/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 06:39:10,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:39:10,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:39:10,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:39:10,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:39:10,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:39:10,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:39:10,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:39:10,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:39:10,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:39:10,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:39:10,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:39:10,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:39:10,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:39:10,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:39:10,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:39:10,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:39:10,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:39:10,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:39:10,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:39:10,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:39:10,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:39:10,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:39:10,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:39:10,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:39:10,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:39:10,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:39:10,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:39:10,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:39:10,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:39:10,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:39:10,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:39:10,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:39:10,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:39:10,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:39:10,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:39:10,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:39:10,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:39:10,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:39:10,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:39:10,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:39:10,109 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 06:39:10,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:39:10,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:39:10,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:39:10,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:39:10,139 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:39:10,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:39:10,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:39:10,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:39:10,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:39:10,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:39:10,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:39:10,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:39:10,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:39:10,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:39:10,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:39:10,141 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:39:10,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:39:10,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:39:10,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:39:10,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:39:10,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:39:10,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:39:10,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:39:10,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:39:10,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:39:10,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:39:10,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:39:10,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:39:10,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:39:10,144 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:39:10,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:39:10,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:39:10,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:39:10,672 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:39:10,672 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:39:10,673 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 06:39:10,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c7d154c3/71cd8ab59d8d4a9a8f95da02202ba133/FLAGf9c81be4d [2020-09-25 06:39:11,395 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:39:11,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 06:39:11,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c7d154c3/71cd8ab59d8d4a9a8f95da02202ba133/FLAGf9c81be4d [2020-09-25 06:39:11,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c7d154c3/71cd8ab59d8d4a9a8f95da02202ba133 [2020-09-25 06:39:11,654 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:39:11,663 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:39:11,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:11,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:39:11,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:39:11,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:11" (1/1) ... [2020-09-25 06:39:11,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2869c26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:11, skipping insertion in model container [2020-09-25 06:39:11,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:11" (1/1) ... [2020-09-25 06:39:11,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:39:11,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:39:12,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:12,067 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:39:12,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:12,252 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:39:12,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:12 WrapperNode [2020-09-25 06:39:12,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:12,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:39:12,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:39:12,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:39:12,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:12" (1/1) ... [2020-09-25 06:39:12,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:12" (1/1) ... [2020-09-25 06:39:12,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:12" (1/1) ... [2020-09-25 06:39:12,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:12" (1/1) ... [2020-09-25 06:39:12,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:12" (1/1) ... [2020-09-25 06:39:12,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:12" (1/1) ... [2020-09-25 06:39:12,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:12" (1/1) ... [2020-09-25 06:39:12,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:39:12,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:39:12,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:39:12,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:39:12,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:12" (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 06:39:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:39:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:39:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 06:39:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:39:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:39:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 06:39:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:39:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 06:39:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 06:39:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:39:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:39:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:39:12,630 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 06:39:13,365 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 06:39:13,366 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 06:39:13,384 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:39:13,384 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:39:13,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:13 BoogieIcfgContainer [2020-09-25 06:39:13,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:39:13,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:39:13,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:39:13,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:39:13,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:39:11" (1/3) ... [2020-09-25 06:39:13,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c5f12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:13, skipping insertion in model container [2020-09-25 06:39:13,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:12" (2/3) ... [2020-09-25 06:39:13,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c5f12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:13, skipping insertion in model container [2020-09-25 06:39:13,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:13" (3/3) ... [2020-09-25 06:39:13,404 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_14.cil.c [2020-09-25 