/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:56:45,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:56:45,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:56:45,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:56:45,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:56:45,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:56:45,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:56:45,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:56:45,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:56:45,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:56:45,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:56:45,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:56:45,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:56:45,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:56:45,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:56:45,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:56:45,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:56:45,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:56:45,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:56:45,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:56:45,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:56:45,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:56:45,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:56:45,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:56:45,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:56:45,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:56:45,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:56:45,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:56:45,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:56:45,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:56:45,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:56:45,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:56:45,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:56:45,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:56:45,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:56:45,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:56:45,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:56:45,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:56:45,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:56:45,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:56:45,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:56:45,704 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:56:45,749 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:56:45,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:56:45,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:56:45,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:56:45,751 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:56:45,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:56:45,752 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:56:45,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:56:45,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:56:45,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:56:45,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:56:45,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:56:45,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:56:45,754 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:56:45,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:56:45,755 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:56:45,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:56:45,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:56:45,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:56:45,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:56:45,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:56:45,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:56:45,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:56:45,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:56:45,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:56:45,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:56:45,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:56:45,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:56:45,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:56:45,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:56:46,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:56:46,217 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:56:46,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:56:46,223 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:56:46,224 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:56:46,225 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-25 00:56:46,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d018366a/62f9f6ca21214dbc9f0751add0223f40/FLAGa99344b65 [2020-09-25 00:56:46,915 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:56:46,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-25 00:56:46,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d018366a/62f9f6ca21214dbc9f0751add0223f40/FLAGa99344b65 [2020-09-25 00:56:47,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d018366a/62f9f6ca21214dbc9f0751add0223f40 [2020-09-25 00:56:47,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:56:47,197 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:56:47,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:56:47,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:56:47,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:56:47,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46088d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47, skipping insertion in model container [2020-09-25 00:56:47,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:56:47,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:56:47,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:56:47,594 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:56:47,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:56:47,758 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:56:47,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47 WrapperNode [2020-09-25 00:56:47,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:56:47,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:56:47,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:56:47,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:56:47,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... [2020-09-25 00:56:47,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:56:47,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:56:47,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:56:47,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:56:47,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:56:47,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:56:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:56:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 00:56:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:56:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:56:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 00:56:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:56:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 00:56:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 00:56:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:56:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:56:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:56:48,175 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 00:56:48,869 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 00:56:48,870 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 00:56:48,888 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:56:48,888 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 00:56:48,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:56:48 BoogieIcfgContainer [2020-09-25 00:56:48,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:56:48,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:56:48,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:56:48,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:56:48,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:56:47" (1/3) ... [2020-09-25 00:56:48,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fe7f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:56:48, skipping insertion in model container [2020-09-25 00:56:48,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:47" (2/3) ... [2020-09-25 00:56:48,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fe7f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:56:48, skipping insertion in model container [2020-09-25 00:56:48,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:56:48" (3/3) ... [2020-09-25 00:56:48,912 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_13.cil.c [2020-09-25 00:56:48,928 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:56:48,944 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:56:48,965 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:56:49,000 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:56:49,001 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:56:49,001 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:56:49,001 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:56:49,001 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:56:49,001 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:56:49,001 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:56:49,002 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:56:49,034 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states. [2020-09-25 00:56:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 00:56:49,054 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:49,056 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] [2020-09-25 