/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 interpolation-heuristic=FIRST --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_13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:00:18,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:00:18,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:00:18,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:00:18,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:00:18,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:00:18,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:00:18,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:00:18,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:00:18,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:00:18,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:00:18,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:00:18,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:00:18,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:00:18,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:00:18,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:00:18,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:00:18,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:00:18,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:00:18,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:00:18,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:00:18,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:00:18,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:00:18,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:00:18,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:00:18,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:00:18,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:00:18,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:00:18,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:00:18,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:00:18,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:00:18,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:00:18,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:00:18,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:00:18,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:00:18,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:00:18,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:00:18,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:00:18,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:00:18,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:00:18,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:00:18,790 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 [2020-09-24 16:00:18,817 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:00:18,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:00:18,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:00:18,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:00:18,819 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:00:18,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:00:18,820 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:00:18,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:00:18,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:00:18,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:00:18,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:00:18,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:00:18,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:00:18,821 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:00:18,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:00:18,821 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:00:18,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:00:18,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:00:18,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:00:18,822 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:00:18,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:00:18,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:00:18,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:00:18,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:00:18,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:00:18,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:00:18,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:00:18,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:00:18,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:00:18,824 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:00:19,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:00:19,314 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:00:19,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:00:19,321 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:00:19,321 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:00:19,322 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-24 16:00:19,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffcf9867e/dae725dabe4940d491af28e7db7508e9/FLAGb75afa25d [2020-09-24 16:00:20,001 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:00:20,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-24 16:00:20,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffcf9867e/dae725dabe4940d491af28e7db7508e9/FLAGb75afa25d [2020-09-24 16:00:20,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffcf9867e/dae725dabe4940d491af28e7db7508e9 [2020-09-24 16:00:20,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:00:20,341 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:00:20,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:20,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:00:20,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:00:20,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:20" (1/1) ... [2020-09-24 16:00:20,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26bc88a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:20, skipping insertion in model container [2020-09-24 16:00:20,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:20" (1/1) ... [2020-09-24 16:00:20,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:00:20,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:00:20,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:20,831 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:00:21,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:21,081 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:00:21,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:21 WrapperNode [2020-09-24 16:00:21,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:21,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:00:21,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:00:21,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:00:21,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:21" (1/1) ... [2020-09-24 16:00:21,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:21" (1/1) ... [2020-09-24 16:00:21,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:21" (1/1) ... [2020-09-24 16:00:21,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:21" (1/1) ... [2020-09-24 16:00:21,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:21" (1/1) ... [2020-09-24 16:00:21,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:21" (1/1) ... [2020-09-24 16:00:21,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:21" (1/1) ... [2020-09-24 16:00:21,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:00:21,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:00:21,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:00:21,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:00:21,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:21" (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 [2020-09-24 16:00:21,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:00:21,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:00:21,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-24 16:00:21,263 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:00:21,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:00:21,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 16:00:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:00:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 16:00:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-24 16:00:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:00:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:00:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:00:21,537 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 16:00:22,214 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-24 16:00:22,215 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-24 16:00:22,231 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:00:22,231 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 16:00:22,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:22 BoogieIcfgContainer [2020-09-24 