/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:47:50,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:47:50,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:47:50,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:47:50,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:47:50,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:47:50,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:47:50,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:47:50,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:47:50,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:47:50,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:47:50,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:47:50,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:47:50,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:47:50,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:47:50,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:47:50,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:47:50,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:47:50,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:47:50,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:47:50,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:47:50,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:47:50,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:47:50,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:47:50,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:47:50,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:47:50,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:47:50,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:47:50,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:47:50,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:47:50,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:47:50,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:47:50,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:47:50,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:47:50,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:47:50,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:47:50,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:47:50,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:47:50,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:47:50,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:47:50,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:47:50,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:47:50,633 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:47:50,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:47:50,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:47:50,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:47:50,635 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:47:50,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:47:50,636 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:47:50,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:47:50,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:47:50,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:47:50,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:47:50,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:47:50,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:47:50,637 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:47:50,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:47:50,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:47:50,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:47:50,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:47:50,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:47:50,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:47:50,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:47:50,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:47:50,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:47:50,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:47:50,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:47:50,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:47:50,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:47:50,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:47:50,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:47:50,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:47:51,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:47:51,129 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:47:51,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:47:51,142 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:47:51,143 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:47:51,145 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2020-09-25 07:47:51,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a0666b4c/36ca499631f2401eaefedf20eefc15c2/FLAG5dcc6a7e1 [2020-09-25 07:47:51,821 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:47:51,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2020-09-25 07:47:51,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a0666b4c/36ca499631f2401eaefedf20eefc15c2/FLAG5dcc6a7e1 [2020-09-25 07:47:52,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a0666b4c/36ca499631f2401eaefedf20eefc15c2 [2020-09-25 07:47:52,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:47:52,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:47:52,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:47:52,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:47:52,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:47:52,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:47:52" (1/1) ... [2020-09-25 07:47:52,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1e44a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:52, skipping insertion in model container [2020-09-25 07:47:52,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:47:52" (1/1) ... [2020-09-25 07:47:52,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:47:52,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:47:52,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:47:52,516 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:47:52,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:47:52,710 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:47:52,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:52 WrapperNode [2020-09-25 07:47:52,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:47:52,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:47:52,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:47:52,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:47:52,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:52" (1/1) ... [2020-09-25 07:47:52,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:52" (1/1) ... [2020-09-25 07:47:52,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:52" (1/1) ... [2020-09-25 07:47:52,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:52" (1/1) ... [2020-09-25 07:47:52,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:52" (1/1) ... [2020-09-25 07:47:52,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:52" (1/1) ... [2020-09-25 07:47:52,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:52" (1/1) ... [2020-09-25 07:47:52,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:47:52,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:47:52,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:47:52,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:47:52,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:47:52,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:47:52,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:47:52,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 07:47:52,873 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:47:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:47:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 