/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 12:18:18,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:18:18,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:18:18,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:18:18,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:18:18,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:18:18,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:18:18,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:18:18,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:18:18,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:18:18,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:18:18,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:18:18,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:18:18,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:18:18,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:18:18,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:18:18,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:18:18,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:18:18,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:18:18,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:18:18,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:18:18,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:18:18,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:18:18,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:18:18,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:18:18,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:18:18,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:18:18,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:18:18,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:18:18,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:18:18,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:18:18,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:18:18,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:18:18,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:18:18,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:18:18,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:18:18,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:18:18,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:18:18,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:18:18,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:18:18,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:18:18,544 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 12:18:18,593 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:18:18,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:18:18,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:18:18,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:18:18,595 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:18:18,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:18:18,595 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:18:18,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:18:18,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:18:18,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:18:18,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:18:18,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:18:18,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:18:18,599 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:18:18,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:18:18,600 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:18:18,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:18:18,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:18:18,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:18:18,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:18:18,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:18:18,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:18:18,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:18:18,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:18:18,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:18:18,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:18:18,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:18:18,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:18:18,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:18:18,603 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:18:19,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:18:19,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:18:19,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:18:19,049 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:18:19,050 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:18:19,051 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-25 12:18:19,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ad3206e3/3b6c4728627e46cba5cfdbc0f28b02aa/FLAG2a2d502eb [2020-09-25 12:18:19,755 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:18:19,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-25 12:18:19,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ad3206e3/3b6c4728627e46cba5cfdbc0f28b02aa/FLAG2a2d502eb [2020-09-25 12:18:20,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ad3206e3/3b6c4728627e46cba5cfdbc0f28b02aa [2020-09-25 12:18:20,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:18:20,061 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:18:20,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:18:20,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:18:20,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:18:20,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:18:20" (1/1) ... [2020-09-25 12:18:20,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45456bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:20, skipping insertion in model container [2020-09-25 12:18:20,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:18:20" (1/1) ... [2020-09-25 12:18:20,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:18:20,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:18:20,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:18:20,545 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:18:20,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:18:20,730 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:18:20,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:20 WrapperNode [2020-09-25 12:18:20,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:18:20,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:18:20,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:18:20,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:18:20,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:20" (1/1) ... [2020-09-25 12:18:20,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:20" (1/1) ... [2020-09-25 12:18:20,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:20" (1/1) ... [2020-09-25 12:18:20,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:20" (1/1) ... [2020-09-25 12:18:20,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:20" (1/1) ... [2020-09-25 12:18:20,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:20" (1/1) ... [2020-09-25 12:18:20,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:20" (1/1) ... [2020-09-25 12:18:20,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:18:20,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:18:20,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:18:20,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:18:20,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:20" (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 12:18:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:18:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:18:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 12:18:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:18:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:18:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 12:18:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:18:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 12:18:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 12:18:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:18:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:18:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:18:21,119 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 12:18:21,846 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 12:18:21,847 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 12:18:21,864 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:18:21,864 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 12:18:21,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:18:21 BoogieIcfgContainer [2020-09-25 12:18:21,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:18:21,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:18:21,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:18:21,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:18:21,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:18:20" (1/3) ... [2020-09-25 12:18:21,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b87111f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:18:21, skipping insertion in model container [2020-09-25 12:18:21,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:20" (2/3) ... [2020-09-25 12:18:21,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b87111f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:18:21, skipping insertion in model container [2020-09-25 12:18:21,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:18:21" (3/3) ... [2020-09-25 12:18:21,883 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_13.cil.c [2020-09-25 12:18:21,895 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:18:21,906 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:18:21,929 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:18:21,961 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:18:21,961 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:18:21,961 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:18:21,962 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:18:21,962 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:18:21,962 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:18:21,962 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:18:21,962 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:18:21,993 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states. [2020-09-25 12:18:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 12:18:22,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:22,014 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 12:18:22,015 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:22,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:22,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1103530067, now seen corresponding path program 1 times [2020-09-25 12:18:22,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:22,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091505795] [2020-09-25 