16:00:22,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:00:22,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:00:22,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:00:22,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:00:22,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:00:20" (1/3) ... [2020-09-24 16:00:22,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f4ee5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:22, skipping insertion in model container [2020-09-24 16:00:22,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:21" (2/3) ... [2020-09-24 16:00:22,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f4ee5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:22, skipping insertion in model container [2020-09-24 16:00:22,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:22" (3/3) ... [2020-09-24 16:00:22,250 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_13.cil.c [2020-09-24 16:00:22,262 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:00:22,274 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:00:22,293 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:00:22,323 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:00:22,323 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:00:22,324 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:00:22,324 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:00:22,324 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:00:22,324 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:00:22,324 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:00:22,324 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:00:22,355 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states. [2020-09-24 16:00:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:00:22,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:22,375 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] [2020-09-24 16:00:22,376 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:22,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:22,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1103530067, now seen corresponding path program 1 times [2020-09-24 16:00:22,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:22,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743965121] [2020-09-24 16:00:22,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:22,646 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:22,646 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:22,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:22,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:22,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-24 16:00:22,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:22,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 16:00:22,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:22,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:00:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 16:00:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-24 16:00:22,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:22,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:22,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:22,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:22,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:22,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:22,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:22,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:22,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:22,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:22,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:22,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:22,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:22,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:23,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:23,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743965121] [2020-09-24 16:00:23,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:23,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:00:23,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036505650] [2020-09-24 16:00:23,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:00:23,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:23,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:00:23,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:00:23,062 INFO L87 Difference]: Start difference. First operand 440 states. Second operand 6 states. [2020-09-24 16:00:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:23,591 INFO L93 Difference]: Finished difference Result 832 states and 1103 transitions. [2020-09-24 16:00:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:23,594 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-24 16:00:23,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:23,620 INFO L225 Difference]: With dead ends: 832 [2020-09-24 16:00:23,621 INFO L226 Difference]: Without dead ends: 472 [2020-09-24 16:00:23,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:00:23,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-09-24 16:00:23,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 459. [2020-09-24 16:00:23,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-09-24 16:00:23,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 549 transitions. [2020-09-24 16:00:23,725 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 549 transitions. Word has length 160 [2020-09-24 16:00:23,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:23,726 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 549 transitions. [2020-09-24 16:00:23,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:00:23,726 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 549 transitions. [2020-09-24 16:00:23,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-24 16:00:23,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:23,731 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] [2020-09-24 16:00:23,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:00:23,732 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:23,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:23,732 INFO L82 PathProgramCache]: Analyzing trace with hash -466072829, now seen corresponding path program 1 times [2020-09-24 16:00:23,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:23,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488948969] [2020-09-24 16:00:23,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:23,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:23,826 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:23,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:23,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:23,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-24 16:00:23,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:23,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:00:23,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-24 16:00:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 16:00:23,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:23,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:23,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:23,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:23,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:23,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:23,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:23,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:23,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:23,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:23,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:23,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:23,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:23,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488948969] [2020-09-24 16:00:23,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:23,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:23,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309356096] [2020-09-24 16:00:23,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:23,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:23,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:23,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:23,948 INFO L87 Difference]: Start difference. First operand 459 states and 549 transitions. Second operand 3 states. [2020-09-24 16:00:24,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:24,049 INFO L93 Difference]: Finished difference Result 1085 states and 1347 transitions. [2020-09-24 16:00:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:24,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-09-24 16:00:24,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:24,055 INFO L225 Difference]: With dead ends: 1085 [2020-09-24 16:00:24,055 INFO L226 Difference]: Without dead ends: 766 [2020-09-24 16:00:24,058 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 [2020-09-24 16:00:24,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2020-09-24 