00:56:49,056 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:49,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:49,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1103530067, now seen corresponding path program 1 times [2020-09-25 00:56:49,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:49,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547627509] [2020-09-25 00:56:49,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:49,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:49,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:49,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:50,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:50,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:50,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 00:56:50,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:56:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1487 [2020-09-25 00:56:50,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:50,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:50,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-09-25 00:56:50,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:56:50,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:56:50,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:50,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:50,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:50,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:50,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:50,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:56:50,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:50,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:50,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:56:50,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547627509] [2020-09-25 00:56:50,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:50,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:50,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292860993] [2020-09-25 00:56:50,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:50,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:50,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:50,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:50,974 INFO L87 Difference]: Start difference. First operand 440 states. Second operand 3 states. [2020-09-25 00:56:51,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:51,339 INFO L93 Difference]: Finished difference Result 801 states and 1062 transitions. [2020-09-25 00:56:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:51,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-09-25 00:56:51,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:51,365 INFO L225 Difference]: With dead ends: 801 [2020-09-25 00:56:51,365 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 00:56:51,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 00:56:51,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 419. [2020-09-25 00:56:51,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-09-25 00:56:51,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 500 transitions. [2020-09-25 00:56:51,455 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 500 transitions. Word has length 160 [2020-09-25 00:56:51,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:51,456 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 500 transitions. [2020-09-25 00:56:51,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:51,457 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 500 transitions. [2020-09-25 00:56:51,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 00:56:51,467 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:51,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:51,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:56:51,468 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:51,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:51,468 INFO L82 PathProgramCache]: Analyzing trace with hash 732761503, now seen corresponding path program 1 times [2020-09-25 00:56:51,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:51,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912060107] [2020-09-25 00:56:51,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:51,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:51,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:51,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:52,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:52,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:52,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 00:56:52,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:56:52,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-25 00:56:52,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-25 00:56:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:56:52,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:52,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:52,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:52,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:52,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:52,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:52,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:56:52,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:52,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:56:52,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912060107] [2020-09-25 00:56:52,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:52,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:52,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148533208] [2020-09-25 00:56:52,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:52,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:52,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:52,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:52,602 INFO L87 Difference]: Start difference. First operand 419 states and 500 transitions. Second operand 3 states. [2020-09-25 00:56:52,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:52,860 INFO L93 Difference]: Finished difference Result 768 states and 969 transitions. [2020-09-25 00:56:52,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:52,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-09-25 00:56:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:52,866 INFO L225 Difference]: With dead ends: 768 [2020-09-25 00:56:52,867 INFO L226 Difference]: Without dead ends: 477 [2020-09-25 00:56:52,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:52,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2020-09-25 00:56:52,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 473. [2020-09-25 00:56:52,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-09-25 00:56:52,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 564 transitions. [2020-09-25 00:56:52,906 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 564 transitions. Word has length 165 [2020-09-25 00:56:52,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:52,907 INFO L479 AbstractCegarLoop]: Abstraction has 473 states and 564 transitions. [2020-09-25 00:56:52,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:52,907 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 564 transitions. [2020-09-25 00:56:52,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 00:56:52,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:52,910 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] [2020-09-25 00:56:52,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:56:52,910 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:52,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:52,911 INFO L82 PathProgramCache]: Analyzing trace with hash -296204506, now seen corresponding path program 1 times [2020-09-25 00:56:52,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:52,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170724510] [2020-09-25 00:56:52,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:52,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:53,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:53,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:53,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:53,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:53,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:54,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:54,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:54,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 00:56:54,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:56:54,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1849 [2020-09-25 00:56:54,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:54,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 00:56:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:56:54,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:54,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:54,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:54,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:54,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:54,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:54,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:56:54,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:54,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:54,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:54,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:56:54,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170724510] [2020-09-25 00:56:54,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:54,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:54,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138662220] [2020-09-25 