07:47:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:47:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 07:47:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 07:47:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 07:47:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:47:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:47:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:47:53,072 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:53,767 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 07:47:53,768 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 07:47:53,803 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:47:53,803 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 07:47:53,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:47:53 BoogieIcfgContainer [2020-09-25 07:47:53,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:47:53,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:47:53,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:47:53,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:47:53,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:47:52" (1/3) ... [2020-09-25 07:47:53,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f788d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:47:53, skipping insertion in model container [2020-09-25 07:47:53,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:52" (2/3) ... [2020-09-25 07:47:53,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f788d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:47:53, skipping insertion in model container [2020-09-25 07:47:53,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:47:53" (3/3) ... [2020-09-25 07:47:53,823 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-2.c [2020-09-25 07:47:53,836 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:47:53,849 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:47:53,872 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:47:53,909 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:47:53,909 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:47:53,909 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:47:53,909 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:47:53,909 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:47:53,910 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:47:53,910 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:47:53,910 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:47:53,944 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states. [2020-09-25 07:47:53,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 07:47:53,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:53,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:47:53,966 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:53,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:53,974 INFO L82 PathProgramCache]: Analyzing trace with hash 44117518, now seen corresponding path program 1 times [2020-09-25 07:47:53,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:53,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003846612] [2020-09-25 07:47:53,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:54,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:54,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:54,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:55,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:55,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 07:47:55,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:47:55,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1117 [2020-09-25 07:47:55,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:55,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:55,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:55,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-09-25 07:47:55,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 07:47:55,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 07:47:55,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:55,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:55,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:55,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:47:55,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:55,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:47:55,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:55,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:55,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:55,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:55,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:47:55,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:55,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003846612] [2020-09-25 07:47:55,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:55,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:47:55,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595159886] [2020-09-25 07:47:55,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:47:55,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:55,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:47:55,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:47:55,656 INFO L87 Difference]: Start difference. First operand 414 states. Second operand 3 states. [2020-09-25 07:47:55,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:55,868 INFO L93 Difference]: Finished difference Result 900 states and 1157 transitions. [2020-09-25 07:47:55,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:47:55,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 07:47:55,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:55,895 INFO L225 Difference]: With dead ends: 900 [2020-09-25 07:47:55,896 INFO L226 Difference]: Without dead ends: 574 [2020-09-25 07:47:55,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:47:55,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-09-25 07:47:55,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2020-09-25 07:47:55,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-09-25 07:47:55,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 680 transitions. [2020-09-25 07:47:55,997 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 680 transitions. Word has length 181 [2020-09-25 07:47:55,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:55,998 INFO L479 AbstractCegarLoop]: Abstraction has 574 states and 680 transitions. [2020-09-25 07:47:55,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:47:55,999 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 680 transitions. [2020-09-25 07:47:56,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 07:47:56,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:56,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:47:56,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:47:56,006 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:56,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:56,007 INFO L82 PathProgramCache]: Analyzing trace with hash 157739509, now seen corresponding path program 1 times [2020-09-25 07:47:56,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:56,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50933715] [2020-09-25 07:47:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:56,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:56,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:56,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:56,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:56,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:57,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:57,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 07:47:57,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:47:57,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1885 [2020-09-25 07:47:57,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:57,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:57,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-25 07:47:57,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:47:57,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:47:58,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:58,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:58,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:47:58,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:58,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:47:58,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:58,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:58,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:58,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:58,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:58,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:58,081 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:58,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50933715] [2020-09-25 07:47:58,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:58,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:47:58,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235676170] [2020-09-25 07:47:58,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:47:58,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:58,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:47:58,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:47:58,088 INFO L87 Difference]: Start difference. First operand 574 states and 680 transitions. Second operand 3 states. [2020-09-25 07:47:58,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:58,165 INFO L93 Difference]: Finished difference Result 985 states and 1198 transitions. [2020-09-25 07:47:58,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:47:58,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-09-25 07:47:58,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:58,175 INFO L225 Difference]: With dead ends: 985 [2020-09-25 07:47:58,175 INFO L226 Difference]: Without dead ends: 776 [2020-09-25 07:47:58,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:47:58,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-09-25 07:47:58,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 776. [2020-09-25 07:47:58,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2020-09-25 07:47:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 932 transitions. [2020-09-25 07:47:58,240 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 932 transitions. Word has length 203 [2020-09-25 07:47:58,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:58,243 INFO L479 AbstractCegarLoop]: Abstraction has 776 states and 932 transitions. [2020-09-25 07:47:58,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:47:58,243 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 932 transitions. [2020-09-25 07:47:58,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 07:47:58,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:58,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:47:58,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:47:58,250 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:58,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:58,250 INFO L82 PathProgramCache]: Analyzing trace with hash -629663792, now seen corresponding path program 1 times [2020-09-25 07:47:58,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:58,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127466067] [2020-09-25 07:47:58,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:58,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:59,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:59,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-25 07:47:59,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:47:59,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1439 [2020-09-25 07:47:59,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:59,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:59,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:59,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-25 07:47:59,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:47:59,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:59,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:59,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:59,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:59,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:47:59,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:59,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:47:59,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:59,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:59,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 07:47:59,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127466067] [2020-09-25 07:47:59,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:59,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:47:59,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807263353] [2020-09-25 07:47:59,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:47:59,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:59,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:47:59,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:47:59,854 INFO L87 Difference]: Start difference. First operand 776 states and 932 transitions. Second operand 3 states. [2020-09-25 07:47:59,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:59,957 INFO L93 Difference]: Finished difference Result 1389 states and 1702 transitions. [2020-09-25 07:47:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:47:59,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-25 07:47:59,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:59,964 INFO L225 Difference]: With dead ends: 1389 [2020-09-25 07:47:59,965 INFO L226 Difference]: Without dead ends: 978 [2020-09-25 07:47:59,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:47:59,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2020-09-25 07:48:00,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2020-09-25 07:48:00,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2020-09-25 07:48:00,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1185 transitions. [2020-09-25 07:48:00,007 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1185 transitions. Word has length 224 [2020-09-25 07:48:00,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:00,008 INFO L479 AbstractCegarLoop]: Abstraction has 978 states and 1185 transitions. [2020-09-25 07:48:00,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:00,009 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1185 transitions. [2020-09-25 07:48:00,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-25 07:48:00,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:00,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:00,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:48:00,015 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:00,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:00,015 INFO L82 PathProgramCache]: Analyzing trace with hash -649785374, now seen corresponding path program 1 times [2020-09-25 07:48:00,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:00,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491888996] [2020-09-25 07:48:00,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:00,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:00,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:00,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:03,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:03,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 