12:18:22,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:22,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:22,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:22,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:23,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:23,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:23,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 12:18:23,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:18:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1323 [2020-09-25 12:18:23,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:23,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:18:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 12:18:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-25 12:18:23,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:18:23,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:23,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:23,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:23,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:23,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:23,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:18:23,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:23,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:23,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:18:23,860 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 12:18:23,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091505795] [2020-09-25 12:18:23,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:23,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:18:23,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204691268] [2020-09-25 12:18:23,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:18:23,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:23,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:18:23,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:18:23,905 INFO L87 Difference]: Start difference. First operand 440 states. Second operand 6 states. [2020-09-25 12:18:24,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:24,351 INFO L93 Difference]: Finished difference Result 782 states and 1019 transitions. [2020-09-25 12:18:24,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:18:24,353 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-25 12:18:24,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:24,377 INFO L225 Difference]: With dead ends: 782 [2020-09-25 12:18:24,378 INFO L226 Difference]: Without dead ends: 441 [2020-09-25 12:18:24,386 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 12:18:24,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-09-25 12:18:24,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 430. [2020-09-25 12:18:24,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-09-25 12:18:24,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 515 transitions. [2020-09-25 12:18:24,479 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 515 transitions. Word has length 160 [2020-09-25 12:18:24,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:24,480 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 515 transitions. [2020-09-25 12:18:24,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:18:24,481 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 515 transitions. [2020-09-25 12:18:24,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 12:18:24,484 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:24,484 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 12:18:24,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:18:24,485 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:24,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:24,486 INFO L82 PathProgramCache]: Analyzing trace with hash -466072829, now seen corresponding path program 1 times [2020-09-25 12:18:24,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:24,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867179022] [2020-09-25 12:18:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:24,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:24,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:24,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:24,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:25,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:25,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-25 12:18:25,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:18:25,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1433 [2020-09-25 12:18:25,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:25,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:25,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:18:25,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 12:18:25,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-25 12:18:25,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:18:26,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:26,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:26,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:26,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:26,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:26,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:18:26,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:26,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:26,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:26,159 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 12:18:26,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867179022] [2020-09-25 12:18:26,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:26,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:18:26,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176782857] [2020-09-25 12:18:26,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:18:26,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:26,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:18:26,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:18:26,175 INFO L87 Difference]: Start difference. First operand 430 states and 515 transitions. Second operand 7 states. [2020-09-25 12:18:26,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:26,670 INFO L93 Difference]: Finished difference Result 876 states and 1103 transitions. [2020-09-25 12:18:26,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:18:26,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-09-25 12:18:26,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:26,678 INFO L225 Difference]: With dead ends: 876 [2020-09-25 12:18:26,678 INFO L226 Difference]: Without dead ends: 574 [2020-09-25 12:18:26,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:18:26,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-09-25 12:18:26,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 539. [2020-09-25 12:18:26,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-09-25 12:18:26,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 645 transitions. [2020-09-25 12:18:26,714 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 645 transitions. Word has length 169 [2020-09-25 12:18:26,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:26,715 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 645 transitions. [2020-09-25 12:18:26,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:18:26,715 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 645 transitions. [2020-09-25 12:18:26,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 12:18:26,720 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:26,720 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:26,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:18:26,721 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:26,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:26,721 INFO L82 PathProgramCache]: Analyzing trace with hash -139011456, now seen corresponding path program 1 times [2020-09-25 12:18:26,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:26,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316324121] [2020-09-25 12:18:26,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:26,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:26,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:26,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:27,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:27,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:27,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:27,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:28,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:28,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:28,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 12:18:28,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:18:28,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1823 [2020-09-25 12:18:28,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:28,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:28,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-25 12:18:28,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 12:18:28,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:28,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:28,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:28,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:28,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:28,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:28,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:28,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:28,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:28,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:28,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:28,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:28,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 12:18:28,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316324121] [2020-09-25 12:18:28,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:28,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:28,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247191853] [2020-09-25 12:18:28,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:28,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:28,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:28,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:28,668 INFO L87 Difference]: Start difference. First operand 539 states and 645 transitions. Second operand 3 states. [2020-09-25 12:18:28,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:28,727 INFO L93 Difference]: Finished difference Result 954 states and 1163 transitions. [2020-09-25 12:18:28,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:28,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-09-25 12:18:28,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:28,731 INFO L225 Difference]: With dead ends: 954 [2020-09-25 12:18:28,732 INFO L226 Difference]: Without dead ends: 555 [2020-09-25 12:18:28,734 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 12:18:28,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-25 12:18:28,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2020-09-25 