06:39:13,417 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:39:13,429 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:39:13,452 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:39:13,495 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:39:13,496 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:39:13,496 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:39:13,496 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:39:13,496 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:39:13,496 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:39:13,497 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:39:13,497 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:39:13,528 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-25 06:39:13,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 06:39:13,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:13,547 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 06:39:13,548 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:13,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:13,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1268045474, now seen corresponding path program 1 times [2020-09-25 06:39:13,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:13,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031088243] [2020-09-25 06:39:13,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:13,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:14,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:14,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 06:39:15,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:39:15,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1557 [2020-09-25 06:39:15,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 06:39:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:39:15,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:39:15,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:15,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:15,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:15,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:15,553 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 06:39:15,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031088243] [2020-09-25 06:39:15,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:15,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:39:15,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549472317] [2020-09-25 06:39:15,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:39:15,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:15,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:39:15,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:39:15,590 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 4 states. [2020-09-25 06:39:16,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:16,072 INFO L93 Difference]: Finished difference Result 756 states and 995 transitions. [2020-09-25 06:39:16,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:39:16,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2020-09-25 06:39:16,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:16,117 INFO L225 Difference]: With dead ends: 756 [2020-09-25 06:39:16,118 INFO L226 Difference]: Without dead ends: 425 [2020-09-25 06:39:16,130 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 06:39:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-09-25 06:39:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 414. [2020-09-25 06:39:16,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2020-09-25 06:39:16,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 500 transitions. [2020-09-25 06:39:16,248 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 500 transitions. Word has length 158 [2020-09-25 06:39:16,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:16,249 INFO L479 AbstractCegarLoop]: Abstraction has 414 states and 500 transitions. [2020-09-25 06:39:16,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:39:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 500 transitions. [2020-09-25 06:39:16,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 06:39:16,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:16,255 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 06:39:16,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:39:16,255 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:16,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:16,256 INFO L82 PathProgramCache]: Analyzing trace with hash -948298101, now seen corresponding path program 1 times [2020-09-25 06:39:16,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:16,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005640788] [2020-09-25 06:39:16,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:16,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:16,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:16,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:17,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:17,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:17,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-09-25 06:39:17,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:39:17,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 869 [2020-09-25 06:39:17,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:17,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 06:39:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:39:17,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:17,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:17,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:17,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:17,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:17,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:17,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:17,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:17,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:17,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:17,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:17,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:17,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:17,230 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 06:39:17,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005640788] [2020-09-25 06:39:17,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:17,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:39:17,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852351447] [2020-09-25 06:39:17,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:39:17,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:17,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:39:17,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:39:17,235 INFO L87 Difference]: Start difference. First operand 414 states and 500 transitions. Second operand 4 states. [2020-09-25 06:39:17,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:17,559 INFO L93 Difference]: Finished difference Result 490 states and 595 transitions. [2020-09-25 06:39:17,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:39:17,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 06:39:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:17,569 INFO L225 Difference]: With dead ends: 490 [2020-09-25 06:39:17,569 INFO L226 Difference]: Without dead ends: 488 [2020-09-25 06:39:17,570 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 06:39:17,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-09-25 06:39:17,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 452. [2020-09-25 06:39:17,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-09-25 06:39:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 546 transitions. [2020-09-25 06:39:17,621 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 546 transitions. Word has length 163 [2020-09-25 06:39:17,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:17,625 INFO L479 AbstractCegarLoop]: Abstraction has 452 states and 546 transitions. [2020-09-25 06:39:17,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:39:17,626 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 546 transitions. [2020-09-25 06:39:17,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-25 06:39:17,631 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:17,632 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 06:39:17,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:39:17,632 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:17,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:17,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1511382065, now seen corresponding path program 1 times [2020-09-25 06:39:17,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:17,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336321859] [2020-09-25 06:39:17,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:17,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:17,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:17,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:18,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:18,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:18,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:19,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:19,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:19,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:39:19,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:39:19,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1906 [2020-09-25 