00:56:54,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:54,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:54,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:54,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:54,874 INFO L87 Difference]: Start difference. First operand 473 states and 564 transitions. Second operand 3 states. [2020-09-25 00:56:55,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:55,150 INFO L93 Difference]: Finished difference Result 868 states and 1086 transitions. [2020-09-25 00:56:55,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:55,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-09-25 00:56:55,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:55,155 INFO L225 Difference]: With dead ends: 868 [2020-09-25 00:56:55,156 INFO L226 Difference]: Without dead ends: 523 [2020-09-25 00:56:55,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:55,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-09-25 00:56:55,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 501. [2020-09-25 00:56:55,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-25 00:56:55,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 604 transitions. [2020-09-25 00:56:55,183 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 604 transitions. Word has length 166 [2020-09-25 00:56:55,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:55,184 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 604 transitions. [2020-09-25 00:56:55,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:55,184 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 604 transitions. [2020-09-25 00:56:55,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 00:56:55,187 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:55,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:55,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:56:55,188 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:55,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:55,188 INFO L82 PathProgramCache]: Analyzing trace with hash -466072829, now seen corresponding path program 1 times [2020-09-25 00:56:55,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:55,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983722305] [2020-09-25 00:56:55,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:55,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:55,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:55,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:55,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:56,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:56,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-25 00:56:56,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:56:56,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1247 [2020-09-25 00:56:56,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:56,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:56,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 00:56:56,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:56:56,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:56,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:56,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:56,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:56,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:56,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:56,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:56:56,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:56,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:56,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:56,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:56,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:56:56,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983722305] [2020-09-25 00:56:56,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:56,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:56,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818311117] [2020-09-25 00:56:56,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:56,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:56,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:56,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:56,564 INFO L87 Difference]: Start difference. First operand 501 states and 604 transitions. Second operand 3 states. [2020-09-25 00:56:56,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:56,820 INFO L93 Difference]: Finished difference Result 926 states and 1170 transitions. [2020-09-25 00:56:56,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:56,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-09-25 00:56:56,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:56,826 INFO L225 Difference]: With dead ends: 926 [2020-09-25 00:56:56,826 INFO L226 Difference]: Without dead ends: 553 [2020-09-25 00:56:56,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:56,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-09-25 00:56:56,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 530. [2020-09-25 00:56:56,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-09-25 00:56:56,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 648 transitions. [2020-09-25 00:56:56,846 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 648 transitions. Word has length 169 [2020-09-25 00:56:56,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:56,847 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 648 transitions. [2020-09-25 00:56:56,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:56,847 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 648 transitions. [2020-09-25 00:56:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 00:56:56,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:56,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:56,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:56:56,850 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:56,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:56,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1130390032, now seen corresponding path program 1 times [2020-09-25 00:56:56,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:56,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426338276] [2020-09-25 00:56:56,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:56,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:56,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:57,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:57,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:57,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 00:56:57,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:56:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 599 [2020-09-25 00:56:57,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-25 00:56:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:56:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:57,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:57,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:57,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:57,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:57,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:57,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:56:57,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:57,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:57,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:57,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:57,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:56:57,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426338276] [2020-09-25 00:56:57,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:57,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:57,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376639011] [2020-09-25 00:56:57,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:57,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:57,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:57,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:57,576 INFO L87 Difference]: Start difference. First operand 530 states and 648 transitions. Second operand 3 states. [2020-09-25 00:56:57,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:57,673 INFO L93 Difference]: Finished difference Result 1302 states and 1648 transitions. [2020-09-25 00:56:57,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:57,674 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-09-25 00:56:57,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:57,679 INFO L225 Difference]: With dead ends: 1302 [2020-09-25 00:56:57,679 INFO L226 Difference]: Without dead ends: 912 [2020-09-25 00:56:57,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:57,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-09-25 00:56:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 910. [2020-09-25 00:56:57,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 910 states. [2020-09-25 00:56:57,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1134 transitions. [2020-09-25 00:56:57,751 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1134 transitions. Word has length 170 [2020-09-25 00:56:57,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:57,752 INFO L479 AbstractCegarLoop]: Abstraction has 910 states and 1134 transitions. [2020-09-25 00:56:57,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:57,752 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1134 transitions. [2020-09-25 00:56:57,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 00:56:57,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:57,755 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] [2020-09-25 00:56:57,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:56:57,755 