/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_clnt_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:22:11,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:22:11,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:22:11,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:22:11,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:22:11,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:22:11,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:22:11,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:22:11,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:22:11,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:22:11,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:22:11,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:22:11,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:22:11,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:22:11,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:22:11,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:22:11,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:22:11,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:22:11,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:22:11,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:22:11,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:22:11,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:22:11,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:22:11,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:22:11,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:22:11,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:22:11,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:22:11,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:22:11,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:22:11,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:22:11,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:22:11,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:22:11,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:22:11,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:22:11,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:22:11,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:22:11,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:22:11,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:22:11,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:22:11,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:22:11,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:22:11,549 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:22:11,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:22:11,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:22:11,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:22:11,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:22:11,610 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:22:11,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:22:11,610 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:22:11,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:22:11,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:22:11,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:22:11,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:22:11,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:22:11,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:22:11,613 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:22:11,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:22:11,613 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:22:11,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:22:11,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:22:11,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:22:11,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:22:11,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:22:11,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:22:11,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:22:11,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:22:11,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:22:11,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:22:11,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:22:11,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:22:11,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:22:11,616 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:22:12,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:22:12,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:22:12,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:22:12,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:22:12,128 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:22:12,129 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-24 19:22:12,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9124d637/f9ff9bda535d48749e8b44f2403eed6d/FLAGdd205bed2 [2020-09-24 19:22:12,845 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:22:12,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-24 19:22:12,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9124d637/f9ff9bda535d48749e8b44f2403eed6d/FLAGdd205bed2 [2020-09-24 19:22:13,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9124d637/f9ff9bda535d48749e8b44f2403eed6d [2020-09-24 19:22:13,142 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:22:13,147 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:22:13,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:22:13,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:22:13,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:22:13,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:13" (1/1) ... [2020-09-24 19:22:13,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db8139c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:13, skipping insertion in model container [2020-09-24 19:22:13,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:13" (1/1) ... [2020-09-24 19:22:13,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:22:13,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:22:13,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:22:13,523 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:22:13,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:22:13,703 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:22:13,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:13 WrapperNode [2020-09-24 19:22:13,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:22:13,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:22:13,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:22:13,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:22:13,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:13" (1/1) ... [2020-09-24 19:22:13,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:13" (1/1) ... [2020-09-24 19:22:13,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:13" (1/1) ... [2020-09-24 19:22:13,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:13" (1/1) ... [2020-09-24 19:22:13,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:13" (1/1) ... [2020-09-24 19:22:13,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:13" (1/1) ... [2020-09-24 19:22:13,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:13" (1/1) ... [2020-09-24 19:22:13,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:22:13,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:22:13,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:22:13,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:22:13,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:22:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:22:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:22:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-24 19:22:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:22:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:22:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 19:22:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:22:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 19:22:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-24 19:22:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:22:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:22:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:22:14,012 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 19:22:14,748 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-24 19:22:14,749 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-24 19:22:14,775 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:22:14,775 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 19:22:14,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:14 BoogieIcfgContainer [2020-09-24 19:22:14,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:22:14,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:22:14,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:22:14,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:22:14,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:22:13" (1/3) ... [2020-09-24 19:22:14,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e3c406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:14, skipping insertion in model container [2020-09-24 19:22:14,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:13" (2/3) ... [2020-09-24 19:22:14,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e3c406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:14, skipping insertion in model container [2020-09-24 19:22:14,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:14" (3/3) ... [2020-09-24 19:22:14,797 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2020-09-24 19:22:14,810 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:22:14,831 