12:18:28,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-09-25 12:18:28,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 661 transitions. [2020-09-25 12:18:28,755 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 661 transitions. Word has length 191 [2020-09-25 12:18:28,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:28,755 INFO L479 AbstractCegarLoop]: Abstraction has 555 states and 661 transitions. [2020-09-25 12:18:28,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:28,756 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 661 transitions. [2020-09-25 12:18:28,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 12:18:28,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:28,760 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 12:18:28,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:18:28,760 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:28,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:28,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1120886307, now seen corresponding path program 1 times [2020-09-25 12:18:28,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:28,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635777645] [2020-09-25 12:18:28,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:28,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:28,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:29,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:29,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:29,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:29,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:29,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:29,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 12:18:29,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:18:29,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 984 [2020-09-25 12:18:29,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:29,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:18:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-09-25 12:18:29,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 12:18:29,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:29,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:29,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:29,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:29,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:29,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:29,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:29,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:29,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:29,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:29,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:29,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:29,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:29,899 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 12:18:29,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635777645] [2020-09-25 12:18:29,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:29,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:18:29,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543914019] [2020-09-25 12:18:29,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:18:29,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:29,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:18:29,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:18:29,902 INFO L87 Difference]: Start difference. First operand 555 states and 661 transitions. Second operand 4 states. [2020-09-25 12:18:30,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:30,142 INFO L93 Difference]: Finished difference Result 1003 states and 1220 transitions. [2020-09-25 12:18:30,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:18:30,142 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2020-09-25 12:18:30,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:30,147 INFO L225 Difference]: With dead ends: 1003 [2020-09-25 12:18:30,147 INFO L226 Difference]: Without dead ends: 604 [2020-09-25 12:18:30,149 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 12:18:30,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-09-25 12:18:30,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 587. [2020-09-25 12:18:30,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-09-25 12:18:30,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 700 transitions. [2020-09-25 12:18:30,172 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 700 transitions. Word has length 192 [2020-09-25 12:18:30,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:30,173 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 700 transitions. [2020-09-25 12:18:30,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:18:30,173 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 700 transitions. [2020-09-25 12:18:30,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 12:18:30,177 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:30,177 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:30,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:18:30,177 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:30,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:30,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1348673300, now seen corresponding path program 1 times [2020-09-25 12:18:30,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:30,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692092609] [2020-09-25 12:18:30,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:30,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:30,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:30,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:30,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:30,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:30,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-25 12:18:30,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:18:30,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-09-25 12:18:30,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:30,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:30,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:18:30,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 12:18:30,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 12:18:30,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:30,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:30,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:30,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:30,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:30,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:30,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:30,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:30,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:30,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:30,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:30,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:30,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:30,929 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:30,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692092609] [2020-09-25 12:18:30,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:18:30,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 12:18:30,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135769162] [2020-09-25 12:18:30,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:18:30,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:30,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:18:30,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:18:30,933 INFO L87 Difference]: Start difference. First operand 587 states and 700 transitions. Second operand 4 states. [2020-09-25 12:18:31,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:31,316 INFO L93 Difference]: Finished difference Result 1236 states and 1539 transitions. [2020-09-25 12:18:31,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:18:31,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-09-25 12:18:31,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:31,323 INFO L225 Difference]: With dead ends: 1236 [2020-09-25 12:18:31,324 INFO L226 Difference]: Without dead ends: 789 [2020-09-25 12:18:31,326 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 12:18:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2020-09-25 12:18:31,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 693. [2020-09-25 12:18:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-09-25 12:18:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 836 transitions. [2020-09-25 12:18:31,365 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 836 transitions. Word has length 195 [2020-09-25 12:18:31,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:31,366 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 836 transitions. [2020-09-25 12:18:31,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:18:31,367 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 836 transitions. [2020-09-25 12:18:31,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 12:18:31,372 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:31,372 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 12:18:31,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:18:31,373 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:31,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:31,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1578833511, now seen corresponding path program 1 times [2020-09-25 12:18:31,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:31,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896780808] [2020-09-25 12:18:31,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:31,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:31,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:31,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:32,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:32,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 12:18:32,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:18:32,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-09-25 12:18:32,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:32,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:32,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:32,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 12:18:32,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:18:32,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:32,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:32,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:32,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:32,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:32,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:32,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:32,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:32,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:32,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:32,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:32,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:18:32,244 