07:48:03,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:48:03,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3540 [2020-09-25 07:48:03,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:03,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:03,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:03,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-09-25 07:48:03,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 07:48:03,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:03,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:03,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:03,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:03,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:03,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:03,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:03,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:03,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:03,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:03,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:03,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:03,700 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 07:48:03,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491888996] [2020-09-25 07:48:03,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:03,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:03,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417404622] [2020-09-25 07:48:03,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:03,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:03,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:03,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:03,703 INFO L87 Difference]: Start difference. First operand 978 states and 1185 transitions. Second operand 3 states. [2020-09-25 07:48:03,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:03,788 INFO L93 Difference]: Finished difference Result 1793 states and 2208 transitions. [2020-09-25 07:48:03,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:03,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2020-09-25 07:48:03,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:03,797 INFO L225 Difference]: With dead ends: 1793 [2020-09-25 07:48:03,797 INFO L226 Difference]: Without dead ends: 1180 [2020-09-25 07:48:03,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:03,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2020-09-25 07:48:03,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1180. [2020-09-25 07:48:03,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2020-09-25 07:48:03,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1439 transitions. [2020-09-25 07:48:03,844 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1439 transitions. Word has length 248 [2020-09-25 07:48:03,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:03,845 INFO L479 AbstractCegarLoop]: Abstraction has 1180 states and 1439 transitions. [2020-09-25 07:48:03,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:03,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1439 transitions. [2020-09-25 07:48:03,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-09-25 07:48:03,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:03,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:03,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:48:03,858 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:03,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:03,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1398555413, now seen corresponding path program 1 times [2020-09-25 07:48:03,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:03,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29315076] [2020-09-25 07:48:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:03,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:04,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:04,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:05,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:05,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-25 07:48:05,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:48:05,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1563 [2020-09-25 07:48:05,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:05,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-09-25 07:48:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:48:05,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:05,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:05,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:05,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:05,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:05,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:05,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:05,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:05,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:05,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:05,574 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 07:48:05,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29315076] [2020-09-25 07:48:05,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:05,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:05,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909245305] [2020-09-25 07:48:05,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:05,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:05,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:05,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:05,577 INFO L87 Difference]: Start difference. First operand 1180 states and 1439 transitions. Second operand 3 states. [2020-09-25 07:48:05,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:05,828 INFO L93 Difference]: Finished difference Result 2537 states and 3241 transitions. [2020-09-25 07:48:05,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:05,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2020-09-25 07:48:05,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:05,836 INFO L225 Difference]: With dead ends: 2537 [2020-09-25 07:48:05,837 INFO L226 Difference]: Without dead ends: 1515 [2020-09-25 07:48:05,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:05,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2020-09-25 07:48:05,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1400. [2020-09-25 07:48:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1400 states. [2020-09-25 07:48:05,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1704 transitions. [2020-09-25 07:48:05,898 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1704 transitions. Word has length 273 [2020-09-25 07:48:05,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:05,899 INFO L479 AbstractCegarLoop]: Abstraction has 1400 states and 1704 transitions. [2020-09-25 07:48:05,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:05,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1704 transitions. [2020-09-25 07:48:05,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-09-25 07:48:05,906 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:05,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:05,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:48:05,906 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:05,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:05,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1035579061, now seen corresponding path program 1 times [2020-09-25 07:48:05,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:05,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726393996] [2020-09-25 07:48:05,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:05,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:06,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:07,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-25 