06:39:19,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:19,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 06:39:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:39:19,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:19,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:19,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:19,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:19,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:19,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:19,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:39:19,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:19,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:19,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:19,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:19,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:19,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:19,669 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 06:39:19,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336321859] [2020-09-25 06:39:19,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:19,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:39:19,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142728711] [2020-09-25 06:39:19,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:39:19,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:19,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:39:19,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:39:19,675 INFO L87 Difference]: Start difference. First operand 452 states and 546 transitions. Second operand 4 states. [2020-09-25 06:39:19,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:19,937 INFO L93 Difference]: Finished difference Result 487 states and 593 transitions. [2020-09-25 06:39:19,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:39:19,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2020-09-25 06:39:19,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:19,943 INFO L225 Difference]: With dead ends: 487 [2020-09-25 06:39:19,943 INFO L226 Difference]: Without dead ends: 485 [2020-09-25 06:39:19,944 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 06:39:19,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-25 06:39:19,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 428. [2020-09-25 06:39:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-09-25 06:39:19,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 519 transitions. [2020-09-25 06:39:19,967 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 519 transitions. Word has length 164 [2020-09-25 06:39:19,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:19,968 INFO L479 AbstractCegarLoop]: Abstraction has 428 states and 519 transitions. [2020-09-25 06:39:19,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:39:19,968 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 519 transitions. [2020-09-25 06:39:19,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-25 06:39:19,972 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:19,973 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 06:39:19,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:39:19,973 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:19,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:19,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1830665339, now seen corresponding path program 1 times [2020-09-25 06:39:19,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:19,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267442400] [2020-09-25 06:39:19,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:20,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:20,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:20,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:20,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:20,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:20,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:39:20,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:39:20,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 901 [2020-09-25 06:39:20,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:20,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:20,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 06:39:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:39:20,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:39:20,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:20,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:20,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:20,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:20,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:20,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:20,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:20,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:20,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:20,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:20,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:39:20,976 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 06:39:20,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267442400] [2020-09-25 06:39:20,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:20,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:20,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745128665] [2020-09-25 06:39:20,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:20,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:20,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:20,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:20,982 INFO L87 Difference]: Start difference. First operand 428 states and 519 transitions. Second operand 3 states. [2020-09-25 06:39:21,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:21,022 INFO L93 Difference]: Finished difference Result 990 states and 1248 transitions. [2020-09-25 06:39:21,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:21,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-09-25 06:39:21,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:21,027 INFO L225 Difference]: With dead ends: 990 [2020-09-25 06:39:21,028 INFO L226 Difference]: Without dead ends: 705 [2020-09-25 06:39:21,031 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 06:39:21,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2020-09-25 06:39:21,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 692. [2020-09-25 06:39:21,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-09-25 06:39:21,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 859 transitions. [2020-09-25 06:39:21,066 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 859 transitions. Word has length 164 [2020-09-25 06:39:21,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:21,067 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 859 transitions. [2020-09-25 06:39:21,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:21,068 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 859 transitions. [2020-09-25 06:39:21,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 06:39:21,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:21,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:21,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:39:21,073 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:21,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:21,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1143844992, now seen corresponding path program 1 times [2020-09-25 06:39:21,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:21,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526031267] [2020-09-25 06:39:21,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:21,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:21,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:21,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:21,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:22,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:22,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:39:22,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:39:22,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 945 [2020-09-25 06:39:22,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:22,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:22,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:22,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-09-25 06:39:22,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 06:39:22,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:22,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:22,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:22,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:22,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:22,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:22,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:22,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:22,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:22,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:22,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:22,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:22,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:22,107 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 06:39:22,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526031267] [2020-09-25 06:39:22,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:22,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:22,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076812616] [2020-09-25 