16:00:24,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 764. [2020-09-24 16:00:24,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 764 states. [2020-09-24 16:00:24,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 931 transitions. [2020-09-24 16:00:24,088 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 931 transitions. Word has length 169 [2020-09-24 16:00:24,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:24,089 INFO L479 AbstractCegarLoop]: Abstraction has 764 states and 931 transitions. [2020-09-24 16:00:24,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:24,089 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 931 transitions. [2020-09-24 16:00:24,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 16:00:24,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:24,092 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] [2020-09-24 16:00:24,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:00:24,093 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:24,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:24,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1669990880, now seen corresponding path program 1 times [2020-09-24 16:00:24,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:24,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685791034] [2020-09-24 16:00:24,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:24,135 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:24,135 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:24,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:24,136 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:24,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-24 16:00:24,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:24,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:24,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-24 16:00:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:24,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:24,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:24,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:24,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:24,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:24,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:24,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:24,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:24,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:24,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:24,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:24,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:24,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:24,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:24,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685791034] [2020-09-24 16:00:24,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:24,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:24,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150650712] [2020-09-24 16:00:24,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:24,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:24,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:24,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:24,217 INFO L87 Difference]: Start difference. First operand 764 states and 931 transitions. Second operand 3 states. [2020-09-24 16:00:24,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:24,497 INFO L93 Difference]: Finished difference Result 1539 states and 1955 transitions. [2020-09-24 16:00:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:24,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-09-24 16:00:24,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:24,504 INFO L225 Difference]: With dead ends: 1539 [2020-09-24 16:00:24,504 INFO L226 Difference]: Without dead ends: 891 [2020-09-24 16:00:24,506 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 [2020-09-24 16:00:24,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2020-09-24 16:00:24,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 822. [2020-09-24 16:00:24,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 822 states. [2020-09-24 16:00:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1019 transitions. [2020-09-24 16:00:24,532 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1019 transitions. Word has length 170 [2020-09-24 16:00:24,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:24,533 INFO L479 AbstractCegarLoop]: Abstraction has 822 states and 1019 transitions. [2020-09-24 16:00:24,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:24,534 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1019 transitions. [2020-09-24 16:00:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 16:00:24,536 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:24,536 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, 1, 1, 1, 1, 1] [2020-09-24 16:00:24,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:00:24,537 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:24,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:24,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1230208187, now seen corresponding path program 1 times [2020-09-24 16:00:24,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:24,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730885200] [2020-09-24 16:00:24,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:24,575 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:24,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:24,576 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:24,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:24,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-09-24 16:00:24,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:24,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:00:24,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:00:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 16:00:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-24 16:00:24,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:24,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:24,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:24,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:24,690 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:24,690 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:24,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:24,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:24,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:24,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:24,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:24,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:24,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:24,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:24,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:24,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730885200] [2020-09-24 16:00:24,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:24,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:00:24,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365196065] [2020-09-24 16:00:24,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:00:24,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:24,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:00:24,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:00:24,722 INFO L87 Difference]: Start difference. First operand 822 states and 1019 transitions. Second operand 6 states. [2020-09-24 16:00:25,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:25,088 INFO L93 Difference]: Finished difference Result 1293 states and 1643 transitions. [2020-09-24 16:00:25,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:25,088 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-09-24 16:00:25,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:25,092 INFO L225 Difference]: With dead ends: 1293 [2020-09-24 16:00:25,092 INFO L226 Difference]: Without dead ends: 585 [2020-09-24 16:00:25,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:00:25,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-09-24 16:00:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 569. [2020-09-24 16:00:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2020-09-24 16:00:25,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 703 transitions. [2020-09-24 16:00:25,111 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 703 transitions. Word has length 175 [2020-09-24 16:00:25,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:25,111 INFO L479 AbstractCegarLoop]: Abstraction has 569 states and 703 transitions. [2020-09-24 16:00:25,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:00:25,111 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 703 transitions. [2020-09-24 16:00:25,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-24 16:00:25,114 