/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 SequenceOfStatements --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=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/s3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:37:57,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:37:57,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:37:57,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:37:57,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:37:57,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:37:57,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:37:57,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:37:57,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:37:57,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:37:57,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:37:57,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:37:57,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:37:57,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:37:57,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:37:57,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:37:57,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:37:57,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:37:57,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:37:57,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:37:57,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:37:57,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:37:57,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:37:57,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:37:57,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:37:57,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:37:57,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:37:57,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:37:57,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:37:57,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:37:57,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:37:57,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:37:57,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:37:57,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:37:57,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:37:57,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:37:57,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:37:57,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:37:57,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:37:57,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:37:57,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:37:57,889 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 [2020-10-14 05:37:57,940 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:37:57,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:37:57,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:37:57,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:37:57,945 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:37:57,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:37:57,946 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:37:57,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:37:57,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:37:57,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:37:57,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:37:57,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:37:57,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:37:57,947 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:37:57,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:37:57,947 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:37:57,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:37:57,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:37:57,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:37:57,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:37:57,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:37:57,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:37:57,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:37:57,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:37:57,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:37:57,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:37:57,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:37:57,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:37:57,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:37:57,954 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 -> SequenceOfStatements 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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 05:37:58,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:37:58,302 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:37:58,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:37:58,307 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:37:58,307 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:37:58,308 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/s3.i [2020-10-14 05:37:58,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b56e4da62/eefdd55a5f054cb79f1f8852a6d65cc8/FLAG5ab087d6f [2020-10-14 05:37:58,966 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:37:58,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/s3.i [2020-10-14 05:37:58,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b56e4da62/eefdd55a5f054cb79f1f8852a6d65cc8/FLAG5ab087d6f [2020-10-14 05:37:59,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b56e4da62/eefdd55a5f054cb79f1f8852a6d65cc8 [2020-10-14 05:37:59,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:37:59,220 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:37:59,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:37:59,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:37:59,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:37:59,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:37:59" (1/1) ... [2020-10-14 05:37:59,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256ae262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:37:59, skipping insertion in model container [2020-10-14 05:37:59,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:37:59" (1/1) ... [2020-10-14 05:37:59,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:37:59,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:37:59,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:37:59,960 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:38:00,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:38:00,127 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:38:00,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:38:00 WrapperNode [2020-10-14 05:38:00,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:38:00,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:38:00,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:38:00,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:38:00,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:38:00" (1/1) ... [2020-10-14 05:38:00,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:38:00" (1/1) ... [2020-10-14 05:38:00,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:38:00" (1/1) ... [2020-10-14 05:38:00,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:38:00" (1/1) ... [2020-10-14 05:38:00,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:38:00" (1/1) ... [2020-10-14 05:38:00,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:38:00" (1/1) ... [2020-10-14 05:38:00,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:38:00" (1/1) ... [2020-10-14 05:38:00,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:38:00,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:38:00,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:38:00,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:38:00,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:38:00" (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 [2020-10-14 05:38:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:38:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:38:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2020-10-14 05:38:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2020-10-14 05:38:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:38:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-14 05:38:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2020-10-14 05:38:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 05:38:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-14 05:38:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:38:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 05:38:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 05:38:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 05:38:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 05:38:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2020-10-14 05:38:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2020-10-14 05:38:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-14 05:38:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2020-10-14 05:38:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-14 05:38:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 05:38:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:38:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 05:38:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 05:38:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 05:38:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 05:38:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 05:38:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 05:38:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:38:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 05:38:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:38:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 05:38:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-14 05:38:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 05:38:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-14 05:38:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 05:38:00,864 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 05:38:01,596 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-14 05:38:01,597 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-14 05:38:01,623 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:38:01,623 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 05:38:01,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:38:01 BoogieIcfgContainer [2020-10-14 05:38:01,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:38:01,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:38:01,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:38:01,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:38:01,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:37:59" (1/3) ... [2020-10-14 05:38:01,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f56a9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:38:01, skipping insertion in model container [2020-10-14 05:38:01,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:38:00" (2/3) ... [2020-10-14 05:38:01,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f56a9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:38:01, skipping insertion in model container [2020-10-14 05:38:01,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:38:01" (3/3) ... [2020-10-14 05:38:01,637 INFO L109 eAbstractionObserver]: Analyzing ICFG s3.i [2020-10-14 05:38:01,648 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:38:01,657 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:38:01,669 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:38:01,693 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:38:01,693 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:38:01,693 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:38:01,693 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:38:01,694 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:38:01,694 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:38:01,694 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:38:01,694 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:38:01,717 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2020-10-14 05:38:01,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 05:38:01,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:38:01,727 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] [2020-10-14 05:38:01,727 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:38:01,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:38:01,733 INFO L82 PathProgramCache]: Analyzing trace with hash -201939892, now seen corresponding path program 1 times [2020-10-14 05:38:01,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:38:01,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484403873] [2020-10-14 05:38:01,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:38:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:02,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:02,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:02,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:03,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:03,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:38:03,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:38:03,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1394 [2020-10-14 05:38:03,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:03,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:03,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:38:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:38:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 05:38:03,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 05:38:03,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:38:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:03,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:03,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:03,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:38:03,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:38:03,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:38:03,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:03,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:03,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:38:03,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:38:03,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:38:03,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:03,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:38:03,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484403873] [2020-10-14 05:38:03,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:38:03,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:38:03,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570218515] [2020-10-14 05:38:03,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:38:03,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:38:03,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:38:03,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:38:03,524 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 4 states. [2020-10-14 05:38:04,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:38:04,196 INFO L93 Difference]: Finished difference Result 387 states and 641 transitions. [2020-10-14 05:38:04,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:38:04,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-14 05:38:04,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:38:04,223 INFO L225 Difference]: With dead ends: 387 [2020-10-14 05:38:04,223 INFO L226 Difference]: Without dead ends: 225 [2020-10-14 05:38:04,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:38:04,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-10-14 05:38:04,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2020-10-14 05:38:04,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-14 05:38:04,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 331 transitions. [2020-10-14 05:38:04,339 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 331 transitions. Word has length 30 [2020-10-14 05:38:04,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:38:04,342 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 331 transitions. [2020-10-14 05:38:04,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:38:04,343 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 331 transitions. [2020-10-14 05:38:04,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 05:38:04,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:38:04,347 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] [2020-10-14 05:38:04,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:38:04,347 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:38:04,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:38:04,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1621387262, now seen corresponding path program 1 times [2020-10-14 05:38:04,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:38:04,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353716837] [2020-10-14 05:38:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:38:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:04,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:04,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:04,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:04,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:07,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:09,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:09,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 05:38:09,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:38:09,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 05:38:09,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:09,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:09,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:38:09,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 05:38:09,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 05:38:09,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 05:38:09,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:38:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:09,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:09,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:09,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:38:09,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:38:09,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:38:09,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:09,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:09,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:38:09,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:38:09,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:38:09,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:38:09,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353716837] [2020-10-14 05:38:09,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:38:09,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:38:09,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154060290] [2020-10-14 05:38:09,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:38:09,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:38:09,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:38:09,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:38:09,505 INFO L87 Difference]: Start difference. First operand 225 states and 331 transitions. Second operand 4 states. [2020-10-14 05:38:10,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:38:10,001 INFO L93 Difference]: Finished difference Result 437 states and 650 transitions. [2020-10-14 05:38:10,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:38:10,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-10-14 05:38:10,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:38:10,007 INFO L225 Difference]: With dead ends: 437 [2020-10-14 05:38:10,008 INFO L226 Difference]: Without dead ends: 330 [2020-10-14 05:38:10,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:38:10,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-10-14 05:38:10,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2020-10-14 05:38:10,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-10-14 05:38:10,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 486 transitions. [2020-10-14 05:38:10,061 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 486 transitions. Word has length 45 [2020-10-14 05:38:10,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:38:10,062 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 486 transitions. [2020-10-14 05:38:10,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:38:10,063 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 486 transitions. [2020-10-14 05:38:10,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 05:38:10,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:38:10,071 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:38:10,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:38:10,072 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:38:10,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:38:10,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1468089782, now seen corresponding path program 1 times [2020-10-14 05:38:10,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:38:10,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432168595] [2020-10-14 05:38:10,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:38:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:10,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:10,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:10,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:11,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:13,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:13,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 05:38:13,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:38:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3829 [2020-10-14 05:38:13,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:13,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:38:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-14 05:38:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 05:38:13,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:14,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:38:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:14,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:14,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:14,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:38:14,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:38:14,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:38:14,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:14,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:14,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:38:14,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:38:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:38:14,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:14,043 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 05:38:14,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432168595] [2020-10-14 05:38:14,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:38:14,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:38:14,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7810564] [2020-10-14 05:38:14,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:38:14,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:38:14,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:38:14,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:38:14,046 INFO L87 Difference]: Start difference. First operand 330 states and 486 transitions. Second operand 4 states. [2020-10-14 05:38:14,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:38:14,478 INFO L93 Difference]: Finished difference Result 647 states and 960 transitions. [2020-10-14 05:38:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:38:14,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-14 05:38:14,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:38:14,482 INFO L225 Difference]: With dead ends: 647 [2020-10-14 05:38:14,482 INFO L226 Difference]: Without dead ends: 435 [2020-10-14 05:38:14,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:38:14,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-10-14 05:38:14,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2020-10-14 05:38:14,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2020-10-14 05:38:14,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 642 transitions. [2020-10-14 05:38:14,498 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 642 transitions. Word has length 63 [2020-10-14 05:38:14,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:38:14,499 INFO L479 AbstractCegarLoop]: Abstraction has 435 states and 642 transitions. [2020-10-14 05:38:14,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:38:14,499 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 642 transitions. [2020-10-14 05:38:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 05:38:14,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:38:14,503 