09-25 00:57:02,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:03,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:03,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:03,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:03,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:03,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:04,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:04,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 00:57:04,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:57:04,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1135 [2020-09-25 00:57:04,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:04,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:04,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-09-25 00:57:04,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:57:04,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:04,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:04,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:04,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:04,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:04,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:04,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:04,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:04,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:04,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:04,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:04,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:04,238 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 00:57:04,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64618834] [2020-09-25 00:57:04,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:04,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:04,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443812492] [2020-09-25 00:57:04,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:04,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:04,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:04,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:04,242 INFO L87 Difference]: Start difference. First operand 1133 states and 1410 transitions. Second operand 3 states. [2020-09-25 00:57:04,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:04,478 INFO L93 Difference]: Finished difference Result 2324 states and 3009 transitions. [2020-09-25 00:57:04,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:04,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-09-25 00:57:04,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:04,487 INFO L225 Difference]: With dead ends: 2324 [2020-09-25 00:57:04,488 INFO L226 Difference]: Without dead ends: 1347 [2020-09-25 00:57:04,493 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 00:57:04,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2020-09-25 00:57:04,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1323. [2020-09-25 00:57:04,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1323 states. [2020-09-25 00:57:04,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1622 transitions. [2020-09-25 00:57:04,543 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1622 transitions. Word has length 197 [2020-09-25 00:57:04,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:04,543 INFO L479 AbstractCegarLoop]: Abstraction has 1323 states and 1622 transitions. [2020-09-25 00:57:04,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:04,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1622 transitions. [2020-09-25 00:57:04,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 00:57:04,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:04,548 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:04,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 00:57:04,548 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:04,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:04,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1638317469, now seen corresponding path program 1 times [2020-09-25 00:57:04,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:04,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125035760] [2020-09-25 00:57:04,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:04,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:04,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:04,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:04,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 00:57:04,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:57:04,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-09-25 00:57:04,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:04,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:57:04,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-09-25 00:57:04,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:57:04,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:05,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:05,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:05,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:05,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:05,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:05,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:05,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:05,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:05,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:05,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:05,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:05,149 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 00:57:05,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125035760] [2020-09-25 00:57:05,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:05,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:57:05,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020275178] [2020-09-25 00:57:05,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:57:05,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:05,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:57:05,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:57:05,153 INFO L87 Difference]: Start difference. First operand 1323 states and 1622 transitions. Second operand 4 states. [2020-09-25 00:57:05,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:05,323 INFO L93 Difference]: Finished difference Result 4746 states and 5923 transitions. [2020-09-25 00:57:05,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:57:05,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2020-09-25 00:57:05,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:05,340 INFO L225 Difference]: With dead ends: 4746 [2020-09-25 00:57:05,340 INFO L226 Difference]: Without dead ends: 3601 [2020-09-25 00:57:05,344 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 00:57:05,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2020-09-25 00:57:05,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 2213. [2020-09-25 00:57:05,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2213 states. [2020-09-25 00:57:05,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 2732 transitions. [2020-09-25 00:57:05,447 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 