06:39:22,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:22,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:22,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:22,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:22,110 INFO L87 Difference]: Start difference. First operand 692 states and 859 transitions. Second operand 3 states. [2020-09-25 06:39:22,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:22,153 INFO L93 Difference]: Finished difference Result 1786 states and 2278 transitions. [2020-09-25 06:39:22,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:22,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-09-25 06:39:22,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:22,162 INFO L225 Difference]: With dead ends: 1786 [2020-09-25 06:39:22,162 INFO L226 Difference]: Without dead ends: 1238 [2020-09-25 06:39:22,164 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 06:39:22,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2020-09-25 06:39:22,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 960. [2020-09-25 06:39:22,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 960 states. [2020-09-25 06:39:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1207 transitions. [2020-09-25 06:39:22,202 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1207 transitions. Word has length 165 [2020-09-25 06:39:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:22,202 INFO L479 AbstractCegarLoop]: Abstraction has 960 states and 1207 transitions. [2020-09-25 06:39:22,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1207 transitions. [2020-09-25 06:39:22,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 06:39:22,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:22,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:22,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:39:22,207 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:22,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:22,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1205884606, now seen corresponding path program 1 times [2020-09-25 06:39:22,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:22,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535998214] [2020-09-25 06:39:22,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:22,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:22,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:22,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:22,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:22,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:39:22,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:39:22,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-09-25 06:39:22,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:22,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-09-25 06:39:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:39:22,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:22,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:22,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:22,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:22,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:22,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:22,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:22,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:22,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:22,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:22,821 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 06:39:22,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1535998214] [2020-09-25 06:39:22,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:22,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:39:22,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602100754] [2020-09-25 06:39:22,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:39:22,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:22,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:39:22,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:39:22,824 INFO L87 Difference]: Start difference. First operand 960 states and 1207 transitions. Second operand 4 states. [2020-09-25 06:39:23,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:23,111 INFO L93 Difference]: Finished difference Result 1154 states and 1454 transitions. [2020-09-25 06:39:23,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:39:23,111 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2020-09-25 06:39:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:23,118 INFO L225 Difference]: With dead ends: 1154 [2020-09-25 06:39:23,119 INFO L226 Difference]: Without dead ends: 1152 [2020-09-25 06:39:23,120 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 06:39:23,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-09-25 06:39:23,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 952. [2020-09-25 06:39:23,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2020-09-25 06:39:23,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1199 transitions. [2020-09-25 06:39:23,155 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1199 transitions. Word has length 165 [2020-09-25 06:39:23,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:23,156 INFO L479 AbstractCegarLoop]: Abstraction has 952 states and 1199 transitions. [2020-09-25 06:39:23,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:39:23,156 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1199 transitions. [2020-09-25 06:39:23,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 06:39:23,159 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:23,160 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 06:39:23,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:39:23,160 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:23,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:23,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1580880327, now seen corresponding path program 1 times [2020-09-25 06:39:23,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:23,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889063334] [2020-09-25 06:39:23,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-25 06:39:24,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:39:24,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1494 [2020-09-25 06:39:24,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:24,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-09-25 06:39:24,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 06:39:24,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:24,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:24,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:24,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:24,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:24,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,800 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 06:39:24,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889063334] [2020-09-25 06:39:24,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:24,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:39:24,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819170503] [2020-09-25 06:39:24,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:39:24,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:24,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:39:24,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:39:24,804 INFO L87 Difference]: Start difference. First operand 952 states and 1199 transitions. Second operand 4 states. [2020-09-25 06:39:25,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:25,152 INFO L93 Difference]: Finished difference Result 1098 states and 1390 transitions. [2020-09-25 06:39:25,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:39:25,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 169 [2020-09-25 06:39:25,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:25,165 INFO L225 Difference]: With dead ends: 1098 [2020-09-25 06:39:25,165 INFO L226 Difference]: Without dead ends: 1096 [2020-09-25 06:39:25,167 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 06:39:25,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-09-25 06:39:25,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 962. [2020-09-25 06:39:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 962 states. [2020-09-25 06:39:25,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1211 transitions. [2020-09-25 06:39:25,232 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1211 transitions. Word has length 169 [2020-09-25 06:39:25,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:25,233 INFO L479 AbstractCegarLoop]: Abstraction has 962 states and 1211 transitions. [2020-09-25 06:39:25,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:39:25,233 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1211 transitions. [2020-09-25 06:39:25,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 06:39:25,239 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:25,239 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 06:39:25,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:39:25,240 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:25,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:25,241 INFO L82 PathProgramCache]: Analyzing trace with hash -368440854, now seen corresponding path program 1 times [2020-09-25 06:39:25,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:25,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186680593] [2020-09-25 06:39:25,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 