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:57,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1758330393, now seen corresponding path program 1 times [2020-09-25 00:56:57,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:57,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53292683] [2020-09-25 00:56:57,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:57,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:57,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:59,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 00:56:59,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:56:59,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1691 [2020-09-25 00:56:59,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 00:56:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:56:59,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:59,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:59,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:59,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:59,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:59,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:56:59,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:59,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:59,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:56:59,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53292683] [2020-09-25 00:56:59,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:59,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:59,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43219398] [2020-09-25 00:56:59,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:59,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:59,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:59,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:59,564 INFO L87 Difference]: Start difference. First operand 910 states and 1134 transitions. Second operand 3 states. [2020-09-25 00:56:59,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:59,873 INFO L93 Difference]: Finished difference Result 1792 states and 2316 transitions. [2020-09-25 00:56:59,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:59,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-09-25 00:56:59,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:59,881 INFO L225 Difference]: With dead ends: 1792 [2020-09-25 00:56:59,881 INFO L226 Difference]: Without dead ends: 1022 [2020-09-25 00:56:59,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:59,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2020-09-25 00:56:59,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1006. [2020-09-25 00:56:59,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2020-09-25 00:56:59,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1248 transitions. [2020-09-25 00:56:59,923 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1248 transitions. Word has length 171 [2020-09-25 00:56:59,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:59,924 INFO L479 AbstractCegarLoop]: Abstraction has 1006 states and 1248 transitions. [2020-09-25 00:56:59,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:59,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1248 transitions. [2020-09-25 00:56:59,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 00:56:59,929 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:59,930 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] [2020-09-25 00:56:59,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:56:59,930 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:59,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:59,931 INFO L82 PathProgramCache]: Analyzing trace with hash 469342649, now seen corresponding path program 1 times [2020-09-25 00:56:59,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:59,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629195827] [2020-09-25 00:56:59,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:59,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:01,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 00:57:01,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:57:01,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1837 [2020-09-25 00:57:01,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:01,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:01,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 00:57:01,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:57:01,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:01,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:01,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:01,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:01,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:01,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:01,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:01,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:01,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:01,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:01,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:01,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:01,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629195827] [2020-09-25 00:57:01,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:01,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:01,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616870736] [2020-09-25 00:57:01,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:01,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:01,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:01,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:01,857 INFO L87 Difference]: Start difference. First operand 1006 states and 1248 transitions. Second operand 3 states. [2020-09-25 00:57:02,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:02,120 INFO L93 Difference]: Finished difference Result 2007 states and 2570 transitions. [2020-09-25 00:57:02,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:02,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-09-25 00:57:02,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:02,127 INFO L225 Difference]: With dead ends: 2007 [2020-09-25 00:57:02,127 INFO L226 Difference]: Without dead ends: 1117 [2020-09-25 00:57:02,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:02,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2020-09-25 00:57:02,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1068. [2020-09-25 00:57:02,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2020-09-25 00:57:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1344 transitions. [2020-09-25 00:57:02,170 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1344 transitions. Word has length 171 [2020-09-25 00:57:02,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:02,171 INFO L479 AbstractCegarLoop]: Abstraction has 1068 states and 1344 transitions. [2020-09-25 00:57:02,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1344 transitions. [2020-09-25 00:57:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-09-25 00:57:02,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:02,174 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] [2020-09-25 00:57:02,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:57:02,174 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:02,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:02,175 INFO L82 PathProgramCache]: Analyzing trace with hash -978509581, now seen corresponding path program 1 times [2020-09-25 00:57:02,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:02,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079369777] [2020-09-25 00:57:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:02,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:03,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:04,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:04,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 00:57:04,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:57:04,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2302 [2020-09-25 00:57:04,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 00:57:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:57:04,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:04,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:04,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:04,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:04,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:04,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:04,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:04,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:04,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079369777] [2020-09-25 00:57:04,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:04,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:04,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243911858] [2020-09-25 00:57:04,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:04,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:04,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:04,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:04,574 INFO L87 Difference]: Start difference. First operand 1068 states and 1344 transitions. Second operand 3 states. [2020-09-25 00:57:04,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:04,913 INFO L93 Difference]: Finished difference Result 2177 states and 2822 transitions. [2020-09-25 00:57:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:04,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-09-25 00:57:04,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:04,923 INFO L225 Difference]: With dead ends: 2177 [2020-09-25 00:57:04,924 INFO L226 Difference]: Without dead ends: 1225 [2020-09-25 