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:38:14,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 05:38:14,503 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:38:14,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:38:14,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1824526454, now seen corresponding path program 1 times [2020-10-14 05:38:14,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:38:14,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943042833] [2020-10-14 05:38:14,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:38:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:14,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:14,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:14,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:16,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:16,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:16,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:19,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:19,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 05:38:19,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 05:38:19,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 05:38:19,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:19,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:19,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:38:19,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-14 05:38:19,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 05:38:19,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:19,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:38:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:19,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:19,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:19,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:38:19,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:38:19,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:38:19,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:19,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:19,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:38:19,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:38:19,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:38:19,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:38:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-14 05:38:19,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943042833] [2020-10-14 05:38:19,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:38:19,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:38:19,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979450121] [2020-10-14 05:38:19,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:38:19,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:38:19,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:38:19,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:38:19,619 INFO L87 Difference]: Start difference. First operand 435 states and 642 transitions. Second operand 4 states. [2020-10-14 05:38:19,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:38:19,987 INFO L93 Difference]: Finished difference Result 542 states and 802 transitions. [2020-10-14 05:38:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:38:19,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-10-14 05:38:19,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:38:19,991 INFO L225 Difference]: With dead ends: 542 [2020-10-14 05:38:19,991 INFO L226 Difference]: Without dead ends: 540 [2020-10-14 05:38:19,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:38:19,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-10-14 05:38:20,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2020-10-14 05:38:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2020-10-14 05:38:20,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 799 transitions. [2020-10-14 05:38:20,008 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 799 transitions. Word has length 83 [2020-10-14 05:38:20,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:38:20,009 INFO L479 AbstractCegarLoop]: Abstraction has 540 states and 799 transitions. [2020-10-14 05:38:20,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:38:20,009 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 799 transitions. [2020-10-14 05:38:20,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 05:38:20,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:38:20,012 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-10-14 05:38:20,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 05:38:20,013 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:38:20,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:38:20,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1679819835, now seen corresponding path program 1 times [2020-10-14 05:38:20,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:38:20,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679788903] [2020-10-14 05:38:20,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:38:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:20,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:20,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:20,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:22,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:24,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:24,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 05:38:24,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:38:24,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4929 [2020-10-14 05:38:24,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:24,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:24,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:38:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 05:38:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 05:38:24,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:25,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:38:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:25,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:25,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:25,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:38:25,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:38:25,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:38:25,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:25,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:25,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:38:25,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:38:25,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:38:25,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-14 05:38:25,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679788903] [2020-10-14 05:38:25,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:38:25,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:38:25,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563549075] [2020-10-14 05:38:25,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:38:25,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:38:25,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:38:25,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:38:25,076 INFO L87 Difference]: Start difference. First operand 540 states and 799 transitions. Second operand 4 states. [2020-10-14 05:38:25,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:38:25,464 INFO L93 Difference]: Finished difference Result 542 states and 800 transitions. [2020-10-14 05:38:25,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:38:25,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2020-10-14 05:38:25,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:38:25,470 INFO L225 Difference]: With dead ends: 542 [2020-10-14 05:38:25,470 INFO L226 Difference]: Without dead ends: 540 [2020-10-14 05:38:25,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:38:25,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-10-14 05:38:25,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2020-10-14 05:38:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2020-10-14 05:38:25,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 798 transitions. [2020-10-14 05:38:25,495 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 798 transitions. Word has length 104 [2020-10-14 05:38:25,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:38:25,496 INFO L479 AbstractCegarLoop]: Abstraction has 540 states and 798 transitions. [2020-10-14 05:38:25,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:38:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 798 transitions. [2020-10-14 05:38:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-14 05:38:25,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:38:25,502 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-10-14 05:38:25,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 05:38:25,503 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:38:25,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:38:25,505 INFO L82 PathProgramCache]: Analyzing trace with hash 459630976, now seen corresponding path program 1 times [2020-10-14 05:38:25,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:38:25,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216718735] [2020-10-14 05:38:25,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:38:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:25,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:25,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:25,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:26,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:27,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:30,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:30,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 05:38:30,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:38:30,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 05:38:30,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:30,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:38:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-14 05:38:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 05:38:30,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:38:30,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:38:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:30,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:30,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:30,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:38:30,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:38:30,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:38:30,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:30,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:30,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:38:30,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:38:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:38:30,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:38:30,647 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-14 05:38:30,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216718735] [2020-10-14 05:38:30,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:38:30,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:38:30,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432797458] [2020-10-14 05:38:30,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:38:30,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:38:30,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:38:30,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:38:30,651 INFO L87 Difference]: Start difference. First operand 540 states and 798 transitions. Second operand 5 states. [2020-10-14 05:38:31,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:38:31,696 INFO L93 Difference]: Finished difference Result 1529 states and 2275 transitions. [2020-10-14 05:38:31,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:38:31,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-10-14 05:38:31,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:38:31,703 INFO L225 Difference]: With dead ends: 1529 [2020-10-14 05:38:31,704 INFO L226 Difference]: Without dead ends: 1002 [2020-10-14 05:38:31,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:38:31,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2020-10-14 05:38:31,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 670. [2020-10-14 05:38:31,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2020-10-14 05:38:31,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1028 transitions. [2020-10-14 