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:22:14,855 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:22:14,898 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:22:14,898 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:22:14,899 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:22:14,899 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:22:14,899 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:22:14,899 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:22:14,899 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:22:14,900 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:22:14,946 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2020-09-24 19:22:14,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:22:14,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:14,966 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] [2020-09-24 19:22:14,967 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:14,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:14,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1688119681, now seen corresponding path program 1 times [2020-09-24 19:22:14,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:14,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148473746] [2020-09-24 19:22:14,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:15,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:15,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:15,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:16,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:16,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-24 19:22:16,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:16,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:22:16,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:16,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:22:16,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 19:22:16,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 19:22:16,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:16,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:16,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:16,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:16,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:16,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:22:16,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:16,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:16,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:16,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:16,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:16,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:16,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1148473746] [2020-09-24 19:22:16,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:16,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:16,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274498486] [2020-09-24 19:22:16,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:16,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:16,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:16,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:16,504 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 3 states. [2020-09-24 19:22:16,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:16,708 INFO L93 Difference]: Finished difference Result 853 states and 1110 transitions. [2020-09-24 19:22:16,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:16,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-09-24 19:22:16,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:16,735 INFO L225 Difference]: With dead ends: 853 [2020-09-24 19:22:16,735 INFO L226 Difference]: Without dead ends: 536 [2020-09-24 19:22:16,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:16,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-09-24 19:22:16,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2020-09-24 19:22:16,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-09-24 19:22:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 642 transitions. [2020-09-24 19:22:16,852 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 642 transitions. Word has length 161 [2020-09-24 19:22:16,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:16,854 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 642 transitions. [2020-09-24 19:22:16,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:16,854 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 642 transitions. [2020-09-24 19:22:16,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 19:22:16,859 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:16,860 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 19:22:16,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:22:16,861 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:16,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:16,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1280710455, now seen corresponding path program 1 times [2020-09-24 19:22:16,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:16,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083458383] [2020-09-24 19:22:16,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:16,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:17,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:17,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:17,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:17,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:17,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:17,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-24 19:22:17,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:17,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:22:17,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:17,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 19:22:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 19:22:17,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:17,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:17,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:17,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:17,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:17,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:17,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:22:17,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:17,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:17,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:17,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:17,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:18,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083458383] [2020-09-24 19:22:18,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:18,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:18,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610920829] [2020-09-24 19:22:18,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:18,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:18,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:18,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:18,030 INFO L87 Difference]: Start difference. First operand 536 states and 642 transitions. Second operand 3 states. [2020-09-24 19:22:18,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:18,127 INFO L93 Difference]: Finished difference Result 929 states and 1142 transitions. [2020-09-24 19:22:18,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:18,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-24 19:22:18,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:18,135 INFO L225 Difference]: With dead ends: 929 [2020-09-24 19:22:18,136 INFO L226 Difference]: Without dead ends: 729 [2020-09-24 19:22:18,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:18,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2020-09-24 19:22:18,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2020-09-24 19:22:18,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2020-09-24 19:22:18,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 885 transitions. [2020-09-24 19:22:18,206 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 885 transitions. Word has length 181 [2020-09-24 19:22:18,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:18,207 INFO L479 AbstractCegarLoop]: Abstraction has 729 states and 885 transitions. [2020-09-24 19:22:18,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:18,207 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 885 transitions. [2020-09-24 19:22:18,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-24 19:22:18,212 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:18,212 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-09-24 19:22:18,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:22:18,213 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:18,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:18,213 INFO L82 PathProgramCache]: Analyzing trace with hash 436822488, now seen corresponding path program 1 times [2020-09-24 19:22:18,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:18,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484071716] [2020-09-24 19:22:18,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:18,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:18,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:18,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:18,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:19,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:19,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 