00:57:04,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:04,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2020-09-25 00:57:04,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1134. [2020-09-25 00:57:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1134 states. [2020-09-25 00:57:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1448 transitions. [2020-09-25 00:57:04,970 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1448 transitions. Word has length 173 [2020-09-25 00:57:04,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:04,971 INFO L479 AbstractCegarLoop]: Abstraction has 1134 states and 1448 transitions. [2020-09-25 00:57:04,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:04,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1448 transitions. [2020-09-25 00:57:04,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-09-25 00:57:04,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:04,977 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] [2020-09-25 00:57:04,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:57:04,977 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:04,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:04,978 INFO L82 PathProgramCache]: Analyzing trace with hash 310644027, now seen corresponding path program 1 times [2020-09-25 00:57:04,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:04,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533195423] [2020-09-25 00:57:04,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:05,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:05,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:05,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:05,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:05,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:06,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:06,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:08,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:08,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 00:57:08,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:57:08,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3006 [2020-09-25 00:57:08,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 00:57:08,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:57:08,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:08,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:08,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:08,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:08,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:08,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:08,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:08,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:08,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:08,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533195423] [2020-09-25 00:57:08,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:08,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:08,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746049147] [2020-09-25 00:57:08,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:08,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:08,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:08,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:08,148 INFO L87 Difference]: Start difference. First operand 1134 states and 1448 transitions. Second operand 3 states. [2020-09-25 00:57:08,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:08,483 INFO L93 Difference]: Finished difference Result 2240 states and 2943 transitions. [2020-09-25 00:57:08,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:08,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-09-25 00:57:08,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:08,494 INFO L225 Difference]: With dead ends: 2240 [2020-09-25 00:57:08,494 INFO L226 Difference]: Without dead ends: 1246 [2020-09-25 00:57:08,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:08,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2020-09-25 00:57:08,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1212. [2020-09-25 00:57:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1212 states. [2020-09-25 00:57:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1548 transitions. [2020-09-25 00:57:08,547 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1548 transitions. Word has length 173 [2020-09-25 00:57:08,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:08,548 INFO L479 AbstractCegarLoop]: Abstraction has 1212 states and 1548 transitions. [2020-09-25 00:57:08,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:08,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1548 transitions. [2020-09-25 00:57:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 00:57:08,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:08,555 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] [2020-09-25 00:57:08,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:57:08,555 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:08,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:08,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1230208187, now seen corresponding path program 1 times [2020-09-25 00:57:08,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:08,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786020211] [2020-09-25 00:57:08,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:08,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:08,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:08,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:08,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:09,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:09,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:09,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-09-25 00:57:09,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:57:09,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1122 [2020-09-25 00:57:09,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:57:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 00:57:09,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:57:09,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:09,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:09,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:09,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:09,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:09,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:09,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:09,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:09,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:09,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:09,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786020211] [2020-09-25 00:57:09,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:09,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:57:09,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985083817] [2020-09-25 00:57:09,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:57:09,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:09,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:57:09,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:57:09,769 INFO L87 Difference]: Start difference. First operand 1212 states and 1548 transitions. Second operand 4 states. [2020-09-25 00:57:10,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:10,054 INFO L93 Difference]: Finished difference Result 2424 states and 3115 transitions. [2020-09-25 00:57:10,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:57:10,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2020-09-25 00:57:10,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:10,063 INFO L225 Difference]: With dead ends: 2424 [2020-09-25 00:57:10,064 INFO L226 Difference]: Without dead ends: 1352 [2020-09-25 00:57:10,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:57:10,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2020-09-25 00:57:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1246. [2020-09-25 00:57:10,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1246 states. [2020-09-25 00:57:10,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1590 transitions. [2020-09-25 00:57:10,114 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1590 transitions. Word has length 175 [2020-09-25 00:57:10,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:10,115 INFO L479 AbstractCegarLoop]: Abstraction has 1246 states and 1590 transitions. [2020-09-25 00:57:10,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:57:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1590 transitions. [2020-09-25 00:57:10,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 00:57:10,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:10,122 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, 1, 1, 1, 1, 1] [2020-09-25 00:57:10,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 00:57:10,122 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:10,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:10,123 INFO L82 PathProgramCache]: Analyzing trace with hash -99229899, now seen corresponding path program 1 times [2020-09-25 00:57:10,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:10,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533736681] [2020-09-25 00:57:10,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:10,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:10,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:10,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:10,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:10,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:10,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:11,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:14,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:14,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 