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:25,114 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:25,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:00:25,115 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:25,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:25,115 INFO L82 PathProgramCache]: Analyzing trace with hash -312164926, now seen corresponding path program 1 times [2020-09-24 16:00:25,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:25,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171372342] [2020-09-24 16:00:25,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:25,153 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:25,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:25,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:25,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:25,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 16:00:25,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:25,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:25,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 16:00:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 16:00:25,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:25,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:25,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:25,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:25,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:25,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:25,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:25,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:25,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:25,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:25,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:25,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:25,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:25,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:25,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171372342] [2020-09-24 16:00:25,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:25,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:25,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084120978] [2020-09-24 16:00:25,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:25,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:25,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:25,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:25,233 INFO L87 Difference]: Start difference. First operand 569 states and 703 transitions. Second operand 3 states. [2020-09-24 16:00:25,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:25,352 INFO L93 Difference]: Finished difference Result 1382 states and 1775 transitions. [2020-09-24 16:00:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:25,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-09-24 16:00:25,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:25,359 INFO L225 Difference]: With dead ends: 1382 [2020-09-24 16:00:25,360 INFO L226 Difference]: Without dead ends: 969 [2020-09-24 16:00:25,362 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 [2020-09-24 16:00:25,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2020-09-24 16:00:25,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 967. [2020-09-24 16:00:25,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2020-09-24 16:00:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1221 transitions. [2020-09-24 16:00:25,402 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1221 transitions. Word has length 197 [2020-09-24 16:00:25,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:25,404 INFO L479 AbstractCegarLoop]: Abstraction has 967 states and 1221 transitions. [2020-09-24 16:00:25,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:25,404 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1221 transitions. [2020-09-24 16:00:25,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-24 16:00:25,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:25,408 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] [2020-09-24 16:00:25,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:00:25,409 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:25,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:25,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1190618208, now seen corresponding path program 1 times [2020-09-24 16:00:25,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:25,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289577004] [2020-09-24 16:00:25,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:25,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:25,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:25,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:25,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:25,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 16:00:25,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:25,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:25,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:25,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-24 16:00:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:25,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:25,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:25,529 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:25,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:25,530 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:25,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:25,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:25,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:25,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:25,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:25,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 16:00:25,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289577004] [2020-09-24 16:00:25,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:25,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:25,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386715345] [2020-09-24 16:00:25,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:25,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:25,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:25,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:25,637 INFO L87 Difference]: Start difference. First operand 967 states and 1221 transitions. Second operand 3 states. [2020-09-24 16:00:25,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:25,911 INFO L93 Difference]: Finished difference Result 1889 states and 2467 transitions. [2020-09-24 16:00:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:25,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2020-09-24 16:00:25,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:25,917 INFO L225 Difference]: With dead ends: 1889 [2020-09-24 16:00:25,918 INFO L226 Difference]: Without dead ends: 1078 [2020-09-24 16:00:25,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:25,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2020-09-24 16:00:25,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1062. [2020-09-24 16:00:25,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2020-09-24 16:00:25,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1334 transitions. [2020-09-24 16:00:25,951 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1334 transitions. Word has length 198 [2020-09-24 16:00:25,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:25,951 INFO L479 AbstractCegarLoop]: Abstraction has 1062 states and 1334 transitions. [2020-09-24 16:00:25,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:25,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1334 transitions. [2020-09-24 16:00:25,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-24 16:00:25,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:25,955 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] [2020-09-24 16:00:25,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:00:25,955 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:25,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:25,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1815361344, now seen corresponding path program 1 times [2020-09-24 16:00:25,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:25,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501390246] [2020-09-24 16:00:25,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:25,987 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:25,987 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:25,988 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:25,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:25,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 16:00:25,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:25,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:25,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-24 