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 12:18:32,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896780808] [2020-09-25 12:18:32,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:32,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:32,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691880064] [2020-09-25 12:18:32,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:32,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:32,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:32,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:32,248 INFO L87 Difference]: Start difference. First operand 693 states and 836 transitions. Second operand 3 states. [2020-09-25 12:18:32,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:32,368 INFO L93 Difference]: Finished difference Result 1756 states and 2177 transitions. [2020-09-25 12:18:32,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:32,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-09-25 12:18:32,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:32,377 INFO L225 Difference]: With dead ends: 1756 [2020-09-25 12:18:32,377 INFO L226 Difference]: Without dead ends: 1219 [2020-09-25 12:18:32,379 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 12:18:32,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-09-25 12:18:32,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1217. [2020-09-25 12:18:32,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1217 states. [2020-09-25 12:18:32,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1492 transitions. [2020-09-25 12:18:32,443 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1492 transitions. Word has length 204 [2020-09-25 12:18:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:32,444 INFO L479 AbstractCegarLoop]: Abstraction has 1217 states and 1492 transitions. [2020-09-25 12:18:32,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:32,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1492 transitions. [2020-09-25 12:18:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 12:18:32,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:32,449 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:32,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:18:32,449 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:32,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:32,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1519790942, now seen corresponding path program 1 times [2020-09-25 12:18:32,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:32,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872271067] [2020-09-25 12:18:32,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:32,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:32,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:32,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:32,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:33,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:33,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 12:18:33,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:18:33,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1308 [2020-09-25 12:18:33,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:33,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:33,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:33,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 12:18:33,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 12:18:33,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:33,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:33,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:33,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:33,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:33,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:33,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:33,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:33,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:33,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:33,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:33,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:33,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:33,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872271067] [2020-09-25 12:18:33,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:33,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:33,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288784781] [2020-09-25 12:18:33,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:33,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:33,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:33,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:33,890 INFO L87 Difference]: Start difference. First operand 1217 states and 1492 transitions. Second operand 3 states. [2020-09-25 12:18:33,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:33,979 INFO L93 Difference]: Finished difference Result 2270 states and 2813 transitions. [2020-09-25 12:18:33,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:33,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-09-25 12:18:33,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:33,986 INFO L225 Difference]: With dead ends: 2270 [2020-09-25 12:18:33,987 INFO L226 Difference]: Without dead ends: 1209 [2020-09-25 12:18:33,990 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 12:18:33,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2020-09-25 12:18:34,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1207. [2020-09-25 12:18:34,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2020-09-25 12:18:34,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1475 transitions. [2020-09-25 12:18:34,032 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1475 transitions. Word has length 205 [2020-09-25 12:18:34,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:34,033 INFO L479 AbstractCegarLoop]: Abstraction has 1207 states and 1475 transitions. [2020-09-25 12:18:34,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:34,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1475 transitions. [2020-09-25 12:18:34,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-25 12:18:34,037 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:34,037 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:34,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:18:34,038 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:34,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:34,039 INFO L82 PathProgramCache]: Analyzing trace with hash 27680960, now seen corresponding path program 1 times [2020-09-25 12:18:34,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:34,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040044355] [2020-09-25 12:18:34,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:34,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:34,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:34,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:34,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:34,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-25 12:18:34,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:18:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 801 [2020-09-25 12:18:34,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:34,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:18:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 12:18:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 12:18:34,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:34,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:34,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:34,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:34,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:34,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:34,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:34,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:34,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:34,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:34,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:34,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:34,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:35,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040044355] [2020-09-25 12:18:35,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:18:35,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:18:35,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568580480] [2020-09-25 12:18:35,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:18:35,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:35,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:18:35,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:18:35,018 INFO L87 Difference]: Start difference. First operand 1207 states and 1475 transitions. Second operand 6 states. [2020-09-25 12:18:35,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:35,961 INFO L93 Difference]: Finished difference Result 5262 states and 6576 transitions. [2020-09-25 12:18:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 12:18:35,962 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 206 [2020-09-25 12:18:35,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:35,983 INFO L225 Difference]: With dead ends: 5262 [2020-09-25 12:18:35,983 INFO L226 Difference]: Without dead ends: 4211 [2020-09-25 12:18:35,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:18:35,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4211 states. [2020-09-25 12:18:36,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4211 to 1709. [2020-09-25 12:18:36,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1709 states. [2020-09-25 12:18:36,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2129 transitions. [2020-09-25 12:18:36,071 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2129 transitions. Word has length 206 [2020-09-25 12:18:36,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:36,071 INFO L479 AbstractCegarLoop]: Abstraction has 1709 states and 2129 transitions. [2020-09-25 12:18:36,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:18:36,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2129 transitions. [2020-09-25 12:18:36,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 12:18:36,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:36,077 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 12:18:36,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:18:36,077 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:36,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:36,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1995787975, now seen corresponding path program 1 times [2020-09-25 12:18:36,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:36,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965315735] [2020-09-25 