00:57:14,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:57:14,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4218 [2020-09-25 00:57:14,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-25 00:57:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:57:14,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:14,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:14,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:14,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:14,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:14,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:14,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:14,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:14,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:14,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533736681] [2020-09-25 00:57:14,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:14,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:14,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777063826] [2020-09-25 00:57:14,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:14,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:14,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:14,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:14,437 INFO L87 Difference]: Start difference. First operand 1246 states and 1590 transitions. Second operand 3 states. [2020-09-25 00:57:14,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:14,486 INFO L93 Difference]: Finished difference Result 2396 states and 3092 transitions. [2020-09-25 00:57:14,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:14,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-25 00:57:14,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:14,494 INFO L225 Difference]: With dead ends: 2396 [2020-09-25 00:57:14,494 INFO L226 Difference]: Without dead ends: 1290 [2020-09-25 00:57:14,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:14,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2020-09-25 00:57:14,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1284. [2020-09-25 00:57:14,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1284 states. [2020-09-25 00:57:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1634 transitions. [2020-09-25 00:57:14,539 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1634 transitions. Word has length 180 [2020-09-25 00:57:14,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:14,540 INFO L479 AbstractCegarLoop]: Abstraction has 1284 states and 1634 transitions. [2020-09-25 00:57:14,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:14,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1634 transitions. [2020-09-25 00:57:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 00:57:14,544 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:14,545 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, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:14,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 00:57:14,545 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:14,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:14,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1893768638, now seen corresponding path program 1 times [2020-09-25 00:57:14,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:14,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288514951] [2020-09-25 00:57:14,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:14,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:14,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:14,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:14,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:14,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-25 00:57:14,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:57:14,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-09-25 00:57:14,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:14,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:57:14,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 00:57:14,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-25 00:57:14,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:14,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:14,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:14,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:14,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:14,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:14,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:14,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:14,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:14,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:14,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:14,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:15,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:15,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288514951] [2020-09-25 00:57:15,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:15,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:57:15,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117950259] [2020-09-25 00:57:15,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:57:15,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:15,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:57:15,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:57:15,030 INFO L87 Difference]: Start difference. First operand 1284 states and 1634 transitions. Second operand 6 states. [2020-09-25 00:57:15,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:15,311 INFO L93 Difference]: Finished difference Result 2512 states and 3239 transitions. [2020-09-25 00:57:15,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:57:15,312 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-09-25 00:57:15,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:15,322 INFO L225 Difference]: With dead ends: 2512 [2020-09-25 00:57:15,322 INFO L226 Difference]: Without dead ends: 1368 [2020-09-25 00:57:15,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:57:15,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2020-09-25 00:57:15,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1336. [2020-09-25 00:57:15,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2020-09-25 00:57:15,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1698 transitions. [2020-09-25 00:57:15,372 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1698 transitions. Word has length 182 [2020-09-25 00:57:15,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:15,373 INFO L479 AbstractCegarLoop]: Abstraction has 1336 states and 1698 transitions. [2020-09-25 00:57:15,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:57:15,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1698 transitions. [2020-09-25 00:57:15,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 00:57:15,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:15,381 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:15,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 00:57:15,381 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:15,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:15,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1578833511, now seen corresponding path program 1 times [2020-09-25 00:57:15,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:15,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378752414] [2020-09-25 00:57:15,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:15,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:15,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:15,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:15,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:15,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 00:57:15,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:57:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-09-25 00:57:15,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:57:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 00:57:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:57:15,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:16,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:16,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:16,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:16,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:16,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:16,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:16,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:16,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378752414] [2020-09-25 00:57:16,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:16,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:57:16,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874785654] [2020-09-25 00:57:16,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:57:16,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:16,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:57:16,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:57:16,046 INFO L87 Difference]: Start difference. First operand 1336 states and 1698 transitions. Second operand 4 states. [2020-09-25 00:57:16,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:16,480 INFO L93 Difference]: Finished difference Result 3796 states and 4904 transitions. [2020-09-25 00:57:16,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:57:16,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 204 [2020-09-25 00:57:16,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:16,493 INFO L225 Difference]: With dead ends: 