19:22:19,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:22:19,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-09-24 19:22:19,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:19,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:19,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-24 19:22:19,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 19:22:19,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:19,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:19,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:19,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:19,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:19,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:19,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:19,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:19,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:19,349 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 19:22:19,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484071716] [2020-09-24 19:22:19,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:19,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:19,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244507479] [2020-09-24 19:22:19,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:19,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:19,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:19,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:19,353 INFO L87 Difference]: Start difference. First operand 729 states and 885 transitions. Second operand 3 states. [2020-09-24 19:22:19,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:19,614 INFO L93 Difference]: Finished difference Result 1501 states and 1923 transitions. [2020-09-24 19:22:19,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:19,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-09-24 19:22:19,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:19,621 INFO L225 Difference]: With dead ends: 1501 [2020-09-24 19:22:19,622 INFO L226 Difference]: Without dead ends: 912 [2020-09-24 19:22:19,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:19,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-09-24 19:22:19,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 861. [2020-09-24 19:22:19,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-09-24 19:22:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1044 transitions. [2020-09-24 19:22:19,654 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1044 transitions. Word has length 202 [2020-09-24 19:22:19,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:19,655 INFO L479 AbstractCegarLoop]: Abstraction has 861 states and 1044 transitions. [2020-09-24 19:22:19,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1044 transitions. [2020-09-24 19:22:19,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-24 19:22:19,660 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:19,660 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-09-24 19:22:19,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:22:19,660 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:19,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:19,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1406778824, now seen corresponding path program 1 times [2020-09-24 19:22:19,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:19,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266922704] [2020-09-24 19:22:19,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:19,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:19,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:20,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:20,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:20,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:20,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:20,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 19:22:20,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:20,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:22:20,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-24 19:22:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 19:22:20,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:20,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:20,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:20,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:20,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:20,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:20,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:20,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:20,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:20,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:20,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:20,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:20,828 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 19:22:20,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266922704] [2020-09-24 19:22:20,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:20,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:20,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614011911] [2020-09-24 19:22:20,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:20,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:20,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:20,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:20,838 INFO L87 Difference]: Start difference. First operand 861 states and 1044 transitions. Second operand 3 states. [2020-09-24 19:22:20,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:20,913 INFO L93 Difference]: Finished difference Result 1579 states and 1946 transitions. [2020-09-24 19:22:20,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:20,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-09-24 19:22:20,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:20,920 INFO L225 Difference]: With dead ends: 1579 [2020-09-24 19:22:20,921 INFO L226 Difference]: Without dead ends: 1098 [2020-09-24 19:22:20,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:20,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2020-09-24 19:22:20,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1098. [2020-09-24 19:22:20,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1098 states. [2020-09-24 19:22:20,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1341 transitions. [2020-09-24 19:22:20,955 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1341 transitions. Word has length 202 [2020-09-24 19:22:20,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:20,956 INFO L479 AbstractCegarLoop]: Abstraction has 1098 states and 1341 transitions. [2020-09-24 19:22:20,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:20,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1341 transitions. [2020-09-24 19:22:20,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 19:22:20,960 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:20,961 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2020-09-24 19:22:20,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:22:20,961 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:20,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:20,962 INFO L82 PathProgramCache]: Analyzing trace with hash 247171946, now seen corresponding path program 1 times [2020-09-24 19:22:20,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:20,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065745369] [2020-09-24 19:22:20,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:21,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:21,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:21,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:21,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:21,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:22,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:22,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 19:22:22,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:22,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-09-24 19:22:22,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:22,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:22,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-09-24 19:22:22,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 19:22:22,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:22,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:22,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:22,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:22,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:22,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:22,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:22,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:22,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:22,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:22,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:22,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:22,163 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-24 19:22:22,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065745369] [2020-09-24 19:22:22,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:22,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:22,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994817054] [2020-09-24 19:22:22,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:22,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:22,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:22,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:22,165 INFO L87 Difference]: Start difference. First operand 1098 states and 1341 