12:18:36,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:36,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:36,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:36,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:36,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-25 12:18:36,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:18:36,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-25 12:18:36,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:36,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:36,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:36,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-25 12:18:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 12:18:36,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:36,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:36,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:36,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:36,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:36,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:36,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:36,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:36,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:36,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:36,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:36,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:36,464 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 12:18:36,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965315735] [2020-09-25 12:18:36,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:36,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:36,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536329159] [2020-09-25 12:18:36,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:36,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:36,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:36,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:36,467 INFO L87 Difference]: Start difference. First operand 1709 states and 2129 transitions. Second operand 3 states. [2020-09-25 12:18:36,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:36,587 INFO L93 Difference]: Finished difference Result 4044 states and 5102 transitions. [2020-09-25 12:18:36,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:36,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-25 12:18:36,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:36,598 INFO L225 Difference]: With dead ends: 4044 [2020-09-25 12:18:36,599 INFO L226 Difference]: Without dead ends: 2491 [2020-09-25 12:18:36,602 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 12:18:36,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2020-09-25 12:18:36,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2489. [2020-09-25 12:18:36,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2020-09-25 12:18:36,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3120 transitions. [2020-09-25 12:18:36,673 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3120 transitions. Word has length 224 [2020-09-25 12:18:36,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:36,674 INFO L479 AbstractCegarLoop]: Abstraction has 2489 states and 3120 transitions. [2020-09-25 12:18:36,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:36,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3120 transitions. [2020-09-25 12:18:36,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-25 12:18:36,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:36,679 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 12:18:36,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 12:18:36,680 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:36,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:36,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1259631890, now seen corresponding path program 1 times [2020-09-25 12:18:36,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:36,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252194637] [2020-09-25 12:18:36,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:36,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:36,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:36,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:37,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:37,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:37,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-25 12:18:37,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:18:37,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 777 [2020-09-25 12:18:37,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:37,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 12:18:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 12:18:37,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:37,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:37,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:37,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:37,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:37,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:37,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:37,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:37,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:37,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:37,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:37,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 12:18:37,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252194637] [2020-09-25 12:18:37,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:37,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:37,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735474341] [2020-09-25 12:18:37,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:37,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:37,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:37,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:37,561 INFO L87 Difference]: Start difference. First operand 2489 states and 3120 transitions. Second operand 3 states. [2020-09-25 12:18:37,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:37,831 INFO L93 Difference]: Finished difference Result 5362 states and 6914 transitions. [2020-09-25 12:18:37,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:37,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-09-25 12:18:37,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:37,845 INFO L225 Difference]: With dead ends: 5362 [2020-09-25 12:18:37,846 INFO L226 Difference]: Without dead ends: 2924 [2020-09-25 12:18:37,851 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 12:18:37,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2020-09-25 12:18:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2825. [2020-09-25 12:18:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2825 states. [2020-09-25 12:18:37,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 3591 transitions. [2020-09-25 12:18:37,936 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 3591 transitions. Word has length 229 [2020-09-25 12:18:37,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:37,936 INFO L479 AbstractCegarLoop]: Abstraction has 2825 states and 3591 transitions. [2020-09-25 12:18:37,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:37,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 3591 transitions. [2020-09-25 12:18:37,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 12:18:37,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:37,943 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:37,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 12:18:37,943 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:37,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:37,944 INFO L82 PathProgramCache]: Analyzing trace with hash -445997892, now seen corresponding path program 1 times [2020-09-25 12:18:37,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:37,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301585345] [2020-09-25 12:18:37,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:38,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:38,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:38,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:38,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:38,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:39,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:39,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-25 12:18:39,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:18:39,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1805 [2020-09-25 12:18:39,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:39,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:39,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:18:39,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-09-25 12:18:39,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:18:39,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:39,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:39,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:39,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:39,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:39,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:39,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:39,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:39,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:39,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:39,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:39,921 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 12:18:39,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301585345] [2020-09-25 12:18:39,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:39,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:18:39,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314713667] [2020-09-25 12:18:39,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:18:39,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:39,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:18:39,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:18:39,927 INFO L87 Difference]: Start difference. First operand 2825 states and 3591 transitions. Second operand 4 states. [2020-09-25 12:18:40,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:40,311 INFO L93 Difference]: Finished difference Result 5847 states and 7434 transitions. [2020-09-25 12:18:40,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:18:40,312 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 235 [2020-09-25 12:18:40,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:40,331 INFO L225 Difference]: With dead ends: 5847 [2020-09-25 12:18:40,331 INFO L226 Difference]: Without dead ends: 3178 [2020-09-25 12:18:40,343 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 12:18:40,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3178 states. [2020-09-25 12:18:40,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3178 to 2644. [2020-09-25 12:18:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2644 states. [2020-09-25 12:18:40,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3369 