3796 [2020-09-25 00:57:16,494 INFO L226 Difference]: Without dead ends: 2600 [2020-09-25 00:57:16,497 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 [2020-09-25 00:57:16,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2020-09-25 00:57:16,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 1342. [2020-09-25 00:57:16,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1342 states. [2020-09-25 00:57:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1686 transitions. [2020-09-25 00:57:16,549 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1686 transitions. Word has length 204 [2020-09-25 00:57:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:16,550 INFO L479 AbstractCegarLoop]: Abstraction has 1342 states and 1686 transitions. [2020-09-25 00:57:16,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:57:16,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1686 transitions. [2020-09-25 00:57:16,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-25 00:57:16,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:16,555 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] [2020-09-25 00:57:16,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 00:57:16,556 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:16,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:16,556 INFO L82 PathProgramCache]: Analyzing trace with hash -2050919031, now seen corresponding path program 1 times [2020-09-25 00:57:16,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:16,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523420691] [2020-09-25 00:57:16,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 00:57:17,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:57:17,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-09-25 00:57:17,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:57:17,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 00:57:17,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:57:17,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:17,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:17,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:17,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:17,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:17,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:17,163 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 00:57:17,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523420691] [2020-09-25 00:57:17,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:17,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:57:17,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353762378] [2020-09-25 00:57:17,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:57:17,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:17,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:57:17,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:57:17,166 INFO L87 Difference]: Start difference. First operand 1342 states and 1686 transitions. Second operand 4 states. [2020-09-25 00:57:17,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:17,663 INFO L93 Difference]: Finished difference Result 4050 states and 5180 transitions. [2020-09-25 00:57:17,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:57:17,663 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 231 [2020-09-25 00:57:17,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:17,678 INFO L225 Difference]: With dead ends: 4050 [2020-09-25 00:57:17,678 INFO L226 Difference]: Without dead ends: 2848 [2020-09-25 00:57:17,681 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 [2020-09-25 00:57:17,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2020-09-25 00:57:17,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 1444. [2020-09-25 00:57:17,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1444 states. [2020-09-25 00:57:17,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1800 transitions. [2020-09-25 00:57:17,735 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1800 transitions. Word has length 231 [2020-09-25 00:57:17,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:17,736 INFO L479 AbstractCegarLoop]: Abstraction has 1444 states and 1800 transitions. [2020-09-25 00:57:17,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:57:17,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1800 transitions. [2020-09-25 00:57:17,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-25 00:57:17,741 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:17,741 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] [2020-09-25 00:57:17,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 00:57:17,741 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:17,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:17,742 INFO L82 PathProgramCache]: Analyzing trace with hash 834545961, now seen corresponding path program 1 times [2020-09-25 00:57:17,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:17,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951789705] [2020-09-25 00:57:17,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:18,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:18,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:18,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 00:57:18,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:57:18,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 736 [2020-09-25 00:57:18,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:18,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:57:18,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 00:57:18,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:57:18,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:18,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:18,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:18,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:18,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:18,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:18,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:18,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:18,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:18,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:18,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:18,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:18,588 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 00:57:18,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951789705] [2020-09-25 00:57:18,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:18,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:57:18,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592614311] [2020-09-25 00:57:18,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:57:18,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:18,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:57:18,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:57:18,591 INFO L87 Difference]: Start difference. First operand 1444 states and 1800 transitions. Second operand 4 states. [2020-09-25 00:57:19,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:19,040 INFO L93 Difference]: Finished difference Result 4136 states and 5230 transitions. [2020-09-25 00:57:19,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:57:19,041 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 231 [2020-09-25 00:57:19,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:19,059 INFO L225 Difference]: With dead ends: 4136 [2020-09-25 00:57:19,059 INFO L226 Difference]: Without dead ends: 2832 [2020-09-25 00:57:19,065 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 [2020-09-25 00:57:19,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2020-09-25 00:57:19,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 1450. [2020-09-25 00:57:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2020-09-25 00:57:19,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1784 transitions. [2020-09-25 00:57:19,142 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1784 transitions. Word has length 231 [2020-09-25 00:57:19,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:19,143 INFO L479 AbstractCegarLoop]: Abstraction has 1450 states and 1784 transitions. [2020-09-25 00:57:19,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:57:19,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1784 transitions. [2020-09-25 00:57:19,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-09-25 00:57:19,149 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:19,150 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] [2020-09-25 00:57:19,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 00:57:19,150 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:19,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:19,151 INFO L82 PathProgramCache]: Analyzing trace with hash -802530094, now seen corresponding path program 1 times [2020-09-25 00:57:19,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:19,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691456365] [2020-09-25 00:57:19,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:19,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:19,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:19,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-25 00:57:19,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:19,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 00:57:19,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:19,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:19,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-25 