2732 transitions. Word has length 199 [2020-09-25 00:57:05,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:05,448 INFO L479 AbstractCegarLoop]: Abstraction has 2213 states and 2732 transitions. [2020-09-25 00:57:05,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:57:05,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 2732 transitions. [2020-09-25 00:57:05,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 00:57:05,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:05,456 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:05,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 00:57:05,457 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:05,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:05,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1256430280, now seen corresponding path program 1 times [2020-09-25 00:57:05,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:05,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851381691] [2020-09-25 00:57:05,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:05,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:05,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:05,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 00:57:05,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:05,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 00:57:05,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:05,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:05,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-09-25 00:57:05,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:57:05,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:05,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:05,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:05,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:05,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:05,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:05,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:05,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:05,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:05,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:05,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:05,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:05,691 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:57:05,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851381691] [2020-09-25 00:57:05,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:05,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:05,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637854061] [2020-09-25 00:57:05,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:05,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:05,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:05,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:05,694 INFO L87 Difference]: Start difference. First operand 2213 states and 2732 transitions. Second operand 3 states. [2020-09-25 00:57:05,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:05,830 INFO L93 Difference]: Finished difference Result 4237 states and 5275 transitions. [2020-09-25 00:57:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:05,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-09-25 00:57:05,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:05,843 INFO L225 Difference]: With dead ends: 4237 [2020-09-25 00:57:05,843 INFO L226 Difference]: Without dead ends: 2243 [2020-09-25 00:57:05,856 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 00:57:05,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2020-09-25 00:57:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 2243. [2020-09-25 00:57:05,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2243 states. [2020-09-25 00:57:05,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 2762 transitions. [2020-09-25 00:57:05,969 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 2762 transitions. Word has length 199 [2020-09-25 00:57:05,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:05,970 INFO L479 AbstractCegarLoop]: Abstraction has 2243 states and 2762 transitions. [2020-09-25 00:57:05,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:05,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 2762 transitions. [2020-09-25 00:57:05,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 00:57:05,980 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:05,980 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:05,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 00:57:05,981 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:05,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:05,982 INFO L82 PathProgramCache]: Analyzing trace with hash -912264382, now seen corresponding path program 1 times [2020-09-25 00:57:05,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:05,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874555490] [2020-09-25 00:57:05,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:06,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:06,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:06,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-25 00:57:06,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:06,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 00:57:06,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 00:57:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:57:06,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:06,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:06,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:06,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:06,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:06,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:06,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:06,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:06,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:06,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:06,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:06,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:06,263 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 00:57:06,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874555490] [2020-09-25 00:57:06,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:06,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:06,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154760822] [2020-09-25 00:57:06,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:06,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:06,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:06,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:06,265 INFO L87 Difference]: Start difference. First operand 2243 states and 2762 transitions. Second operand 3 states. [2020-09-25 00:57:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:06,434 INFO L93 Difference]: Finished difference Result 6119 states and 7657 transitions. [2020-09-25 00:57:06,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:06,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-09-25 00:57:06,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:06,454 INFO