transitions. [2020-09-25 12:18:40,480 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3369 transitions. Word has length 235 [2020-09-25 12:18:40,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:40,481 INFO L479 AbstractCegarLoop]: Abstraction has 2644 states and 3369 transitions. [2020-09-25 12:18:40,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:18:40,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3369 transitions. [2020-09-25 12:18:40,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-09-25 12:18:40,492 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:40,492 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-09-25 12:18:40,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 12:18:40,493 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:40,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:40,494 INFO L82 PathProgramCache]: Analyzing trace with hash 20327259, now seen corresponding path program 1 times [2020-09-25 12:18:40,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:40,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819134413] [2020-09-25 12:18:40,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:40,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:40,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:40,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:41,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 12:18:42,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:18:42,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2138 [2020-09-25 12:18:42,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:42,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-09-25 12:18:42,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 12:18:42,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:42,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:42,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:42,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:42,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:42,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:42,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:42,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 12:18:42,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819134413] [2020-09-25 12:18:42,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:42,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:42,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807407862] [2020-09-25 12:18:42,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:42,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:42,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:42,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:42,780 INFO L87 Difference]: Start difference. First operand 2644 states and 3369 transitions. Second operand 3 states. [2020-09-25 12:18:43,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:43,043 INFO L93 Difference]: Finished difference Result 5374 states and 6938 transitions. [2020-09-25 12:18:43,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:43,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-09-25 12:18:43,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:43,057 INFO L225 Difference]: With dead ends: 5374 [2020-09-25 12:18:43,057 INFO L226 Difference]: Without dead ends: 2856 [2020-09-25 12:18:43,062 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 12:18:43,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2020-09-25 12:18:43,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2750. [2020-09-25 12:18:43,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2750 states. [2020-09-25 12:18:43,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 3491 transitions. [2020-09-25 12:18:43,211 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 3491 transitions. Word has length 236 [2020-09-25 12:18:43,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:43,211 INFO L479 AbstractCegarLoop]: Abstraction has 2750 states and 3491 transitions. [2020-09-25 12:18:43,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:43,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 3491 transitions. [2020-09-25 12:18:43,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-09-25 12:18:43,218 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:43,218 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:43,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 12:18:43,219 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:43,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:43,219 INFO L82 PathProgramCache]: Analyzing trace with hash 742893832, now seen corresponding path program 1 times [2020-09-25 12:18:43,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:43,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055051976] [2020-09-25 12:18:43,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:44,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:44,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:46,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:46,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 12:18:46,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:18:46,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3222 [2020-09-25 12:18:46,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:46,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:46,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:46,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-09-25 12:18:46,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 12:18:46,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:46,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:46,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:46,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:46,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:46,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:46,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:46,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:46,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:46,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:46,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:46,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:46,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:46,544 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 12:18:46,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055051976] [2020-09-25 12:18:46,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:46,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:18:46,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091649078] [2020-09-25 12:18:46,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:18:46,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:46,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:18:46,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:18:46,547 INFO L87 Difference]: Start difference. First operand 2750 states and 3491 transitions. Second operand 3 states. [2020-09-25 12:18:46,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:46,862 INFO L93 Difference]: Finished difference Result 5767 states and 7396 transitions. [2020-09-25 12:18:46,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:18:46,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-09-25 12:18:46,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:46,876 INFO L225 Difference]: With dead ends: 5767 [2020-09-25 12:18:46,876 INFO L226 Difference]: Without dead ends: 3008 [2020-09-25 12:18:46,886 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 12:18:46,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2020-09-25 12:18:46,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2732. [2020-09-25 12:18:46,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2732 states. [2020-09-25 12:18:46,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 3430 transitions. [2020-09-25 12:18:46,977 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 3430 transitions. Word has length 236 [2020-09-25 12:18:46,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:46,978 INFO L479 AbstractCegarLoop]: Abstraction has 2732 states and 3430 transitions. [2020-09-25 12:18:46,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:18:46,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 3430 transitions. [2020-09-25 12:18:46,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-09-25 12:18:46,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:46,985 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-09-25 12:18:46,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 12:18:46,985 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:46,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:46,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1964263561, now seen corresponding path program 1 times [2020-09-25 12:18:46,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:46,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933434108] [2020-09-25 12:18:46,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:47,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:47,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:47,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:47,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:48,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:48,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-25 12:18:48,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:18:48,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1492 [2020-09-25 12:18:48,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:48,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:48,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:18:48,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-09-25 12:18:48,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:18:48,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:48,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:48,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:48,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:48,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:48,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:48,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:48,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:48,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:48,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:48,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 12:18:48,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933434108] [2020-09-25 12:18:48,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:48,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:18:48,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303381392] [2020-09-25 12:18:48,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:18:48,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:48,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:18:48,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:18:48,631 INFO L87 Difference]: Start difference. First operand 2732 states and 3430 transitions. Second