06:39:26,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:39:26,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 919 [2020-09-25 06:39:26,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:39:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 06:39:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-25 06:39:26,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:26,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:26,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,481 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 06:39:26,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186680593] [2020-09-25 06:39:26,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:39:26,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348904385] [2020-09-25 06:39:26,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:39:26,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:39:26,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:39:26,485 INFO L87 Difference]: Start difference. First operand 962 states and 1211 transitions. Second operand 7 states. [2020-09-25 06:39:26,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:26,904 INFO L93 Difference]: Finished difference Result 2223 states and 2903 transitions. [2020-09-25 06:39:26,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:39:26,904 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-09-25 06:39:26,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:26,914 INFO L225 Difference]: With dead ends: 2223 [2020-09-25 06:39:26,914 INFO L226 Difference]: Without dead ends: 1337 [2020-09-25 06:39:26,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:39:26,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2020-09-25 06:39:26,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1167. [2020-09-25 06:39:26,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2020-09-25 06:39:26,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1467 transitions. [2020-09-25 06:39:26,969 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1467 transitions. Word has length 170 [2020-09-25 06:39:26,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:26,970 INFO L479 AbstractCegarLoop]: Abstraction has 1167 states and 1467 transitions. [2020-09-25 06:39:26,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:39:26,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1467 transitions. [2020-09-25 06:39:26,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 06:39:26,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:26,974 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 06:39:26,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:39:26,975 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:26,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:26,976 INFO L82 PathProgramCache]: Analyzing trace with hash -2107579087, now seen corresponding path program 1 times [2020-09-25 06:39:26,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:26,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302630640] [2020-09-25 06:39:26,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 06:39:27,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:39:27,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-09-25 06:39:27,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:27,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-09-25 06:39:27,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 06:39:27,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:27,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:27,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:27,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:27,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:27,576 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 06:39:27,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302630640] [2020-09-25 06:39:27,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:27,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:27,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654979350] [2020-09-25 06:39:27,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:27,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:27,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:27,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,586 INFO L87 Difference]: Start difference. First operand 1167 states and 1467 transitions. Second operand 3 states. [2020-09-25 06:39:27,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:27,643 INFO L93 Difference]: Finished difference Result 2189 states and 2785 transitions. [2020-09-25 06:39:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:27,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-09-25 06:39:27,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:27,654 INFO L225 Difference]: With dead ends: 2189 [2020-09-25 06:39:27,654 INFO L226 Difference]: Without dead ends: 1167 [2020-09-25 06:39:27,658 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 06:39:27,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2020-09-25 06:39:27,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1167. [2020-09-25 06:39:27,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2020-09-25 06:39:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1454 transitions. [2020-09-25 06:39:27,718 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1454 transitions. Word has length 192 [2020-09-25 06:39:27,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:27,719 INFO L479 AbstractCegarLoop]: Abstraction has 1167 states and 1454 transitions. [2020-09-25 06:39:27,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:27,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1454 transitions. [2020-09-25 06:39:27,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 06:39:27,725 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:27,726 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 06:39:27,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:39:27,726 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:27,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:27,727 INFO L82 PathProgramCache]: Analyzing trace with hash -975828062, now seen corresponding path program 1 times [2020-09-25 06:39:27,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:27,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21155278] [2020-09-25 06:39:27,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 06:39:28,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:28,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-09-25 06:39:28,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:28,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-09-25 06:39:28,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 06:39:28,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:28,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:28,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:28,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:28,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:28,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:28,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:39:28,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21155278] [2020-09-25 06:39:28,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:28,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:28,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136747225] [2020-09-25 06:39:28,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:28,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:28,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:28,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:28,181 INFO L87 Difference]: Start difference. First operand 1167 states and 1454 transitions. Second operand 3 states. [2020-09-25 06:39:28,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:28,322 INFO L93 Difference]: Finished difference Result 3153 states and 4006 transitions. [2020-09-25 06:39:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:28,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2020-09-25 06:39:28,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:28,334 INFO L225 Difference]: With dead ends: 3153 [2020-09-25 06:39:28,334 INFO L226 Difference]: Without dead ends: 2131 [2020-09-25 06:39:28,337 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 06:39:28,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2020-09-25 06:39:28,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 2129. [2020-09-25 06:39:28,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2129 states. [2020-09-25 06:39:28,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 2663 transitions. [2020-09-25 06:39:28,426 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 2663 transitions. Word has length 193 [2020-09-25 06:39:28,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:28,427 INFO L479 AbstractCegarLoop]: Abstraction has 2129 states and 2663 transitions. [2020-09-25 06:39:28,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:28,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 2663 transitions. [2020-09-25 06:39:28,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 06:39:28,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:28,433 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:28,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 06:39:28,433 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:28,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:28,434 INFO L82 PathProgramCache]: Analyzing trace with hash -181447866, now seen corresponding path program 1 times [2020-09-25 