00:57:19,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:57:19,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:19,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:19,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:19,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:19,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:19,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:19,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:19,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:19,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-09-25 00:57:19,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691456365] [2020-09-25 00:57:19,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:19,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:19,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942993408] [2020-09-25 00:57:19,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:19,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:19,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:19,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:19,457 INFO L87 Difference]: Start difference. First operand 1450 states and 1784 transitions. Second operand 3 states. [2020-09-25 00:57:19,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:19,509 INFO L93 Difference]: Finished difference Result 2126 states and 2630 transitions. [2020-09-25 00:57:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:19,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2020-09-25 00:57:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:19,514 INFO L225 Difference]: With dead ends: 2126 [2020-09-25 00:57:19,514 INFO L226 Difference]: Without dead ends: 816 [2020-09-25 00:57:19,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:19,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2020-09-25 00:57:19,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2020-09-25 00:57:19,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2020-09-25 00:57:19,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 989 transitions. [2020-09-25 00:57:19,541 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 989 transitions. Word has length 263 [2020-09-25 00:57:19,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:19,542 INFO L479 AbstractCegarLoop]: Abstraction has 816 states and 989 transitions. [2020-09-25 00:57:19,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:19,542 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 989 transitions. [2020-09-25 00:57:19,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-09-25 00:57:19,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:19,546 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] [2020-09-25 00:57:19,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 00:57:19,547 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:19,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:19,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1418202927, now seen corresponding path program 1 times [2020-09-25 00:57:19,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:19,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165798716] [2020-09-25 00:57:19,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:19,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:19,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:19,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-09-25 00:57:19,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:19,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 00:57:19,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 00:57:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:57:19,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:19,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:19,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:19,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:19,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:19,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:19,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:19,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:19,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:19,811 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-09-25 00:57:19,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165798716] [2020-09-25 00:57:19,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:19,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:19,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007747800] [2020-09-25 00:57:19,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:19,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:19,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:19,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:19,814 INFO L87 Difference]: Start difference. First operand 816 states and 989 transitions. Second operand 3 states. [2020-09-25 00:57:19,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:19,869 INFO L93 Difference]: Finished difference Result 1516 states and 1865 transitions. [2020-09-25 00:57:19,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:19,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-09-25 00:57:19,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:19,874 INFO L225 Difference]: With dead ends: 1516 [2020-09-25 00:57:19,874 INFO L226 Difference]: Without dead ends: 856 [2020-09-25 00:57:19,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:19,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2020-09-25 00:57:19,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 856. [2020-09-25 00:57:19,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 856 states. [2020-09-25 00:57:19,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1035 transitions. [2020-09-25 00:57:19,899 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1035 transitions. Word has length 264 [2020-09-25 00:57:19,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:19,899 INFO L479 AbstractCegarLoop]: Abstraction has 856 states and 1035 transitions. [2020-09-25 00:57:19,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:19,899 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1035 transitions. [2020-09-25 00:57:19,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-25 00:57:19,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:19,904 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] [2020-09-25 00:57:19,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 00:57:19,904 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:19,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:19,905 INFO L82 PathProgramCache]: Analyzing trace with hash -196875119, now seen corresponding path program 1 times [2020-09-25 00:57:19,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:19,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145057971] [2020-09-25 00:57:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:57:19,936 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:57:19,936 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:57:19,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 00:57:19,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:57:19 BoogieIcfgContainer [2020-09-25 00:57:19,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:57:19,979 INFO L168 Benchmark]: Toolchain (without parser) took 32783.73 ms. Allocated memory was 140.5 MB in the beginning and 559.4 MB in the end (delta: 418.9 MB). Free memory was 101.8 MB in the beginning and 244.8 MB in the end (delta: -143.1 MB). Peak memory consumption was 275.8 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:19,979 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 00:57:19,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.14 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 178.4 MB in the end (delta: -77.1 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:19,981 INFO L168 Benchmark]: Boogie Preprocessor took 74.71 ms. Allocated memory is still 203.4 MB. Free memory was 178.4 MB in the beginning and 175.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:19,981 INFO L168 Benchmark]: RCFGBuilder took 1063.20 ms. Allocated memory is still 203.4 MB. Free memory was 175.5 MB in the beginning and 102.8 MB in the end (delta: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:19,982 INFO L168 Benchmark]: TraceAbstraction took 31076.14 ms. Allocated memory was 203.4 MB in the beginning and 559.4 MB in the end (delta: 356.0 MB). Free memory was 102.1 MB in the beginning and 244.8 MB in the end (delta: -142.7 MB). Peak memory consumption was 213.3 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:19,985 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 561.14 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 178.4 MB in the end (delta: -77.1 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.71 ms. Allocated memory is still 203.4 MB. Free memory was 178.4 MB in the beginning and 175.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1063.20 ms. Allocated memory is still 203.4 MB. Free memory was 175.5 MB in the beginning and 102.8 MB in the end (delta: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31076.14 ms. Allocated memory was 203.4 MB in the beginning and 559.4 MB in the end (delta: 356.0 MB). Free memory was 102.1 MB in the beginning and 244.8 MB in the end (delta: -142.7 MB). Peak memory consumption was 213.3 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: 30.9s, OverallIterations: 18, TraceHistogramMax: 4, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9396 SDtfs, 3701 SDslu, 9386 SDs, 0 SdLazy, 2314 SolverSat, 422 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 17 MinimizatonAttempts, 4431 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.7s InterpolantComputationTime, 3513 NumberOfCodeBlocks, 3513 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3231 ConstructedInterpolants, 0 QuantifiedInterpolants, 809005 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 301/301 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...