operand 4 states. [2020-09-25 12:18:48,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:48,896 INFO L93 Difference]: Finished difference Result 5554 states and 6985 transitions. [2020-09-25 12:18:48,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:18:48,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 238 [2020-09-25 12:18:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:48,910 INFO L225 Difference]: With dead ends: 5554 [2020-09-25 12:18:48,910 INFO L226 Difference]: Without dead ends: 2946 [2020-09-25 12:18:48,916 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 12:18:48,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2020-09-25 12:18:48,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2772. [2020-09-25 12:18:48,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2772 states. [2020-09-25 12:18:48,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2772 states to 2772 states and 3474 transitions. [2020-09-25 12:18:49,000 INFO L78 Accepts]: Start accepts. Automaton has 2772 states and 3474 transitions. Word has length 238 [2020-09-25 12:18:49,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:49,001 INFO L479 AbstractCegarLoop]: Abstraction has 2772 states and 3474 transitions. [2020-09-25 12:18:49,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:18:49,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2772 states and 3474 transitions. [2020-09-25 12:18:49,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-09-25 12:18:49,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:49,007 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:49,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 12:18:49,007 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:49,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:49,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1608137162, now seen corresponding path program 1 times [2020-09-25 12:18:49,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:49,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253476402] [2020-09-25 12:18:49,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:49,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:49,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:49,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:49,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:49,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:50,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:51,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:51,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-25 12:18:51,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:18:51,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2658 [2020-09-25 12:18:51,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:51,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:51,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:18:51,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-09-25 12:18:51,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:18:51,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:51,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:51,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:51,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:51,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:51,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:51,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:51,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:51,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:51,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:51,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:51,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:51,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:51,764 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 12:18:51,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253476402] [2020-09-25 12:18:51,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:51,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:18:51,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405419319] [2020-09-25 12:18:51,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:18:51,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:51,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:18:51,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:18:51,766 INFO L87 Difference]: Start difference. First operand 2772 states and 3474 transitions. Second operand 4 states. [2020-09-25 12:18:52,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:52,076 INFO L93 Difference]: Finished difference Result 5899 states and 7401 transitions. [2020-09-25 12:18:52,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:18:52,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 238 [2020-09-25 12:18:52,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:52,086 INFO L225 Difference]: With dead ends: 5899 [2020-09-25 12:18:52,086 INFO L226 Difference]: Without dead ends: 3220 [2020-09-25 12:18:52,092 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 12:18:52,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2020-09-25 12:18:52,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 2991. [2020-09-25 12:18:52,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2991 states. [2020-09-25 12:18:52,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 3736 transitions. [2020-09-25 12:18:52,167 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 3736 transitions. Word has length 238 [2020-09-25 12:18:52,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:52,167 INFO L479 AbstractCegarLoop]: Abstraction has 2991 states and 3736 transitions. [2020-09-25 12:18:52,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:18:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 3736 transitions. [2020-09-25 12:18:52,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-25 12:18:52,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:52,174 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:52,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 12:18:52,175 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:52,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:52,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1712636091, now seen corresponding path program 1 times [2020-09-25 12:18:52,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:52,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822393001] [2020-09-25 12:18:52,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:52,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:52,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:52,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:52,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:52,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:53,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:55,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 12:18:55,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:18:55,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2851 [2020-09-25 12:18:55,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:55,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:18:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-09-25 12:18:55,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:18:55,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:55,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:55,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:55,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:55,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:55,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:18:55,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:55,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:55,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 12:18:55,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822393001] [2020-09-25 12:18:55,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:55,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:18:55,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286119035] [2020-09-25 12:18:55,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:18:55,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:55,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:18:55,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:18:55,189 INFO L87 Difference]: Start difference. First operand 2991 states and 3736 transitions. Second operand 4 states. [2020-09-25 12:18:55,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:55,486 INFO L93 Difference]: Finished difference Result 6045 states and 7564 transitions. [2020-09-25 12:18:55,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:18:55,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 239 [2020-09-25 12:18:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:55,502 INFO L225 Difference]: With dead ends: 6045 [2020-09-25 12:18:55,503 INFO L226 Difference]: Without dead ends: 3210 [2020-09-25 12:18:55,508 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 12:18:55,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2020-09-25 12:18:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 2458. [2020-09-25 12:18:55,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2458 states. [2020-09-25 12:18:55,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3062 transitions. [2020-09-25 12:18:55,586 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3062 transitions. Word has length 239 [2020-09-25 12:18:55,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:55,586 INFO L479 AbstractCegarLoop]: Abstraction has 2458 states and 3062 transitions. [2020-09-25 12:18:55,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:18:55,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3062 transitions. [2020-09-25 12:18:55,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-09-25 12:18:55,594 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:55,595 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:55,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 12:18:55,595 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:55,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:55,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1953419976, now seen corresponding path program 1 times [2020-09-25 12:18:55,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:55,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585057413] [2020-09-25 12:18:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:55,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:56,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:56,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:56,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:58,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:58,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 12:18:58,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:18:58,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2692 [2020-09-25 12:18:58,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:58,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:58,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:18:58,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 