06:39:28,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:28,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533300404] [2020-09-25 06:39:28,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-25 06:39:28,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:28,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 06:39:28,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-25 06:39:28,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 06:39:28,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:28,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:28,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:28,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:28,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:28,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:28,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:28,767 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 06:39:28,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533300404] [2020-09-25 06:39:28,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:28,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:28,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736101646] [2020-09-25 06:39:28,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:28,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:28,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:28,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:28,770 INFO L87 Difference]: Start difference. First operand 2129 states and 2663 transitions. Second operand 3 states. [2020-09-25 06:39:28,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:28,867 INFO L93 Difference]: Finished difference Result 4155 states and 5225 transitions. [2020-09-25 06:39:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:28,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-09-25 06:39:28,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:28,880 INFO L225 Difference]: With dead ends: 4155 [2020-09-25 06:39:28,880 INFO L226 Difference]: Without dead ends: 2171 [2020-09-25 06:39:28,893 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 06:39:28,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2020-09-25 06:39:29,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 2165. [2020-09-25 06:39:29,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2165 states. [2020-09-25 06:39:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 2679 transitions. [2020-09-25 06:39:29,010 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 2679 transitions. Word has length 194 [2020-09-25 06:39:29,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:29,011 INFO L479 AbstractCegarLoop]: Abstraction has 2165 states and 2679 transitions. [2020-09-25 06:39:29,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 2679 transitions. [2020-09-25 06:39:29,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 06:39:29,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:29,020 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:29,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 06:39:29,020 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:29,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:29,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1489848689, now seen corresponding path program 1 times [2020-09-25 06:39:29,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:29,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099795130] [2020-09-25 06:39:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:29,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:29,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:29,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:29,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:29,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:30,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:30,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 06:39:30,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:39:30,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1146 [2020-09-25 06:39:30,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:30,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-09-25 06:39:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 06:39:30,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:30,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:30,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:30,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:30,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:30,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:30,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:30,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:30,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:30,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:30,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:30,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:30,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:30,310 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 06:39:30,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099795130] [2020-09-25 06:39:30,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:30,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:39:30,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753794917] [2020-09-25 06:39:30,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:39:30,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:30,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:39:30,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:39:30,313 INFO L87 Difference]: Start difference. First operand 2165 states and 2679 transitions. Second operand 4 states. [2020-09-25 06:39:30,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:30,553 INFO L93 Difference]: Finished difference Result 8197 states and 10231 transitions. [2020-09-25 06:39:30,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:39:30,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2020-09-25 06:39:30,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:30,590 INFO L225 Difference]: With dead ends: 8197 [2020-09-25 06:39:30,590 INFO L226 Difference]: Without dead ends: 6177 [2020-09-25 06:39:30,597 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 06:39:30,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6177 states. [2020-09-25 06:39:30,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6177 to 4107. [2020-09-25 06:39:30,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4107 states. [2020-09-25 06:39:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 5078 transitions. [2020-09-25 06:39:30,870 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 5078 transitions. Word has length 198 [2020-09-25 06:39:30,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:30,871 INFO L479 AbstractCegarLoop]: Abstraction has 4107 states and 5078 transitions. [2020-09-25 06:39:30,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:39:30,871 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 5078 transitions. [2020-09-25 06:39:30,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 06:39:30,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:30,881 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:30,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 06:39:30,882 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:30,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:30,882 INFO L82 PathProgramCache]: Analyzing trace with hash -2089206390, now seen corresponding path program 1 times [2020-09-25 06:39:30,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:30,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362481148] [2020-09-25 06:39:30,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:30,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:31,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:31,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:31,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:31,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:31,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 06:39:31,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:39:31,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-09-25 06:39:31,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:31,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:31,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:31,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-25 06:39:31,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 06:39:31,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:31,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:31,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:31,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:31,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:31,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:31,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:31,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:31,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:31,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:31,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:31,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:31,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:31,435 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 06:39:31,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362481148] [2020-09-25 06:39:31,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:31,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:39:31,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003641374] [2020-09-25 