05:38:31,754 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1028 transitions. Word has length 106 [2020-10-14 05:38:31,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:38:31,754 INFO L479 AbstractCegarLoop]: Abstraction has 670 states and 1028 transitions. [2020-10-14 05:38:31,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:38:31,755 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1028 transitions. [2020-10-14 05:38:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-14 05:38:31,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:38:31,758 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-10-14 05:38:31,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 05:38:31,758 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:38:31,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:38:31,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1359181291, now seen corresponding path program 1 times [2020-10-14 05:38:31,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:38:31,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853739055] [2020-10-14 05:38:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:38:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:31,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:31,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:31,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:33,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:33,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:36,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:36,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 05:38:36,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:38:36,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 05:38:36,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:36,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:36,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:38:36,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-14 05:38:36,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 05:38:36,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:36,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:38:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:36,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:36,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:36,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:38:36,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:38:36,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:38:36,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:36,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:36,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:38:36,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:38:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:38:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:36,887 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-14 05:38:36,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853739055] [2020-10-14 05:38:36,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:38:36,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:38:36,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740449338] [2020-10-14 05:38:36,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:38:36,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:38:36,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:38:36,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:38:36,889 INFO L87 Difference]: Start difference. First operand 670 states and 1028 transitions. Second operand 5 states. [2020-10-14 05:38:37,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:38:37,816 INFO L93 Difference]: Finished difference Result 1637 states and 2473 transitions. [2020-10-14 05:38:37,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:38:37,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-10-14 05:38:37,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:38:37,822 INFO L225 Difference]: With dead ends: 1637 [2020-10-14 05:38:37,822 INFO L226 Difference]: Without dead ends: 980 [2020-10-14 05:38:37,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:38:37,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2020-10-14 05:38:37,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 675. [2020-10-14 05:38:37,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2020-10-14 05:38:37,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 1033 transitions. [2020-10-14 05:38:37,853 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 1033 transitions. Word has length 107 [2020-10-14 05:38:37,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:38:37,854 INFO L479 AbstractCegarLoop]: Abstraction has 675 states and 1033 transitions. [2020-10-14 05:38:37,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:38:37,854 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 1033 transitions. [2020-10-14 05:38:37,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 05:38:37,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:38:37,857 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 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] [2020-10-14 05:38:37,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 05:38:37,857 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:38:37,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:38:37,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1088798303, now seen corresponding path program 1 times [2020-10-14 05:38:37,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:38:37,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886235115] [2020-10-14 05:38:37,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:38:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:37,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:37,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:37,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:38,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:41,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:42,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:42,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:42,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 05:38:42,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 05:38:42,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 05:38:42,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:42,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:42,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:38:42,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-14 05:38:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 05:38:42,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:38:42,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:38:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:42,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:42,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:42,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:38:42,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:38:42,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:38:42,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:42,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:38:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:38:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:38:42,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:43,010 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-10-14 05:38:43,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886235115] [2020-10-14 05:38:43,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:38:43,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:38:43,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262337212] [2020-10-14 05:38:43,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:38:43,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:38:43,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:38:43,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:38:43,013 INFO L87 Difference]: Start difference. First operand 675 states and 1033 transitions. Second operand 5 states. [2020-10-14 05:38:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:38:43,984 INFO L93 Difference]: Finished difference Result 1804 states and 2750 transitions. [2020-10-14 05:38:43,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:38:43,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-10-14 05:38:43,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:38:43,991 INFO L225 Difference]: With dead ends: 1804 [2020-10-14 05:38:43,991 INFO L226 Difference]: Without dead ends: 1142 [2020-10-14 05:38:43,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:38:43,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-10-14 05:38:44,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 780. [2020-10-14 05:38:44,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2020-10-14 05:38:44,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1208 transitions. [2020-10-14 05:38:44,021 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1208 transitions. Word has length 121 [2020-10-14 05:38:44,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:38:44,022 INFO L479 AbstractCegarLoop]: Abstraction has 780 states and 1208 transitions. [2020-10-14 05:38:44,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:38:44,022 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1208 transitions. [2020-10-14 05:38:44,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 05:38:44,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:38:44,025 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 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] [2020-10-14 05:38:44,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 05:38:44,025 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:38:44,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:38:44,026 INFO L82 PathProgramCache]: Analyzing trace with hash 477959647, now seen corresponding path program 1 times [2020-10-14 05:38:44,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:38:44,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438309160] [2020-10-14 05:38:44,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:38:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:44,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:44,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:44,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:45,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:45,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:49,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:49,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 05:38:49,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:38:49,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-14 05:38:49,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:49,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:38:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-14 05:38:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 05:38:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:49,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:38:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:49,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:49,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:49,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:38:49,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:38:49,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 05:38:49,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:49,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:38:49,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:38:49,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:38:49,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:49,416 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-14 05:38:49,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438309160] [2020-10-14 05:38:49,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:38:49,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:38:49,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994393927] [2020-10-14 05:38:49,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:38:49,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:38:49,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:38:49,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:38:49,419 INFO L87 Difference]: Start difference. First operand 780 states and 1208 transitions. Second operand 6 states. [2020-10-14 05:38:50,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:38:50,370 INFO L93 Difference]: Finished difference Result 1712 states and 2644 