transitions. Second operand 3 states. [2020-09-24 19:22:22,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:22,413 INFO L93 Difference]: Finished difference Result 2326 states and 2961 transitions. [2020-09-24 19:22:22,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:22,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-09-24 19:22:22,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:22,422 INFO L225 Difference]: With dead ends: 2326 [2020-09-24 19:22:22,422 INFO L226 Difference]: Without dead ends: 1371 [2020-09-24 19:22:22,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:22,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2020-09-24 19:22:22,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1274. [2020-09-24 19:22:22,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1274 states. [2020-09-24 19:22:22,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1573 transitions. [2020-09-24 19:22:22,462 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1573 transitions. Word has length 226 [2020-09-24 19:22:22,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:22,462 INFO L479 AbstractCegarLoop]: Abstraction has 1274 states and 1573 transitions. [2020-09-24 19:22:22,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:22,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1573 transitions. [2020-09-24 19:22:22,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-09-24 19:22:22,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:22,468 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:22,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:22:22,468 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:22,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:22,469 INFO L82 PathProgramCache]: Analyzing trace with hash -767435963, now seen corresponding path program 1 times [2020-09-24 19:22:22,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:22,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7833812] [2020-09-24 19:22:22,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:22,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:22,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:22,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:22,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:23,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:23,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 19:22:23,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:22:23,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:22:23,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 167 [2020-09-24 19:22:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 19:22:23,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:23,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:23,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:23,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:23,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:23,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:23,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:23,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:23,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:23,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 19:22:23,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7833812] [2020-09-24 19:22:23,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:23,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:23,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831248795] [2020-09-24 19:22:23,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:23,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:23,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:23,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:23,602 INFO L87 Difference]: Start difference. First operand 1274 states and 1573 transitions. Second operand 3 states. [2020-09-24 19:22:23,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:23,642 INFO L93 Difference]: Finished difference Result 3428 states and 4269 transitions. [2020-09-24 19:22:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:23,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-09-24 19:22:23,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:23,654 INFO L225 Difference]: With dead ends: 3428 [2020-09-24 19:22:23,655 INFO L226 Difference]: Without dead ends: 2297 [2020-09-24 19:22:23,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:23,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2020-09-24 19:22:23,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 2295. [2020-09-24 19:22:23,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2295 states. [2020-09-24 19:22:23,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 2830 transitions. [2020-09-24 19:22:23,716 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 2830 transitions. Word has length 233 [2020-09-24 19:22:23,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:23,717 INFO L479 AbstractCegarLoop]: Abstraction has 2295 states and 2830 transitions. [2020-09-24 19:22:23,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:23,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 2830 transitions. [2020-09-24 19:22:23,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 19:22:23,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:23,725 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:23,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:22:23,725 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:23,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:23,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1585492969, now seen corresponding path program 1 times [2020-09-24 19:22:23,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:23,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81327349] [2020-09-24 19:22:23,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:23,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:23,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:23,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:23,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:24,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:24,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-24 19:22:24,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:22:24,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:22:24,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 19:22:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:22:24,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:24,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:24,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:24,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:24,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:24,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:24,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:24,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:24,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:24,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:24,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:24,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 19:22:24,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81327349] [2020-09-24 19:22:24,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:24,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:24,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575496965] [2020-09-24 19:22:24,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:24,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:24,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:24,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:24,972 INFO L87 Difference]: Start difference. First operand 2295 states and 2830 transitions. Second operand 3 states. [2020-09-24 19:22:25,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:25,046 INFO L93 Difference]: Finished difference Result 4483 states and 5557 transitions. [2020-09-24 19:22:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:25,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-09-24 19:22:25,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:25,062 INFO L225 Difference]: With dead ends: 4483 [2020-09-24 19:22:25,063 INFO L226 Difference]: Without dead ends: 2331 [2020-09-24 19:22:25,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:25,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2020-09-24 19:22:25,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2311. [2020-09-24 19:22:25,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2311 states. [2020-09-24 19:22:25,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 2842 transitions. [2020-09-24 19:22:25,163 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 2842 transitions. Word has length 235 [2020-09-24 19:22:25,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:25,163 INFO L479 AbstractCegarLoop]: Abstraction has 2311 states and 2842 transitions. [2020-09-24 19:22:25,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:25,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 2842 transitions. [2020-09-24 19:22:25,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-24 19:22:25,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:25,172 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:25,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:22:25,172 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:25,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:25,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1476861513, now seen corresponding path program 1 times [2020-09-24 19:22:25,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:25,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237727126] [2020-09-24 