16:00:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:25,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:26,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:26,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:26,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:26,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:26,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:26,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:26,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:26,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:26,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:26,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:26,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:26,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:26,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 16:00:26,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501390246] [2020-09-24 16:00:26,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:26,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:26,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476567861] [2020-09-24 16:00:26,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:26,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:26,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:26,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:26,086 INFO L87 Difference]: Start difference. First operand 1062 states and 1334 transitions. Second operand 3 states. [2020-09-24 16:00:26,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:26,422 INFO L93 Difference]: Finished difference Result 2052 states and 2632 transitions. [2020-09-24 16:00:26,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:26,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2020-09-24 16:00:26,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:26,432 INFO L225 Difference]: With dead ends: 2052 [2020-09-24 16:00:26,432 INFO L226 Difference]: Without dead ends: 1126 [2020-09-24 16:00:26,435 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 [2020-09-24 16:00:26,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2020-09-24 16:00:26,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1093. [2020-09-24 16:00:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2020-09-24 16:00:26,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1379 transitions. [2020-09-24 16:00:26,533 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1379 transitions. Word has length 198 [2020-09-24 16:00:26,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:26,534 INFO L479 AbstractCegarLoop]: Abstraction has 1093 states and 1379 transitions. [2020-09-24 16:00:26,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:26,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1379 transitions. [2020-09-24 16:00:26,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-24 16:00:26,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:26,542 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, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:26,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:00:26,542 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:26,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:26,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1252882748, now seen corresponding path program 1 times [2020-09-24 16:00:26,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:26,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975280979] [2020-09-24 16:00:26,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:26,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:26,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:26,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:26,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:26,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-24 16:00:26,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:26,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:26,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:26,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:26,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 201 [2020-09-24 16:00:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:00:26,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:26,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:26,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:26,651 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:26,651 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:26,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:26,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:26,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:26,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:26,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:26,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:26,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:26,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:26,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:26,687 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 16:00:26,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975280979] [2020-09-24 16:00:26,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:26,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:26,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033512683] [2020-09-24 16:00:26,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:26,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:26,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:26,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:26,690 INFO L87 Difference]: Start difference. First operand 1093 states and 1379 transitions. Second operand 3 states. [2020-09-24 16:00:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:26,737 INFO L93 Difference]: Finished difference Result 2050 states and 2622 transitions. [2020-09-24 16:00:26,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:26,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2020-09-24 16:00:26,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:26,744 INFO L225 Difference]: With dead ends: 2050 [2020-09-24 16:00:26,745 INFO L226 Difference]: Without dead ends: 1113 [2020-09-24 16:00:26,747 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 [2020-09-24 16:00:26,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2020-09-24 16:00:26,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1111. [2020-09-24 16:00:26,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2020-09-24 16:00:26,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1399 transitions. [2020-09-24 16:00:26,783 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1399 transitions. Word has length 207 [2020-09-24 16:00:26,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:26,783 INFO L479 AbstractCegarLoop]: Abstraction has 1111 states and 1399 transitions. [2020-09-24 16:00:26,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:26,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1399 transitions. [2020-09-24 16:00:26,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-24 16:00:26,788 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:26,788 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:26,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 16:00:26,788 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:26,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:26,789 INFO L82 PathProgramCache]: Analyzing trace with hash -50860722, now seen corresponding path program 1 times [2020-09-24 16:00:26,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:26,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088426362] [2020-09-24 16:00:26,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:26,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:26,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:26,821 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:26,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:26,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-09-24 16:00:26,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:26,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:26,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:26,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:00:26,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 16:00:26,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:00:26,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:26,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:26,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:26,896 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:26,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:26,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:26,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:26,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:26,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:26,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:26,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:26,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:26,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:26,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:26,931 