transitions. [2020-10-14 05:38:50,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:38:50,370 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2020-10-14 05:38:50,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:38:50,376 INFO L225 Difference]: With dead ends: 1712 [2020-10-14 05:38:50,376 INFO L226 Difference]: Without dead ends: 945 [2020-10-14 05:38:50,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:38:50,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2020-10-14 05:38:50,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 865. [2020-10-14 05:38:50,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 865 states. [2020-10-14 05:38:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1348 transitions. [2020-10-14 05:38:50,428 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1348 transitions. Word has length 121 [2020-10-14 05:38:50,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:38:50,429 INFO L479 AbstractCegarLoop]: Abstraction has 865 states and 1348 transitions. [2020-10-14 05:38:50,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:38:50,429 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1348 transitions. [2020-10-14 05:38:50,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 05:38:50,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:38:50,433 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:38:50,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 05:38:50,433 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:38:50,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:38:50,434 INFO L82 PathProgramCache]: Analyzing trace with hash 348654304, now seen corresponding path program 1 times [2020-10-14 05:38:50,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:38:50,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825654795] [2020-10-14 05:38:50,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:38:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:50,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:50,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:50,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:50,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:55,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:55,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:55,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 05:38:55,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:38:55,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 05:38:55,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:55,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:55,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:38:55,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 05:38:55,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 05:38:55,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:38:55,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:38:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:55,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:55,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:38:55,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:38:55,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:38:55,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:38:55,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:38:55,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:38:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:38:55,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:38:55,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:38:55,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:38:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-14 05:38:55,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825654795] [2020-10-14 05:38:55,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:38:55,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:38:55,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756092576] [2020-10-14 05:38:55,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:38:55,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:38:55,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:38:55,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:38:55,568 INFO L87 Difference]: Start difference. First operand 865 states and 1348 transitions. Second operand 5 states. [2020-10-14 05:38:56,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:38:56,505 INFO L93 Difference]: Finished difference Result 2179 states and 3375 transitions. [2020-10-14 05:38:56,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:38:56,505 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-10-14 05:38:56,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:38:56,514 INFO L225 Difference]: With dead ends: 2179 [2020-10-14 05:38:56,514 INFO L226 Difference]: Without dead ends: 1327 [2020-10-14 05:38:56,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:38:56,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2020-10-14 05:38:56,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 995. [2020-10-14 05:38:56,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-10-14 05:38:56,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1578 transitions. [2020-10-14 05:38:56,562 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1578 transitions. Word has length 121 [2020-10-14 05:38:56,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:38:56,563 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1578 transitions. [2020-10-14 05:38:56,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:38:56,563 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1578 transitions. [2020-10-14 05:38:56,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-14 05:38:56,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:38:56,568 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:38:56,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 05:38:56,568 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:38:56,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:38:56,569 INFO L82 PathProgramCache]: Analyzing trace with hash -2081095541, now seen corresponding path program 1 times [2020-10-14 05:38:56,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:38:56,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026336060] [2020-10-14 05:38:56,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:38:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:38:56,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:56,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:56,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:38:56,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:01,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:01,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:01,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 05:39:01,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:39:01,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 05:39:01,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:01,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:39:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 05:39:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 05:39:01,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:01,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:01,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:01,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:01,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:01,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:01,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:01,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:01,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:01,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:01,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:01,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:01,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-14 05:39:01,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026336060] [2020-10-14 05:39:01,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:01,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:39:01,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845704846] [2020-10-14 05:39:01,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:39:01,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:01,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:39:01,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:39:01,695 INFO L87 Difference]: Start difference. First operand 995 states and 1578 transitions. Second operand 5 states. [2020-10-14 05:39:02,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:02,583 INFO L93 Difference]: Finished difference Result 2287 states and 3573 transitions. [2020-10-14 05:39:02,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:39:02,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-10-14 05:39:02,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:02,590 INFO L225 Difference]: With dead ends: 2287 [2020-10-14 05:39:02,590 INFO L226 Difference]: Without dead ends: 1305 [2020-10-14 05:39:02,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:39:02,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2020-10-14 05:39:02,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 865. [2020-10-14 05:39:02,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 865 states. [2020-10-14 05:39:02,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1348 transitions. [2020-10-14 05:39:02,631 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1348 transitions. Word has length 122 [2020-10-14 05:39:02,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:02,632 INFO L479 AbstractCegarLoop]: Abstraction has 865 states and 1348 transitions. [2020-10-14 05:39:02,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:39:02,632 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1348 transitions. [2020-10-14 05:39:02,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-14 05:39:02,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:02,635 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:39:02,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 05:39:02,635 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:02,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1259221192, now seen corresponding path program 1 times [2020-10-14 05:39:02,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:02,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682110775] [2020-10-14 05:39:02,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:02,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:02,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:02,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:02,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:07,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:07,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:07,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 05:39:07,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:39:07,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 05:39:07,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:07,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:07,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:39:07,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-14 05:39:07,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 05:39:07,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:07,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:07,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:07,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:07,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:07,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:07,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:07,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:07,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:07,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:07,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:07,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:07,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-14 05:39:07,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682110775] [2020-10-14 05:39:07,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:07,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:39:07,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463299533] [2020-10-14 05:39:07,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:39:07,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:07,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:39:07,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:39:07,757 INFO L87 