07:48:07,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:07,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1109 [2020-09-25 07:48:07,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:07,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:07,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:07,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:48:07,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-25 07:48:07,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:07,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:07,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:07,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:07,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:07,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:07,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:07,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:07,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:07,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:07,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:07,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:48:07,347 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 07:48:07,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726393996] [2020-09-25 07:48:07,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:07,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:48:07,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853304039] [2020-09-25 07:48:07,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:48:07,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:07,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:48:07,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:48:07,351 INFO L87 Difference]: Start difference. First operand 1400 states and 1704 transitions. Second operand 6 states. [2020-09-25 07:48:07,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:07,604 INFO L93 Difference]: Finished difference Result 2773 states and 3437 transitions. [2020-09-25 07:48:07,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:48:07,604 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 273 [2020-09-25 07:48:07,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:07,612 INFO L225 Difference]: With dead ends: 2773 [2020-09-25 07:48:07,612 INFO L226 Difference]: Without dead ends: 1536 [2020-09-25 07:48:07,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:48:07,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2020-09-25 07:48:07,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1490. [2020-09-25 07:48:07,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-09-25 07:48:07,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1844 transitions. [2020-09-25 07:48:07,665 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1844 transitions. Word has length 273 [2020-09-25 07:48:07,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:07,666 INFO L479 AbstractCegarLoop]: Abstraction has 1490 states and 1844 transitions. [2020-09-25 07:48:07,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:48:07,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1844 transitions. [2020-09-25 07:48:07,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-25 07:48:07,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:07,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:07,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:48:07,673 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:07,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:07,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1988234171, now seen corresponding path program 1 times [2020-09-25 07:48:07,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:07,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48744408] [2020-09-25 07:48:07,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:07,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:08,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:08,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-09-25 07:48:08,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:08,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-09-25 07:48:08,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:08,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:08,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:08,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:48:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-09-25 07:48:08,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:08,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:08,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:08,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:08,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:08,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:08,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:08,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:08,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:08,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 07:48:08,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48744408] [2020-09-25 07:48:08,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:08,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:48:08,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130142893] [2020-09-25 07:48:08,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:48:08,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:08,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:48:08,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:48:08,688 INFO L87 Difference]: Start difference. First operand 1490 states and 1844 transitions. Second operand 6 states. [2020-09-25 07:48:09,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:09,009 INFO L93 Difference]: Finished difference Result 2956 states and 3700 transitions. [2020-09-25 07:48:09,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:48:09,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 274 [2020-09-25 07:48:09,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:09,017 INFO L225 Difference]: With dead ends: 2956 [2020-09-25 07:48:09,017 INFO L226 Difference]: Without dead ends: 1601 [2020-09-25 07:48:09,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:48:09,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2020-09-25 07:48:09,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1496. [2020-09-25 07:48:09,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2020-09-25 07:48:09,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1852 transitions. [2020-09-25 07:48:09,081 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1852 transitions. Word has length 274 [2020-09-25 07:48:09,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:09,082 INFO L479 AbstractCegarLoop]: Abstraction has 1496 states and 1852 transitions. [2020-09-25 07:48:09,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:48:09,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1852 transitions. [2020-09-25 07:48:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-09-25 07:48:09,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:09,089 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:09,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:48:09,090 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:09,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:09,090 INFO L82 PathProgramCache]: Analyzing trace with hash -92086631, now seen corresponding path program 1 times [2020-09-25 07:48:09,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:09,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780376096] [2020-09-25 