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:00:26,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088426362] [2020-09-24 16:00:26,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:26,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:00:26,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422565751] [2020-09-24 16:00:26,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:00:26,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:26,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:00:26,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:00:26,940 INFO L87 Difference]: Start difference. First operand 1111 states and 1399 transitions. Second operand 4 states. [2020-09-24 16:00:27,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:27,243 INFO L93 Difference]: Finished difference Result 2161 states and 2774 transitions. [2020-09-24 16:00:27,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:00:27,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 209 [2020-09-24 16:00:27,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:27,250 INFO L225 Difference]: With dead ends: 2161 [2020-09-24 16:00:27,250 INFO L226 Difference]: Without dead ends: 1206 [2020-09-24 16:00:27,253 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 [2020-09-24 16:00:27,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2020-09-24 16:00:27,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1133. [2020-09-24 16:00:27,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2020-09-24 16:00:27,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1417 transitions. [2020-09-24 16:00:27,329 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1417 transitions. Word has length 209 [2020-09-24 16:00:27,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:27,330 INFO L479 AbstractCegarLoop]: Abstraction has 1133 states and 1417 transitions. [2020-09-24 16:00:27,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:00:27,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1417 transitions. [2020-09-24 16:00:27,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 16:00:27,332 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:27,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:27,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 16:00:27,333 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:27,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:27,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1999743939, now seen corresponding path program 1 times [2020-09-24 16:00:27,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:27,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912785713] [2020-09-24 16:00:27,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,367 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,367 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,367 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-24 16:00:27,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:27,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-24 16:00:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:27,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:27,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:27,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:27,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:27,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:27,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:27,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:27,438 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 16:00:27,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912785713] [2020-09-24 16:00:27,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:27,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:27,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610977187] [2020-09-24 16:00:27,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:27,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:27,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:27,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:27,441 INFO L87 Difference]: Start difference. First operand 1133 states and 1417 transitions. Second operand 3 states. [2020-09-24 16:00:27,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:27,714 INFO L93 Difference]: Finished difference Result 2329 states and 2986 transitions. [2020-09-24 16:00:27,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:27,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-09-24 16:00:27,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:27,725 INFO L225 Difference]: With dead ends: 2329 [2020-09-24 16:00:27,725 INFO L226 Difference]: Without dead ends: 1316 [2020-09-24 16:00:27,728 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 [2020-09-24 16:00:27,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2020-09-24 16:00:27,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1209. [2020-09-24 16:00:27,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-09-24 16:00:27,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1527 transitions. [2020-09-24 16:00:27,770 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1527 transitions. Word has length 211 [2020-09-24 16:00:27,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:27,770 INFO L479 AbstractCegarLoop]: Abstraction has 1209 states and 1527 transitions. [2020-09-24 16:00:27,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:27,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1527 transitions. [2020-09-24 16:00:27,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-24 16:00:27,775 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:27,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:27,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 16:00:27,776 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:27,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:27,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1941211029, now seen corresponding path program 1 times [2020-09-24 16:00:27,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:27,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343225426] [2020-09-24 16:00:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-09-24 16:00:27,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:27,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:00:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-24 16:00:27,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 16:00:27,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:27,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:27,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:27,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:27,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:27,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:27,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:27,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:27,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:27,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:27,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:27,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:27,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:27,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:27,912 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:27,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343225426] [2020-09-24 16:00:27,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:27,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:00:27,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451032090] [2020-09-24 16:00:27,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:00:27,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:27,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:00:27,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:00:27,915 INFO L87 Difference]: Start difference. First operand 1209 states and 1527 transitions. Second operand 4 states. [2020-09-24 16:00:28,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:28,321 INFO L93 Difference]: Finished difference Result 2495 states and 3227 transitions. [2020-09-24 16:00:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:00:28,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 216 [2020-09-24 16:00:28,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:28,329 INFO L225 Difference]: With dead ends: 2495 [2020-09-24 16:00:28,329 INFO L226 Difference]: Without dead ends: 1442 [2020-09-24 16:00:28,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:00:28,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2020-09-24 16:00:28,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 777. [2020-09-24 16:00:28,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2020-09-24 