Difference]: Start difference. First operand 865 states and 1348 transitions. Second operand 5 states. [2020-10-14 05:39:08,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:08,722 INFO L93 Difference]: Finished difference Result 2079 states and 3200 transitions. [2020-10-14 05:39:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:39:08,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-14 05:39:08,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:08,732 INFO L225 Difference]: With dead ends: 2079 [2020-10-14 05:39:08,733 INFO L226 Difference]: Without dead ends: 1227 [2020-10-14 05:39:08,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:39:08,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2020-10-14 05:39:08,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 895. [2020-10-14 05:39:08,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-14 05:39:08,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1403 transitions. [2020-10-14 05:39:08,779 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1403 transitions. Word has length 124 [2020-10-14 05:39:08,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:08,779 INFO L479 AbstractCegarLoop]: Abstraction has 895 states and 1403 transitions. [2020-10-14 05:39:08,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:39:08,780 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1403 transitions. [2020-10-14 05:39:08,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-14 05:39:08,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:08,788 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:39:08,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 05:39:08,788 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:08,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:08,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1197181578, now seen corresponding path program 1 times [2020-10-14 05:39:08,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:08,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887589586] [2020-10-14 05:39:08,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:08,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:08,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:08,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:08,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:13,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:13,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:13,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 05:39:13,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:39:13,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 05:39:13,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:13,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:13,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:39:13,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-14 05:39:13,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 05:39:13,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:13,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:13,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:13,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:13,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:13,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:13,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:13,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:13,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:13,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:13,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:13,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:13,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:13,903 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-14 05:39:13,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887589586] [2020-10-14 05:39:13,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:13,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:39:13,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517044285] [2020-10-14 05:39:13,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:39:13,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:13,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:39:13,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:39:13,905 INFO L87 Difference]: Start difference. First operand 895 states and 1403 transitions. Second operand 5 states. [2020-10-14 05:39:14,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:14,897 INFO L93 Difference]: Finished difference Result 2239 states and 3485 transitions. [2020-10-14 05:39:14,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:39:14,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-14 05:39:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:14,905 INFO L225 Difference]: With dead ends: 2239 [2020-10-14 05:39:14,906 INFO L226 Difference]: Without dead ends: 1357 [2020-10-14 05:39:14,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:39:14,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2020-10-14 05:39:14,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 995. [2020-10-14 05:39:14,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-10-14 05:39:14,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1578 transitions. [2020-10-14 05:39:14,953 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1578 transitions. Word has length 124 [2020-10-14 05:39:14,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:14,953 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1578 transitions. [2020-10-14 05:39:14,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:39:14,954 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1578 transitions. [2020-10-14 05:39:14,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-14 05:39:14,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:14,957 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-14 05:39:14,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 05:39:14,957 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:14,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:14,958 INFO L82 PathProgramCache]: Analyzing trace with hash -574175956, now seen corresponding path program 1 times [2020-10-14 05:39:14,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:14,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218195046] [2020-10-14 05:39:14,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:15,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:15,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:15,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:15,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:19,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:20,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:20,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 05:39:20,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:39:20,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 05:39:20,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:20,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:39:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-10-14 05:39:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 05:39:20,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:20,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:20,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:20,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:20,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:20,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:20,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:20,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:20,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:20,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:20,078 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-14 05:39:20,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218195046] [2020-10-14 05:39:20,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:20,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:39:20,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823519147] [2020-10-14 05:39:20,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:39:20,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:20,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:39:20,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:39:20,080 INFO L87 Difference]: Start difference. First operand 995 states and 1578 transitions. Second operand 5 states. [2020-10-14 05:39:20,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:20,989 INFO L93 Difference]: Finished difference Result 2439 states and 3835 transitions. [2020-10-14 05:39:20,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:39:20,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-14 05:39:20,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:21,001 INFO L225 Difference]: With dead ends: 2439 [2020-10-14 05:39:21,001 INFO L226 Difference]: Without dead ends: 1457 [2020-10-14 05:39:21,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:39:21,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2020-10-14 05:39:21,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 995. [2020-10-14 05:39:21,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-10-14 05:39:21,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1578 transitions. [2020-10-14 05:39:21,050 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1578 transitions. Word has length 124 [2020-10-14 05:39:21,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:21,050 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1578 transitions. [2020-10-14 05:39:21,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:39:21,051 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1578 transitions. [2020-10-14 05:39:21,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-14 05:39:21,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:21,054 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:39:21,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 05:39:21,054 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:21,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:21,055 INFO L82 PathProgramCache]: Analyzing trace with hash -385628365, now seen corresponding path program 1 times [2020-10-14 05:39:21,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:21,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995671071] [2020-10-14 05:39:21,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:21,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:21,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:21,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:21,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:24,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:26,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:26,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 05:39:26,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:39:26,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 05:39:26,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:26,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:39:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-14 05:39:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 05:39:26,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:26,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:26,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:26,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:26,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:26,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:26,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:26,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:26,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:26,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:26,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:26,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:26,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:26,169 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-14 05:39:26,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995671071] [2020-10-14 05:39:26,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:26,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:39:26,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359000430] [2020-10-14 05:39:26,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:39:26,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:26,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:39:26,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:39:26,170 INFO L87 Difference]: Start difference. First operand 995 states and 1578 transitions. Second