06:39:31,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:39:31,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:31,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:39:31,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:39:31,438 INFO L87 Difference]: Start difference. First operand 4107 states and 5078 transitions. Second operand 4 states. [2020-09-25 06:39:31,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:31,941 INFO L93 Difference]: Finished difference Result 10047 states and 12674 transitions. [2020-09-25 06:39:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:39:31,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2020-09-25 06:39:31,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:31,978 INFO L225 Difference]: With dead ends: 10047 [2020-09-25 06:39:31,978 INFO L226 Difference]: Without dead ends: 5943 [2020-09-25 06:39:31,997 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 06:39:32,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2020-09-25 06:39:32,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5275. [2020-09-25 06:39:32,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5275 states. [2020-09-25 06:39:32,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 6468 transitions. [2020-09-25 06:39:32,250 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 6468 transitions. Word has length 198 [2020-09-25 06:39:32,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:32,250 INFO L479 AbstractCegarLoop]: Abstraction has 5275 states and 6468 transitions. [2020-09-25 06:39:32,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:39:32,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 6468 transitions. [2020-09-25 06:39:32,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 06:39:32,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:32,264 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 06:39:32,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 06:39:32,265 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:32,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:32,265 INFO L82 PathProgramCache]: Analyzing trace with hash -912264382, now seen corresponding path program 1 times [2020-09-25 06:39:32,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:32,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231608994] [2020-09-25 06:39:32,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:32,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:32,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:32,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-25 06:39:32,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:32,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-25 06:39:32,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:32,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 06:39:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 06:39:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:32,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:32,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:32,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:32,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:32,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:32,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:32,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:32,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:32,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:32,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:32,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:32,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:32,533 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 06:39:32,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231608994] [2020-09-25 06:39:32,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:32,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:32,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270256970] [2020-09-25 06:39:32,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:32,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:32,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:32,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:32,536 INFO L87 Difference]: Start difference. First operand 5275 states and 6468 transitions. Second operand 3 states. [2020-09-25 06:39:32,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:32,806 INFO L93 Difference]: Finished difference Result 10373 states and 12821 transitions. [2020-09-25 06:39:32,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:32,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-09-25 06:39:32,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:32,855 INFO L225 Difference]: With dead ends: 10373 [2020-09-25 06:39:32,855 INFO L226 Difference]: Without dead ends: 7744 [2020-09-25 06:39:32,863 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 06:39:32,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7744 states. [2020-09-25 06:39:33,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7744 to 7744. [2020-09-25 06:39:33,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7744 states. [2020-09-25 06:39:33,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7744 states to 7744 states and 9461 transitions. [2020-09-25 06:39:33,123 INFO L78 Accepts]: Start accepts. Automaton has 7744 states and 9461 transitions. Word has length 200 [2020-09-25 06:39:33,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:33,124 INFO L479 AbstractCegarLoop]: Abstraction has 7744 states and 9461 transitions. [2020-09-25 06:39:33,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:33,124 INFO L276 IsEmpty]: Start isEmpty. Operand 7744 states and 9461 transitions. [2020-09-25 06:39:33,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 06:39:33,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:33,138 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 06:39:33,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 06:39:33,139 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:33,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:33,139 INFO L82 PathProgramCache]: Analyzing trace with hash -690870181, now seen corresponding path program 1 times [2020-09-25 06:39:33,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:33,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501599066] [2020-09-25 06:39:33,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:39:33,165 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:39:33,165 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:39:33,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 06:39:33,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:39:33 BoogieIcfgContainer [2020-09-25 06:39:33,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:39:33,225 INFO L168 Benchmark]: Toolchain (without parser) took 21566.46 ms. Allocated memory was 140.0 MB in the beginning and 521.1 MB in the end (delta: 381.2 MB). Free memory was 103.0 MB in the beginning and 204.8 MB in the end (delta: -101.8 MB). Peak memory consumption was 279.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:33,226 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 06:39:33,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.71 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 177.8 MB in the end (delta: -75.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:33,229 INFO L168 Benchmark]: Boogie Preprocessor took 64.49 ms. Allocated memory is still 202.9 MB. Free memory was 177.8 MB in the beginning and 175.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:33,233 INFO L168 Benchmark]: RCFGBuilder took 1074.93 ms. Allocated memory is still 202.9 MB. Free memory was 174.8 MB in the beginning and 104.2 MB in the end (delta: 70.6 MB). Peak memory consumption was 70.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:33,234 INFO L168 Benchmark]: TraceAbstraction took 19825.74 ms. Allocated memory was 202.9 MB in the beginning and 521.1 MB in the end (delta: 318.2 MB). Free memory was 103.5 MB in the beginning and 204.8 MB in the end (delta: -101.3 MB). Peak memory consumption was 217.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:33,242 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 587.71 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 177.8 MB in the end (delta: -75.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.49 ms. Allocated memory is still 202.9 MB. Free memory was 177.8 MB in the beginning and 175.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1074.93 ms. Allocated memory is still 202.9 MB. Free memory was 174.8 MB in the beginning and 104.2 MB in the end (delta: 70.6 MB). Peak memory consumption was 70.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19825.74 ms. Allocated memory was 202.9 MB in the beginning and 521.1 MB in the end (delta: 318.2 MB). Free memory was 103.5 MB in the beginning and 204.8 MB in the end (delta: -101.3 MB). Peak memory consumption was 217.0 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: 19.6s, OverallIterations: 15, TraceHistogramMax: 2, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7367 SDtfs, 6139 SDslu, 8068 SDs, 0 SdLazy, 1405 SolverSat, 184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7744occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 3645 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 2694 NumberOfCodeBlocks, 2694 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2479 ConstructedInterpolants, 0 QuantifiedInterpolants, 709883 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 85/85 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...