19:22:25,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:25,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:25,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:25,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:25,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:25,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:26,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-24 19:22:26,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:26,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:22:26,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-09-24 19:22:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 19:22:26,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:26,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:26,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:26,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:26,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:26,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:26,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:26,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:26,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:26,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:26,332 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 19:22:26,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237727126] [2020-09-24 19:22:26,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:26,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:26,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182393183] [2020-09-24 19:22:26,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:26,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:26,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:26,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:26,335 INFO L87 Difference]: Start difference. First operand 2311 states and 2842 transitions. Second operand 3 states. [2020-09-24 19:22:26,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:26,419 INFO L93 Difference]: Finished difference Result 6628 states and 8203 transitions. [2020-09-24 19:22:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:26,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-09-24 19:22:26,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:26,443 INFO L225 Difference]: With dead ends: 6628 [2020-09-24 19:22:26,443 INFO L226 Difference]: Without dead ends: 4460 [2020-09-24 19:22:26,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:26,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4460 states. [2020-09-24 19:22:26,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 4458. [2020-09-24 19:22:26,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4458 states. [2020-09-24 19:22:26,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4458 states to 4458 states and 5487 transitions. [2020-09-24 19:22:26,563 INFO L78 Accepts]: Start accepts. Automaton has 4458 states and 5487 transitions. Word has length 239 [2020-09-24 19:22:26,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:26,563 INFO L479 AbstractCegarLoop]: Abstraction has 4458 states and 5487 transitions. [2020-09-24 19:22:26,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 4458 states and 5487 transitions. [2020-09-24 19:22:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-24 19:22:26,577 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:26,577 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:26,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:22:26,578 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:26,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:26,578 INFO L82 PathProgramCache]: Analyzing trace with hash -81153851, now seen corresponding path program 1 times [2020-09-24 19:22:26,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:26,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384162992] [2020-09-24 19:22:26,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:26,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:27,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:27,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:27,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:27,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-24 19:22:27,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:22:27,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-09-24 19:22:27,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-09-24 19:22:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:22:27,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:27,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:27,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:27,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:27,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:27,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:27,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:27,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:27,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-24 19:22:27,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384162992] [2020-09-24 19:22:27,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:27,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:27,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004498444] [2020-09-24 19:22:27,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:27,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:27,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:27,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:27,788 INFO L87 Difference]: Start difference. First operand 4458 states and 5487 transitions. Second operand 3 states. [2020-09-24 19:22:27,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:27,913 INFO L93 Difference]: Finished difference Result 8768 states and 10840 transitions. [2020-09-24 19:22:27,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:27,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-09-24 19:22:27,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:27,943 INFO L225 Difference]: With dead ends: 8768 [2020-09-24 19:22:27,943 INFO L226 Difference]: Without dead ends: 5530 [2020-09-24 19:22:27,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:27,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2020-09-24 19:22:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 5530. [2020-09-24 19:22:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5530 states. [2020-09-24 19:22:28,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5530 states to 5530 states and 6819 transitions. [2020-09-24 19:22:28,098 INFO L78 Accepts]: Start accepts. Automaton has 5530 states and 6819 transitions. Word has length 241 [2020-09-24 19:22:28,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:28,098 INFO L479 AbstractCegarLoop]: Abstraction has 5530 states and 6819 transitions. [2020-09-24 19:22:28,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5530 states and 6819 transitions. [2020-09-24 19:22:28,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-24 19:22:28,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:28,113 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-09-24 19:22:28,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:22:28,114 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:28,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:28,114 INFO L82 PathProgramCache]: Analyzing trace with hash -552259409, now seen corresponding path program 1 times [2020-09-24 19:22:28,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:28,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855988505] [2020-09-24 19:22:28,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:28,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:28,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:28,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:28,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-24 19:22:28,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:22:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 840 [2020-09-24 19:22:28,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:22:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 19:22:28,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-09-24 19:22:28,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:29,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:29,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:29,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:29,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:29,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:29,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:29,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:29,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:29,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:29,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:29,192 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-24 19:22:29,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1855988505] [2020-09-24 19:22:29,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:29,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:22:29,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116494892] [2020-09-24 19:22:29,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:22:29,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:29,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:22:29,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:22:29,195 INFO L87 Difference]: Start difference. First operand 5530 states and 6819 transitions. Second operand 6 states. [2020-09-24 