operand 5 states. [2020-10-14 05:39:27,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:27,062 INFO L93 Difference]: Finished difference Result 2317 states and 3628 transitions. [2020-10-14 05:39:27,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:39:27,063 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-10-14 05:39:27,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:27,072 INFO L225 Difference]: With dead ends: 2317 [2020-10-14 05:39:27,072 INFO L226 Difference]: Without dead ends: 1335 [2020-10-14 05:39:27,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:39:27,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2020-10-14 05:39:27,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 995. [2020-10-14 05:39:27,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-10-14 05:39:27,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1578 transitions. [2020-10-14 05:39:27,114 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1578 transitions. Word has length 125 [2020-10-14 05:39:27,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:27,114 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1578 transitions. [2020-10-14 05:39:27,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:39:27,114 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1578 transitions. [2020-10-14 05:39:27,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-14 05:39:27,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:27,117 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:39:27,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 05:39:27,118 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:27,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:27,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1537599669, now seen corresponding path program 1 times [2020-10-14 05:39:27,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:27,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890314544] [2020-10-14 05:39:27,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:27,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:27,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:27,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:27,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:31,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:32,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:32,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 05:39:32,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:39:32,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 05:39:32,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:32,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:39:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-14 05:39:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 05:39:32,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:32,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:32,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:32,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:32,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:32,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:32,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:32,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:32,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:32,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:32,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:32,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:32,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:32,251 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-14 05:39:32,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890314544] [2020-10-14 05:39:32,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:32,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:39:32,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88091590] [2020-10-14 05:39:32,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:39:32,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:32,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:39:32,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:39:32,254 INFO L87 Difference]: Start difference. First operand 995 states and 1578 transitions. Second operand 5 states. [2020-10-14 05:39:33,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:33,107 INFO L93 Difference]: Finished difference Result 2417 states and 3803 transitions. [2020-10-14 05:39:33,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:39:33,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-10-14 05:39:33,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:33,116 INFO L225 Difference]: With dead ends: 2417 [2020-10-14 05:39:33,116 INFO L226 Difference]: Without dead ends: 1435 [2020-10-14 05:39:33,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:39:33,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2020-10-14 05:39:33,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 995. [2020-10-14 05:39:33,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-10-14 05:39:33,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1578 transitions. [2020-10-14 05:39:33,156 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1578 transitions. Word has length 125 [2020-10-14 05:39:33,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:33,157 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1578 transitions. [2020-10-14 05:39:33,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:39:33,157 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1578 transitions. [2020-10-14 05:39:33,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-14 05:39:33,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:33,160 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-14 05:39:33,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 05:39:33,160 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:33,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:33,161 INFO L82 PathProgramCache]: Analyzing trace with hash -624062529, now seen corresponding path program 1 times [2020-10-14 05:39:33,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:33,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902672837] [2020-10-14 05:39:33,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:33,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:33,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:33,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:33,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:37,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:38,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:38,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 05:39:38,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:39:38,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 05:39:38,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:38,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:39:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-10-14 05:39:38,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 05:39:38,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:38,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:38,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:38,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:38,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:38,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:38,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:38,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:38,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:38,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:38,283 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-14 05:39:38,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902672837] [2020-10-14 05:39:38,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:38,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:39:38,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353183199] [2020-10-14 05:39:38,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:39:38,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:38,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:39:38,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:39:38,285 INFO L87 Difference]: Start difference. First operand 995 states and 1578 transitions. Second operand 5 states. [2020-10-14 05:39:39,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:39,138 INFO L93 Difference]: Finished difference Result 2287 states and 3573 transitions. [2020-10-14 05:39:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:39:39,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-10-14 05:39:39,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:39,146 INFO L225 Difference]: With dead ends: 2287 [2020-10-14 05:39:39,147 INFO L226 Difference]: Without dead ends: 1305 [2020-10-14 05:39:39,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:39:39,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2020-10-14 05:39:39,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 865. [2020-10-14 05:39:39,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 865 states. [2020-10-14 05:39:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1348 transitions. [2020-10-14 05:39:39,183 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1348 transitions. Word has length 125 [2020-10-14 05:39:39,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:39,183 INFO L479 AbstractCegarLoop]: Abstraction has 865 states and 1348 transitions. [2020-10-14 05:39:39,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:39:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1348 transitions. [2020-10-14 05:39:39,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-14 05:39:39,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:39,186 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 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] [2020-10-14 05:39:39,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 05:39:39,187 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:39,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:39,187 INFO L82 PathProgramCache]: Analyzing trace with hash 721171518, now seen corresponding path program 1 times [2020-10-14 05:39:39,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:39,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849880327] [2020-10-14 05:39:39,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:39,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:39,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:39,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:39,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 05:39:39,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:39:39,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 689 [2020-10-14 05:39:39,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:39,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:39,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:39:39,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:39:39,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 05:39:39,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:40,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:40,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:40,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:40,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:40,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:40,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:40,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:40,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:40,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:40,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:40,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:40,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-10-14 05:39:40,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849880327] [2020-10-14 05:39:40,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:40,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:39:40,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502116873] [2020-10-14 05:39:40,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:39:40,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:40,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:39:40,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:39:40,049 INFO L87 Difference]: Start difference. First operand 865 states and 1348 transitions. Second operand 6 states. [2020-10-14 05:39:40,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:40,947 INFO L93 Difference]: Finished difference Result 1802 states and 2804 transitions. [2020-10-14 