16:00:28,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 962 transitions. [2020-09-24 16:00:28,363 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 962 transitions. Word has length 216 [2020-09-24 16:00:28,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:28,363 INFO L479 AbstractCegarLoop]: Abstraction has 777 states and 962 transitions. [2020-09-24 16:00:28,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:00:28,364 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 962 transitions. [2020-09-24 16:00:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-24 16:00:28,367 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:28,368 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:28,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 16:00:28,368 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:28,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:28,369 INFO L82 PathProgramCache]: Analyzing trace with hash -165389337, now seen corresponding path program 1 times [2020-09-24 16:00:28,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:28,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662492553] [2020-09-24 16:00:28,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-24 16:00:28,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:28,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-24 16:00:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 16:00:28,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:28,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,475 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:28,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:28,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:28,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:28,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:28,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:28,536 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 16:00:28,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662492553] [2020-09-24 16:00:28,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:28,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:28,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216867361] [2020-09-24 16:00:28,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:28,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:28,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:28,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:28,540 INFO L87 Difference]: Start difference. First operand 777 states and 962 transitions. Second operand 3 states. [2020-09-24 16:00:28,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:28,676 INFO L93 Difference]: Finished difference Result 1971 states and 2512 transitions. [2020-09-24 16:00:28,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:28,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-24 16:00:28,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:28,687 INFO L225 Difference]: With dead ends: 1971 [2020-09-24 16:00:28,687 INFO L226 Difference]: Without dead ends: 1350 [2020-09-24 16:00:28,693 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 [2020-09-24 16:00:28,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2020-09-24 16:00:28,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1348. [2020-09-24 16:00:28,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1348 states. [2020-09-24 16:00:28,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1703 transitions. [2020-09-24 16:00:28,755 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1703 transitions. Word has length 232 [2020-09-24 16:00:28,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:28,755 INFO L479 AbstractCegarLoop]: Abstraction has 1348 states and 1703 transitions. [2020-09-24 16:00:28,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:28,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1703 transitions. [2020-09-24 16:00:28,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-09-24 16:00:28,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:28,760 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:28,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 16:00:28,760 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:28,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:28,761 INFO L82 PathProgramCache]: Analyzing trace with hash -662598379, now seen corresponding path program 1 times [2020-09-24 16:00:28,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:28,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453666018] [2020-09-24 16:00:28,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 16:00:28,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:00:28,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:00:28,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-24 16:00:28,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 16:00:28,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:28,866 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:28,866 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:28,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:28,867 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:28,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:28,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:28,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:28,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:28,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:28,908 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 16:00:28,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453666018] [2020-09-24 16:00:28,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:28,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:00:28,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304305755] [2020-09-24 16:00:28,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:00:28,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:28,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:00:28,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:00:28,911 INFO L87 Difference]: Start difference. First operand 1348 states and 1703 transitions. Second operand 4 states. [2020-09-24 16:00:29,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:29,450 INFO L93 Difference]: Finished difference Result 4034 states and 5199 transitions. [2020-09-24 16:00:29,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:00:29,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 244 [2020-09-24 16:00:29,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:29,470 INFO L225 Difference]: With dead ends: 4034 [2020-09-24 16:00:29,470 INFO L226 Difference]: Without dead ends: 2842 [2020-09-24 16:00:29,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:00:29,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2020-09-24 16:00:29,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1450. [2020-09-24 16:00:29,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2020-09-24 16:00:29,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1817 transitions. [2020-09-24 16:00:29,572 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1817 transitions. Word has length 244 [2020-09-24 16:00:29,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:29,573 INFO L479 AbstractCegarLoop]: Abstraction has 1450 states and 1817 transitions. [2020-09-24 16:00:29,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:00:29,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1817 transitions. [2020-09-24 16:00:29,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-09-24 16:00:29,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:29,582 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:29,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 16:00:29,583 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:29,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:29,584 INFO L82 PathProgramCache]: Analyzing trace with hash 435015861, now seen corresponding path program 1 times [2020-09-24 16:00:29,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:29,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060931564] [2020-09-24 16:00:29,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:29,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:29,641 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:29,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:29,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:29,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 16:00:29,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:29,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:00:29,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:29,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:00:29,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-24 16:00:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 16:00:29,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:29,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:29,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:29,713 