07:48:09,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:09,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:09,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:10,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:10,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-09-25 07:48:10,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:10,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1067 [2020-09-25 07:48:10,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:10,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:48:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-09-25 07:48:10,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:10,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:10,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:10,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:10,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:10,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:10,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:10,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:10,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:10,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:10,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:10,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:10,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 07:48:10,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780376096] [2020-09-25 07:48:10,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:10,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:48:10,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119783840] [2020-09-25 07:48:10,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:48:10,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:10,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:48:10,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:48:10,446 INFO L87 Difference]: Start difference. First operand 1496 states and 1852 transitions. Second operand 6 states. [2020-09-25 07:48:10,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:10,765 INFO L93 Difference]: Finished difference Result 3008 states and 3759 transitions. [2020-09-25 07:48:10,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:48:10,766 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 295 [2020-09-25 07:48:10,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:10,778 INFO L225 Difference]: With dead ends: 3008 [2020-09-25 07:48:10,779 INFO L226 Difference]: Without dead ends: 1681 [2020-09-25 07:48:10,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:48:10,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2020-09-25 07:48:10,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1566. [2020-09-25 07:48:10,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1566 states. [2020-09-25 07:48:10,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 1941 transitions. [2020-09-25 07:48:10,860 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 1941 transitions. Word has length 295 [2020-09-25 07:48:10,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:10,861 INFO L479 AbstractCegarLoop]: Abstraction has 1566 states and 1941 transitions. [2020-09-25 07:48:10,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:48:10,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 1941 transitions. [2020-09-25 07:48:10,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-09-25 07:48:10,874 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:10,875 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:10,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:48:10,876 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:10,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:10,876 INFO L82 PathProgramCache]: Analyzing trace with hash -652006092, now seen corresponding path program 1 times [2020-09-25 07:48:10,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:10,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958541286] [2020-09-25 07:48:10,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:10,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:11,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-09-25 07:48:11,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:11,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-09-25 07:48:11,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:11,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:11,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:11,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:48:11,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-25 07:48:11,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:11,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:11,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:11,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:11,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:11,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:11,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:11,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:11,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:11,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:11,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:12,002 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 07:48:12,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958541286] [2020-09-25 07:48:12,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:12,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:48:12,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230041617] [2020-09-25 07:48:12,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:48:12,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:12,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:48:12,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:48:12,005 INFO L87 Difference]: Start difference. First operand 1566 states and 1941 transitions. Second operand 6 states. [2020-09-25 07:48:12,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:12,336 INFO L93 Difference]: Finished difference Result 3228 states and 4128 transitions. [2020-09-25 07:48:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:48:12,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 297 [2020-09-25 07:48:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:12,345 INFO L225 Difference]: With dead ends: 3228 [2020-09-25 07:48:12,346 INFO L226 Difference]: Without dead ends: 1828 [2020-09-25 07:48:12,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:48:12,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2020-09-25 07:48:12,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1573. [2020-09-25 07:48:12,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1573 states. [2020-09-25 07:48:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 1942 transitions. [2020-09-25 07:48:12,409 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 1942 transitions. Word has length 297 [2020-09-25 07:48:12,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:12,410 INFO L479 AbstractCegarLoop]: Abstraction has 1573 states and 1942 transitions. [2020-09-25 07:48:12,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:48:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 1942 transitions. [2020-09-25 07:48:12,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-09-25 07:48:12,417 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:12,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:12,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:48:12,418 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:12,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:12,419 INFO L82 PathProgramCache]: Analyzing trace with hash -638739787, now seen corresponding path program 1 times [2020-09-25 07:48:12,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:12,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247159595] [2020-09-25 07:48:12,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:48:12,471 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:48:12,472 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:48:12,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 07:48:12,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:48:12 BoogieIcfgContainer [2020-09-25 07:48:12,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:48:12,537 INFO L168 Benchmark]: Toolchain (without parser) took 20417.74 ms. Allocated memory was 140.0 MB in the beginning and 508.6 MB in the end (delta: 368.6 MB). Free memory was 101.7 MB in the beginning and 364.2 MB in the end (delta: -262.5 MB). Peak memory consumption was 106.0 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:12,538 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:48:12,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.05 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 177.9 MB in the end (delta: -76.