L225 Difference]: With dead ends: 6119 [2020-09-25 00:57:06,454 INFO L226 Difference]: Without dead ends: 4125 [2020-09-25 00:57:06,462 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 00:57:06,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4125 states. [2020-09-25 00:57:06,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4125 to 4123. [2020-09-25 00:57:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4123 states. [2020-09-25 00:57:06,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4123 states to 4123 states and 5072 transitions. [2020-09-25 00:57:06,604 INFO L78 Accepts]: Start accepts. Automaton has 4123 states and 5072 transitions. Word has length 200 [2020-09-25 00:57:06,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:06,604 INFO L479 AbstractCegarLoop]: Abstraction has 4123 states and 5072 transitions. [2020-09-25 00:57:06,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4123 states and 5072 transitions. [2020-09-25 00:57:06,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 00:57:06,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:06,611 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 00:57:06,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 00:57:06,611 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:06,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:06,612 INFO L82 PathProgramCache]: Analyzing trace with hash -690870181, now seen corresponding path program 1 times [2020-09-25 00:57:06,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:06,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447431447] [2020-09-25 00:57:06,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:57:06,641 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:57:06,641 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:57:06,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 00:57:06,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:57:06 BoogieIcfgContainer [2020-09-25 00:57:06,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:57:06,693 INFO L168 Benchmark]: Toolchain (without parser) took 19325.94 ms. Allocated memory was 111.7 MB in the beginning and 433.6 MB in the end (delta: 321.9 MB). Free memory was 73.4 MB in the beginning and 284.7 MB in the end (delta: -211.3 MB). Peak memory consumption was 110.6 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:06,694 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 111.7 MB. Free memory was 91.3 MB in the beginning and 91.2 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. [2020-09-25 00:57:06,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.49 ms. Allocated memory was 111.7 MB in the beginning and 169.3 MB in the end (delta: 57.7 MB). Free memory was 72.8 MB in the beginning and 151.4 MB in the end (delta: -78.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:06,697 INFO L168 Benchmark]: Boogie Preprocessor took 70.89 ms. Allocated memory is still 169.3 MB. Free memory was 151.4 MB in the beginning and 148.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:06,701 INFO L168 Benchmark]: RCFGBuilder took 1040.43 ms. Allocated memory was 169.3 MB in the beginning and 186.6 MB in the end (delta: 17.3 MB). Free memory was 148.2 MB in the beginning and 151.6 MB in the end (delta: -3.4 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:06,702 INFO L168 Benchmark]: TraceAbstraction took 17602.50 ms. Allocated memory was 186.6 MB in the beginning and 433.6 MB in the end (delta: 246.9 MB). Free memory was 150.8 MB in the beginning and 284.7 MB in the end (delta: -133.9 MB). Peak memory consumption was 113.1 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:06,709 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 111.7 MB. Free memory was 91.3 MB in the beginning and 91.2 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 602.49 ms. Allocated memory was 111.7 MB in the beginning and 169.3 MB in the end (delta: 57.7 MB). Free memory was 72.8 MB in the beginning and 151.4 MB in the end (delta: -78.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.89 ms. Allocated memory is still 169.3 MB. Free memory was 151.4 MB in the beginning and 148.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1040.43 ms. Allocated memory was 169.3 MB in the beginning and 186.6 MB in the end (delta: 17.3 MB). Free memory was 148.2 MB in the beginning and 151.6 MB in the end (delta: -3.4 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17602.50 ms. Allocated memory was 186.6 MB in the beginning and 433.6 MB in the end (delta: 246.9 MB). Free memory was 150.8 MB in the beginning and 284.7 MB in the end (delta: -133.9 MB). Peak memory consumption was 113.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 640]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L645] int s ; [L646] int tmp ; [L650] s = 8464 [L651] CALL ssl3_accept(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L72] s__s3__tmp__reuse_message = 0 [L73] s__state = initial_state [L74] blastFlag = 0 [L75] tmp = __VERIFIER_nondet_int() [L76] Time = tmp [L77] cb = 0 [L78] ret = -1 [L79] skip = 0 [L80] got_new_session = 0 [L81] COND FALSE !(s__info_callback != 0) [L84] COND FALSE !(s__ctx__info_callback != 0) [L88] s__in_handshake ++ [L89] COND TRUE tmp___1 + 12288 [L90] COND TRUE tmp___2 + 16384 [L94] COND FALSE !(s__cert == 0) [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND TRUE s__state == 8464 [L271] s__shutdown = 0 [L272] ret = __VERIFIER_nondet_int() [L273] COND TRUE blastFlag == 0 [L274] blastFlag = 1 [L276] COND FALSE !(ret <= 0) [L279] got_new_session = 1 [L280] s__state = 8496 [L281] s__init_num = 0 [L602] COND TRUE ! s__s3__tmp__reuse_message [L603] COND TRUE ! skip [L604] COND TRUE tmp___1 != -12288 [L605] COND TRUE s__state != 8656 [L606] COND TRUE tmp___2 != -16384 [L607] COND FALSE !(state == 8496) [L614] COND FALSE !(\read(s__debug)) [L620] COND FALSE !(cb != 0) [L629] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND FALSE !(s__state == 8464) [L128] COND FALSE !(s__state == 8465) [L131] COND FALSE !(s__state == 8466) [L134] COND TRUE s__state == 8496 [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 1 [L287] blastFlag = 2 [L289] COND FALSE !(ret <= 0) [L292] COND FALSE !(\read(s__hit)) [L295] s__state = 8512 [L297] s__init_num = 0 [L602] COND TRUE ! s__s3__tmp__reuse_message [L603] COND TRUE ! skip [L604] COND TRUE tmp___1 != -12288 [L605] COND TRUE s__state != 8656 [L606] COND TRUE tmp___2 != -16384 [L607] COND TRUE state == 8496 [L640] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 426 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.4s, OverallIterations: 15, TraceHistogramMax: 2, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6477 SDtfs, 3898 SDslu, 7062 SDs, 0 SdLazy, 929 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4123occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 2235 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 13.1s InterpolantComputationTime, 2707 NumberOfCodeBlocks, 2707 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2492 ConstructedInterpolants, 0 QuantifiedInterpolants, 665566 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 91/91 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...