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:29,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:29,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:29,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:29,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:29,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:29,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:29,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:29,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 16:00:29,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060931564] [2020-09-24 16:00:29,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:29,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:00:29,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743550929] [2020-09-24 16:00:29,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:00:29,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:29,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:00:29,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:00:29,772 INFO L87 Difference]: Start difference. First operand 1450 states and 1817 transitions. Second operand 4 states. [2020-09-24 16:00:30,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:30,163 INFO L93 Difference]: Finished difference Result 4120 states and 5249 transitions. [2020-09-24 16:00:30,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:00:30,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 244 [2020-09-24 16:00:30,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:30,178 INFO L225 Difference]: With dead ends: 4120 [2020-09-24 16:00:30,178 INFO L226 Difference]: Without dead ends: 2826 [2020-09-24 16:00:30,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:00:30,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2020-09-24 16:00:30,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 1456. [2020-09-24 16:00:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1456 states. [2020-09-24 16:00:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1807 transitions. [2020-09-24 16:00:30,246 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1807 transitions. Word has length 244 [2020-09-24 16:00:30,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:30,247 INFO L479 AbstractCegarLoop]: Abstraction has 1456 states and 1807 transitions. [2020-09-24 16:00:30,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:00:30,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1807 transitions. [2020-09-24 16:00:30,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-24 16:00:30,255 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:30,255 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:30,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 16:00:30,256 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:30,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:30,256 INFO L82 PathProgramCache]: Analyzing trace with hash -196875119, now seen corresponding path program 1 times [2020-09-24 16:00:30,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:30,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416474461] [2020-09-24 16:00:30,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 16:00:30,325 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 16:00:30,325 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 16:00:30,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 16:00:30,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:00:30 BoogieIcfgContainer [2020-09-24 16:00:30,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:00:30,387 INFO L168 Benchmark]: Toolchain (without parser) took 10048.79 ms. Allocated memory was 140.0 MB in the beginning and 432.0 MB in the end (delta: 292.0 MB). Free memory was 100.8 MB in the beginning and 141.4 MB in the end (delta: -40.5 MB). Peak memory consumption was 251.5 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:30,387 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 140.0 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-24 16:00:30,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.45 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 178.3 MB in the end (delta: -78.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:30,391 INFO L168 Benchmark]: Boogie Preprocessor took 98.11 ms. Allocated memory is still 203.4 MB. Free memory was 178.3 MB in the beginning and 175.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:30,396 INFO L168 Benchmark]: RCFGBuilder took 1058.86 ms. Allocated memory is still 203.4 MB. Free memory was 175.7 MB in the beginning and 102.6 MB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:30,396 INFO L168 Benchmark]: TraceAbstraction took 8141.38 ms. Allocated memory was 203.4 MB in the beginning and 432.0 MB in the end (delta: 228.6 MB). Free memory was 102.0 MB in the beginning and 141.4 MB in the end (delta: -39.4 MB). Peak memory consumption was 189.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:30,403 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 140.0 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.45 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 178.3 MB in the end (delta: -78.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.11 ms. Allocated memory is still 203.4 MB. Free memory was 178.3 MB in the beginning and 175.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1058.86 ms. Allocated memory is still 203.4 MB. Free memory was 175.7 MB in the beginning and 102.6 MB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8141.38 ms. Allocated memory was 203.4 MB in the beginning and 432.0 MB in the end (delta: 228.6 MB). Free memory was 102.0 MB in the beginning and 141.4 MB in the end (delta: -39.4 MB). Peak memory consumption was 189.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 642]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L647] int s ; [L648] int tmp ; [L652] s = 8464 [L653] 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 ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength ; [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 = __VERIFIER_nondet_int() ; [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__state = initial_state [L73] blastFlag = 0 [L74] tmp = __VERIFIER_nondet_int() [L75] Time = tmp [L76] cb = 0 [L77] ret = -1 [L78] skip = 0 [L79] got_new_session = 0 [L80] COND TRUE s__info_callback != 0 [L81] cb = s__info_callback [L87] s__in_handshake ++ [L88] COND FALSE !(tmp___1 + 12288) [L93] COND FALSE !(s__cert == 0) [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND TRUE s__state == 8464 [L270] s__shutdown = 0 [L271] ret = __VERIFIER_nondet_int() [L272] COND TRUE blastFlag == 0 [L273] blastFlag = 1 [L275] COND FALSE !(ret <= 0) [L278] got_new_session = 1 [L279] s__state = 8496 [L280] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND TRUE s__state == 8496 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L288] COND FALSE !(ret <= 0) [L291] COND FALSE !(\read(s__hit)) [L294] s__state = 8512 [L296] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND TRUE s__state == 8512 [L301] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L302] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L303] COND TRUE __cil_tmp56 + 256UL [L304] skip = 1 [L315] s__state = 8528 [L316] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND FALSE !(s__state == 8512) [L142] COND FALSE !(s__state == 8513) [L145] COND TRUE s__state == 8528 [L320] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L321] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L323] __cil_tmp57 = (unsigned long )s__options [L324] COND TRUE __cil_tmp57 + 2097152UL [L325] s__s3__tmp__use_rsa_tmp = 1 [L330] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L357] ret = __VERIFIER_nondet_int() [L358] COND FALSE !(blastFlag == 6) [L361] COND FALSE !(ret <= 0) [L378] s__state = 8544 [L379] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND TRUE ! s__s3__tmp__reuse_message [L601] COND TRUE ! skip [L602] COND TRUE state == 8528 [L603] COND TRUE s__state == 8544 [L604] COND TRUE tmp___7 != 1024 [L605] COND TRUE tmp___7 != 512 [L606] COND TRUE __cil_tmp58 != 4294967294 [L607] COND TRUE l != 4294967266 [L642] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 440 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.0s, OverallIterations: 15, TraceHistogramMax: 4, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7956 SDtfs, 5500 SDslu, 8590 SDs, 0 SdLazy, 2072 SolverSat, 383 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1456occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 3762 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 3095 NumberOfCodeBlocks, 3095 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2816 ConstructedInterpolants, 0 QuantifiedInterpolants, 790206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 256/256 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...