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:12,540 INFO L168 Benchmark]: Boogie Preprocessor took 71.73 ms. Allocated memory is still 202.9 MB. Free memory was 177.9 MB in the beginning and 175.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:12,544 INFO L168 Benchmark]: RCFGBuilder took 1028.13 ms. Allocated memory is still 202.9 MB. Free memory was 175.0 MB in the beginning and 107.3 MB in the end (delta: 67.7 MB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:12,545 INFO L168 Benchmark]: TraceAbstraction took 18719.38 ms. Allocated memory was 202.9 MB in the beginning and 508.6 MB in the end (delta: 305.7 MB). Free memory was 107.3 MB in the beginning and 364.2 MB in the end (delta: -257.0 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:12,556 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 589.05 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 177.9 MB in the end (delta: -76.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.73 ms. Allocated memory is still 202.9 MB. Free memory was 177.9 MB in the beginning and 175.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1028.13 ms. Allocated memory is still 202.9 MB. Free memory was 175.0 MB in the beginning and 107.3 MB in the end (delta: 67.7 MB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18719.38 ms. Allocated memory was 202.9 MB in the beginning and 508.6 MB in the end (delta: 305.7 MB). Free memory was 107.3 MB in the beginning and 364.2 MB in the end (delta: -257.0 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 573]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L578] int s ; [L582] s = 12292 [L583] CALL ssl3_connect(s) [L12] int s__info_callback = __VERIFIER_nondet_int() ; [L13] int s__in_handshake = __VERIFIER_nondet_int() ; [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int() ; [L18] int s__type ; [L19] int s__init_num ; [L20] int s__bbio = __VERIFIER_nondet_int() ; [L21] int s__wbio = __VERIFIER_nondet_int() ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int s__rwstate ; [L24] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L25] int s__debug = __VERIFIER_nondet_int() ; [L26] int s__shutdown ; [L27] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L32] int s__s3__change_cipher_spec ; [L33] int s__s3__flags = __VERIFIER_nondet_int() ; [L34] int s__s3__delay_buf_pop_ret ; [L35] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int s__session__compress_meth ; [L44] int buf ; [L45] unsigned long tmp ; [L46] unsigned long l ; [L47] int num1 = __VERIFIER_nondet_int() ; [L48] int cb ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int tmp___0 ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 = __VERIFIER_nondet_int() ; [L57] int tmp___4 = __VERIFIER_nondet_int() ; [L58] int tmp___5 = __VERIFIER_nondet_int() ; [L59] int tmp___6 = __VERIFIER_nondet_int() ; [L60] int tmp___7 = __VERIFIER_nondet_int() ; [L61] int tmp___8 = __VERIFIER_nondet_int() ; [L62] int tmp___9 = __VERIFIER_nondet_int() ; [L63] int blastFlag ; [L64] int __cil_tmp55 ; [L65] void *__cil_tmp56 ; [L66] unsigned long __cil_tmp57 ; [L67] unsigned long __cil_tmp58 = __VERIFIER_nondet_ulong() ; [L68] void *__cil_tmp59 ; [L69] unsigned long __cil_tmp60 ; [L70] unsigned long __cil_tmp61 ; [L71] unsigned long __cil_tmp62 ; [L72] unsigned long __cil_tmp63 ; [L73] unsigned long __cil_tmp64 ; [L74] long __cil_tmp65 = __VERIFIER_nondet_long() ; [L75] long __cil_tmp66 ; [L76] long __cil_tmp67 ; [L77] long __cil_tmp68 ; [L78] long __cil_tmp69 ; [L79] long __cil_tmp70 = __VERIFIER_nondet_long() ; [L80] long __cil_tmp71 ; [L81] long __cil_tmp72 ; [L82] long __cil_tmp73 ; [L83] long __cil_tmp74 ; [L87] s__state = initial_state [L88] blastFlag = 0 [L89] tmp = __VERIFIER_nondet_int() [L90] cb = 0 [L91] ret = -1 [L92] skip = 0 [L93] tmp___0 = 0 [L94] COND TRUE s__info_callback != 0 [L95] cb = s__info_callback [L101] s__in_handshake ++ [L102] COND FALSE !(tmp___1 + 12288) [L108] COND TRUE 1 [L110] state = s__state [L111] COND TRUE s__state == 12292 [L213] s__new_session = 1 [L214] s__state = 4096 [L215] s__ctx__stats__sess_connect_renegotiate ++ [L220] s__server = 0 [L221] COND TRUE cb != 0 [L225] __cil_tmp55 = s__version + 65280 [L226] COND FALSE !(__cil_tmp55 != 768) [L231] s__type = 4096 [L233] __cil_tmp56 = (void *)0 [L234] __cil_tmp57 = (unsigned long )__cil_tmp56 [L235] __cil_tmp58 = (unsigned long )s__init_buf___0 [L236] COND FALSE !(__cil_tmp58 == __cil_tmp57) [L254] COND FALSE !(! tmp___4) [L258] COND FALSE !(! tmp___5) [L262] s__state = 4368 [L263] s__ctx__stats__sess_connect ++ [L264] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND TRUE s__state == 4368 [L268] s__shutdown = 0 [L269] ret = __VERIFIER_nondet_int() [L270] COND TRUE blastFlag == 0 [L271] blastFlag = 1 [L273] COND FALSE !(ret <= 0) [L276] s__state = 4384 [L277] s__init_num = 0 [L279] __cil_tmp62 = (unsigned long )s__wbio [L280] __cil_tmp63 = (unsigned long )s__bbio [L281] COND TRUE __cil_tmp63 != __cil_tmp62 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND TRUE s__state == 4384 [L288] ret = __VERIFIER_nondet_int() [L289] COND TRUE blastFlag == 1 [L290] blastFlag = 2 [L296] COND FALSE !(ret <= 0) [L299] COND FALSE !(\read(s__hit)) [L302] s__state = 4400 [L304] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND TRUE s__state == 4400 [L309] __cil_tmp64 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L310] COND FALSE !(__cil_tmp64 + 256UL) [L313] ret = __VERIFIER_nondet_int() [L314] COND TRUE blastFlag == 2 [L315] blastFlag = 3 [L317] COND FALSE !(ret <= 0) [L322] s__state = 4416 [L323] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND FALSE !(s__state == 4400) [L141] COND FALSE !(s__state == 4401) [L144] COND TRUE s__state == 4416 [L327] ret = __VERIFIER_nondet_int() [L328] COND TRUE blastFlag == 3 [L329] blastFlag = 4 [L331] COND FALSE !(ret <= 0) [L334] s__state = 4432 [L335] s__init_num = 0 [L336] COND FALSE !(! tmp___6) [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND FALSE !(s__state == 4400) [L141] COND FALSE !(s__state == 4401) [L144] COND FALSE !(s__state == 4416) [L147] COND FALSE !(s__state == 4417) [L150] COND TRUE s__state == 4432 [L343] ret = __VERIFIER_nondet_int() [L344] COND TRUE blastFlag == 4 [L573] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 414 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.5s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3671 SDtfs, 5201 SDslu, 4322 SDs, 0 SdLazy, 857 SolverSat, 184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1573occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 636 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 2567 NumberOfCodeBlocks, 2567 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2259 ConstructedInterpolants, 0 QuantifiedInterpolants, 1091055 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 728/728 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...