12:18:58,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:18:58,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:58,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:58,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:58,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:58,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:58,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:58,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:58,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:58,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:58,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:58,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:58,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:58,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:58,402 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 12:18:58,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585057413] [2020-09-25 12:18:58,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:58,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:18:58,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948731635] [2020-09-25 12:18:58,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:18:58,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:58,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:18:58,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:18:58,406 INFO L87 Difference]: Start difference. First operand 2458 states and 3062 transitions. Second operand 4 states. [2020-09-25 12:18:58,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:58,809 INFO L93 Difference]: Finished difference Result 5901 states and 7409 transitions. [2020-09-25 12:18:58,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:18:58,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 243 [2020-09-25 12:18:58,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:58,818 INFO L225 Difference]: With dead ends: 5901 [2020-09-25 12:18:58,818 INFO L226 Difference]: Without dead ends: 3599 [2020-09-25 12:18:58,824 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 12:18:58,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3599 states. [2020-09-25 12:18:58,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3599 to 1877. [2020-09-25 12:18:58,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1877 states. [2020-09-25 12:18:58,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2315 transitions. [2020-09-25 12:18:58,890 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2315 transitions. Word has length 243 [2020-09-25 12:18:58,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:58,891 INFO L479 AbstractCegarLoop]: Abstraction has 1877 states and 2315 transitions. [2020-09-25 12:18:58,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:18:58,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2315 transitions. [2020-09-25 12:18:58,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-09-25 12:18:58,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:58,896 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 12:18:58,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 12:18:58,897 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:58,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:58,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1637140168, now seen corresponding path program 1 times [2020-09-25 12:18:58,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:58,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051890961] [2020-09-25 12:18:58,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:58,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:59,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:59,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:59,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:59,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:59,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-25 12:18:59,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:18:59,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-09-25 12:18:59,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:59,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-09-25 12:18:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 12:18:59,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:59,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:59,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:59,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:59,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:18:59,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:59,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:18:59,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:59,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:59,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:59,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:59,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:59,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-09-25 12:19:00,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051890961] [2020-09-25 12:19:00,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:19:00,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:19:00,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029122638] [2020-09-25 12:19:00,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:19:00,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:00,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:19:00,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:19:00,023 INFO L87 Difference]: Start difference. First operand 1877 states and 2315 transitions. Second operand 3 states. [2020-09-25 12:19:00,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:00,181 INFO L93 Difference]: Finished difference Result 5215 states and 6489 transitions. [2020-09-25 12:19:00,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:19:00,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2020-09-25 12:19:00,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:00,190 INFO L225 Difference]: With dead ends: 5215 [2020-09-25 12:19:00,191 INFO L226 Difference]: Without dead ends: 3494 [2020-09-25 12:19:00,196 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 12:19:00,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2020-09-25 12:19:00,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 1910. [2020-09-25 12:19:00,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1910 states. [2020-09-25 12:19:00,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2359 transitions. [2020-09-25 12:19:00,270 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2359 transitions. Word has length 263 [2020-09-25 12:19:00,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:00,271 INFO L479 AbstractCegarLoop]: Abstraction has 1910 states and 2359 transitions. [2020-09-25 12:19:00,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:19:00,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2359 transitions. [2020-09-25 12:19:00,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-25 12:19:00,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:00,276 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 12:19:00,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 12:19:00,276 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:00,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:00,276 INFO L82 PathProgramCache]: Analyzing trace with hash -196875119, now seen corresponding path program 1 times [2020-09-25 12:19:00,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:00,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840852562] [2020-09-25 12:19:00,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 12:19:00,314 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 12:19:00,315 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 12:19:00,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 12:19:00,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:19:00 BoogieIcfgContainer [2020-09-25 12:19:00,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:19:00,363 INFO L168 Benchmark]: Toolchain (without parser) took 40304.06 ms. Allocated memory was 140.0 MB in the beginning and 677.9 MB in the end (delta: 537.9 MB). Free memory was 101.8 MB in the beginning and 472.5 MB in the end (delta: -370.7 MB). Peak memory consumption was 167.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:19:00,363 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 12:19:00,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.49 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 178.0 MB in the end (delta: -76.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-09-25 12:19:00,365 INFO L168 Benchmark]: Boogie Preprocessor took 68.12 ms. Allocated memory is still 203.4 MB. Free memory was 178.0 MB in the beginning and 175.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 12:19:00,365 INFO L168 Benchmark]: RCFGBuilder took 1072.99 ms. Allocated memory is still 203.4 MB. Free memory was 175.3 MB in the beginning and 102.5 MB in the end (delta: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. [2020-09-25 12:19:00,366 INFO L168 Benchmark]: TraceAbstraction took 38484.44 ms. Allocated memory was 203.4 MB in the beginning and 677.9 MB in the end (delta: 474.5 MB). Free memory was 101.8 MB in the beginning and 472.5 MB in the end (delta: -370.7 MB). Peak memory consumption was 103.8 MB. Max. memory is 7.1 GB. [2020-09-25 12:19:00,369 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.49 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 178.0 MB in the end (delta: -76.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.12 ms. Allocated memory is still 203.4 MB. Free memory was 178.0 MB in the beginning and 175.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1072.99 ms. Allocated memory is still 203.4 MB. Free memory was 175.3 MB in the beginning and 102.5 MB in the end (delta: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38484.44 ms. Allocated memory was 203.4 MB in the beginning and 677.9 MB in the end (delta: 474.5 MB). Free memory was 101.8 MB in the beginning and 472.5 MB in the end (delta: -370.7 MB). Peak memory consumption was 103.8 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: 38.3s, OverallIterations: 19, TraceHistogramMax: 4, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9351 SDtfs, 9044 SDslu, 11913 SDs, 0 SdLazy, 2669 SolverSat, 492 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2991occurred 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: 1.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 8143 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 29.2s InterpolantComputationTime, 4168 NumberOfCodeBlocks, 4168 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3885 ConstructedInterpolants, 0 QuantifiedInterpolants, 1257163 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 16 PerfectInterpolantSequences, 642/653 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...