19:22:29,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:29,598 INFO L93 Difference]: Finished difference Result 11640 states and 14476 transitions. [2020-09-24 19:22:29,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:22:29,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2020-09-24 19:22:29,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:29,631 INFO L225 Difference]: With dead ends: 11640 [2020-09-24 19:22:29,631 INFO L226 Difference]: Without dead ends: 6258 [2020-09-24 19:22:29,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:22:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6258 states. [2020-09-24 19:22:29,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6258 to 6080. [2020-09-24 19:22:29,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6080 states. [2020-09-24 19:22:29,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6080 states to 6080 states and 7569 transitions. [2020-09-24 19:22:29,816 INFO L78 Accepts]: Start accepts. Automaton has 6080 states and 7569 transitions. Word has length 251 [2020-09-24 19:22:29,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:29,817 INFO L479 AbstractCegarLoop]: Abstraction has 6080 states and 7569 transitions. [2020-09-24 19:22:29,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:22:29,817 INFO L276 IsEmpty]: Start isEmpty. Operand 6080 states and 7569 transitions. [2020-09-24 19:22:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-09-24 19:22:29,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:29,832 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2020-09-24 19:22:29,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 19:22:29,833 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:29,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:29,833 INFO L82 PathProgramCache]: Analyzing trace with hash -349484375, now seen corresponding path program 1 times [2020-09-24 19:22:29,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:29,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757111795] [2020-09-24 19:22:29,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:29,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:30,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:30,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:30,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-24 19:22:30,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:22:30,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-09-24 19:22:30,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:30,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:22:30,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 19:22:30,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-24 19:22:30,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:30,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:30,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:30,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:30,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:30,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:30,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:30,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-24 19:22:30,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757111795] [2020-09-24 19:22:30,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:30,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:22:30,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965339687] [2020-09-24 19:22:30,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:22:30,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:30,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:22:30,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:22:30,468 INFO L87 Difference]: Start difference. First operand 6080 states and 7569 transitions. Second operand 6 states. [2020-09-24 19:22:30,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:30,770 INFO L93 Difference]: Finished difference Result 12018 states and 14992 transitions. [2020-09-24 19:22:30,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:22:30,770 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 252 [2020-09-24 19:22:30,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:30,828 INFO L225 Difference]: With dead ends: 12018 [2020-09-24 19:22:30,829 INFO L226 Difference]: Without dead ends: 6086 [2020-09-24 19:22:30,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:22:30,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6086 states. [2020-09-24 19:22:31,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6086 to 6086. [2020-09-24 19:22:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6086 states. [2020-09-24 19:22:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 7575 transitions. [2020-09-24 19:22:31,192 INFO L78 Accepts]: Start accepts. Automaton has 6086 states and 7575 transitions. Word has length 252 [2020-09-24 19:22:31,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:31,193 INFO L479 AbstractCegarLoop]: Abstraction has 6086 states and 7575 transitions. [2020-09-24 19:22:31,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:22:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand 6086 states and 7575 transitions. [2020-09-24 19:22:31,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-24 19:22:31,208 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:31,208 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:31,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 19:22:31,209 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:31,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:31,209 INFO L82 PathProgramCache]: Analyzing trace with hash 127538036, now seen corresponding path program 1 times [2020-09-24 19:22:31,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:31,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322509304] [2020-09-24 19:22:31,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:22:31,261 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:22:31,262 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:22:31,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 19:22:31,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:22:31 BoogieIcfgContainer [2020-09-24 19:22:31,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:22:31,329 INFO L168 Benchmark]: Toolchain (without parser) took 18182.38 ms. Allocated memory was 139.5 MB in the beginning and 520.1 MB in the end (delta: 380.6 MB). Free memory was 101.9 MB in the beginning and 415.0 MB in the end (delta: -313.1 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:31,334 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 19:22:31,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.19 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 178.0 MB in the end (delta: -76.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:31,337 INFO L168 Benchmark]: Boogie Preprocessor took 60.33 ms. Allocated memory is still 202.4 MB. Free memory was 178.0 MB in the beginning and 175.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:31,337 INFO L168 Benchmark]: RCFGBuilder took 1018.22 ms. Allocated memory is still 202.4 MB. Free memory was 175.2 MB in the beginning and 111.4 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:31,339 INFO L168 Benchmark]: TraceAbstraction took 16539.37 ms. Allocated memory was 202.4 MB in the beginning and 520.1 MB in the end (delta: 317.7 MB). Free memory was 110.8 MB in the beginning and 415.0 MB in the end (delta: -304.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:31,351 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 556.19 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 178.0 MB in the end (delta: -76.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.33 ms. Allocated memory is still 202.4 MB. Free memory was 178.0 MB in the beginning and 175.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1018.22 ms. Allocated memory is still 202.4 MB. Free memory was 175.2 MB in the beginning and 111.4 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16539.37 ms. Allocated memory was 202.4 MB in the beginning and 520.1 MB in the end (delta: 317.7 MB). Free memory was 110.8 MB in the beginning and 415.0 MB in the end (delta: -304.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(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__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 - 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version - 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L257] COND FALSE !(ret <= 0) [L260] s__state = 4384 [L261] s__init_num = 0 [L262] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L268] ret = __VERIFIER_nondet_int() [L269] COND TRUE blastFlag == 1 [L270] blastFlag = 2 [L272] COND FALSE !(ret <= 0) [L275] COND FALSE !(\read(s__hit)) [L278] s__state = 4400 [L280] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L285] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L286] COND FALSE !(__cil_tmp56 - 256UL) [L289] ret = __VERIFIER_nondet_int() [L290] COND TRUE blastFlag == 2 [L291] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 385 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.3s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4895 SDtfs, 3485 SDslu, 4179 SDs, 0 SdLazy, 601 SolverSat, 127 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6086occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 350 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 2697 NumberOfCodeBlocks, 2697 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2412 ConstructedInterpolants, 0 QuantifiedInterpolants, 831958 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 626/626 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...