05:39:40,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:39:40,948 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-10-14 05:39:40,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:40,952 INFO L225 Difference]: With dead ends: 1802 [2020-10-14 05:39:40,952 INFO L226 Difference]: Without dead ends: 950 [2020-10-14 05:39:40,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:39:40,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2020-10-14 05:39:40,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 873. [2020-10-14 05:39:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-10-14 05:39:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1361 transitions. [2020-10-14 05:39:40,989 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1361 transitions. Word has length 128 [2020-10-14 05:39:40,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:40,989 INFO L479 AbstractCegarLoop]: Abstraction has 873 states and 1361 transitions. [2020-10-14 05:39:40,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:39:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1361 transitions. [2020-10-14 05:39:40,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 05:39:40,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:40,993 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2020-10-14 05:39:40,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 05:39:40,993 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:40,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:40,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1060568859, now seen corresponding path program 1 times [2020-10-14 05:39:40,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:40,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392945201] [2020-10-14 05:39:40,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:41,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:41,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:41,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:41,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 05:39:41,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:39:41,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 844 [2020-10-14 05:39:41,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:41,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:39:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:39:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 05:39:41,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:41,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:41,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:41,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:41,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:41,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:41,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:41,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:41,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:41,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:41,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:41,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:41,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:39:41,956 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-10-14 05:39:41,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392945201] [2020-10-14 05:39:41,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:41,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:39:41,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097221410] [2020-10-14 05:39:41,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:39:41,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:41,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:39:41,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:39:41,958 INFO L87 Difference]: Start difference. First operand 873 states and 1361 transitions. Second operand 5 states. [2020-10-14 05:39:42,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:42,711 INFO L93 Difference]: Finished difference Result 1798 states and 2798 transitions. [2020-10-14 05:39:42,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:39:42,715 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-10-14 05:39:42,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:42,719 INFO L225 Difference]: With dead ends: 1798 [2020-10-14 05:39:42,719 INFO L226 Difference]: Without dead ends: 946 [2020-10-14 05:39:42,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:39:42,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2020-10-14 05:39:42,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 874. [2020-10-14 05:39:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 874 states. [2020-10-14 05:39:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1362 transitions. [2020-10-14 05:39:42,750 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1362 transitions. Word has length 129 [2020-10-14 05:39:42,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:42,751 INFO L479 AbstractCegarLoop]: Abstraction has 874 states and 1362 transitions. [2020-10-14 05:39:42,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:39:42,751 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1362 transitions. [2020-10-14 05:39:42,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-14 05:39:42,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:42,754 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2020-10-14 05:39:42,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 05:39:42,754 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:42,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:42,755 INFO L82 PathProgramCache]: Analyzing trace with hash 687102961, now seen corresponding path program 1 times [2020-10-14 05:39:42,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:42,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596535702] [2020-10-14 05:39:42,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 05:39:42,829 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 05:39:42,829 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 05:39:42,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 05:39:42,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:39:42 BoogieIcfgContainer [2020-10-14 05:39:42,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 05:39:42,879 INFO L168 Benchmark]: Toolchain (without parser) took 103658.96 ms. Allocated memory was 148.9 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 103.3 MB in the beginning and 548.3 MB in the end (delta: -445.0 MB). Peak memory consumption was 735.7 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:42,880 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 05:39:42,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 906.47 ms. Allocated memory was 148.9 MB in the beginning and 207.6 MB in the end (delta: 58.7 MB). Free memory was 102.8 MB in the beginning and 168.6 MB in the end (delta: -65.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:42,882 INFO L168 Benchmark]: Boogie Preprocessor took 133.89 ms. Allocated memory is still 207.6 MB. Free memory was 168.6 MB in the beginning and 161.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:42,882 INFO L168 Benchmark]: RCFGBuilder took 1366.10 ms. Allocated memory was 207.6 MB in the beginning and 234.9 MB in the end (delta: 27.3 MB). Free memory was 160.8 MB in the beginning and 177.6 MB in the end (delta: -16.8 MB). Peak memory consumption was 72.1 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:42,883 INFO L168 Benchmark]: TraceAbstraction took 101246.99 ms. Allocated memory was 234.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 176.0 MB in the beginning and 548.3 MB in the end (delta: -372.3 MB). Peak memory consumption was 722.4 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:42,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 906.47 ms. Allocated memory was 148.9 MB in the beginning and 207.6 MB in the end (delta: 58.7 MB). Free memory was 102.8 MB in the beginning and 168.6 MB in the end (delta: -65.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.89 ms. Allocated memory is still 207.6 MB. Free memory was 168.6 MB in the beginning and 161.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1366.10 ms. Allocated memory was 207.6 MB in the beginning and 234.9 MB in the end (delta: 27.3 MB). Free memory was 160.8 MB in the beginning and 177.6 MB in the end (delta: -16.8 MB). Peak memory consumption was 72.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 101246.99 ms. Allocated memory was 234.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 176.0 MB in the beginning and 548.3 MB in the end (delta: -372.3 MB). Peak memory consumption was 722.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1645]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 1330. Possible FailurePath: [L1039] static int init = 1; [L1040] static SSL_METHOD SSLv3_client_data ; [L1062] SSL *s ; [L1066] s = malloc (sizeof (SSL)) [L1067] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1068] s->ctx = malloc(sizeof(SSL_CTX)) [L1069] s->state = 12292 [L1070] s->version = __VERIFIER_nondet_int() [L1071] CALL ssl3_connect(s) [L1077] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1078] unsigned long tmp ; [L1079] unsigned long l ; [L1080] long num1 ; [L1081] void (*cb)() ; [L1082] int ret ; [L1083] int new_state ; [L1084] int state ; [L1085] int skip ; [L1086] int *tmp___0 ; [L1087] int tmp___1 = __VERIFIER_nondet_int(); [L1088] int tmp___2 = __VERIFIER_nondet_int(); [L1089] int tmp___3 ; [L1090] int tmp___4 ; [L1091] int tmp___5 ; [L1092] int tmp___6 ; [L1093] int tmp___7 ; [L1094] int tmp___8 ; [L1095] long tmp___9 ; [L1097] int blastFlag ; [L1100] blastFlag = 0 [L1101] s->state = 12292 [L1102] s->hit = __VERIFIER_nondet_int() [L1104] tmp = __VERIFIER_nondet_int() [L1105] cb = (void (*)())((void *)0) [L1106] ret = -1 [L1107] skip = 0 [L1108] tmp___0 = (int*)malloc(sizeof(int)) [L1109] *tmp___0 = 0 [L1110] EXPR s->info_callback [L1110] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1111] EXPR s->info_callback [L1111] cb = s->info_callback [L1119] EXPR s->in_handshake [L1119] s->in_handshake += 1 [L1120] COND FALSE !(tmp___1 & 12288) [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND TRUE s->state == 12292 [L1236] s->new_session = 1 [L1237] s->state = 4096 [L1238] EXPR s->ctx [L1238] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1238] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1243] s->server = 0 [L1244] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) [L1249] EXPR s->version [L1249] COND FALSE !((s->version & 65280) != 768) [L1255] s->type = 4096 [L1256] EXPR s->init_buf [L1256] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1268] tmp___4 = __VERIFIER_nondet_int() [L1269] COND FALSE !(! tmp___4) [L1275] tmp___5 = __VERIFIER_nondet_int() [L1276] COND FALSE !(! tmp___5) [L1282] s->state = 4368 [L1283] EXPR s->ctx [L1283] EXPR (s->ctx)->stats.sess_connect [L1283] (s->ctx)->stats.sess_connect += 1 [L1284] s->init_num = 0 [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND TRUE s->state == 4368 [L1288] s->shutdown = 0 [L1289] ret = __VERIFIER_nondet_int() [L1290] COND TRUE blastFlag == 0 [L1291] blastFlag = 1 [L1295] COND FALSE !(ret <= 0) [L1300] s->state = 4384 [L1301] s->init_num = 0 [L1302] EXPR s->bbio [L1302] EXPR s->wbio [L1302] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state [L1154] COND TRUE s->state == 4384 [L1310] ret = __VERIFIER_nondet_int() [L1311] COND TRUE blastFlag == 1 [L1312] blastFlag = 2 [L1316] COND FALSE !(ret <= 0) [L1321] s->hit [L1321] COND FALSE !(s->hit) [L1324] s->state = 4400 [L1326] s->init_num = 0 [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state [L1160] COND TRUE s->state == 4400 [L1330] EXPR s->s3 [L1330] EXPR (s->s3)->tmp.new_cipher [L1330] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1330] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1333] ret = __VERIFIER_nondet_int() [L1334] COND TRUE blastFlag == 2 [L1335] blastFlag = 3 [L1339] COND FALSE !(ret <= 0) [L1345] s->state = 4416 [L1346] s->init_num = 0 [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state [L1166] COND TRUE s->state == 4416 [L1350] ret = __VERIFIER_nondet_int() [L1351] COND TRUE blastFlag == 3 [L1352] blastFlag = 4 [L1356] COND FALSE !(ret <= 0) [L1361] s->state = 4432 [L1362] s->init_num = 0 [L1363] tmp___6 = __VERIFIER_nondet_int() [L1364] COND FALSE !(! tmp___6) [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 4416) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 4417) [L1172] EXPR s->state [L1172] COND TRUE s->state == 4432 [L1373] ret = __VERIFIER_nondet_int() [L1374] COND FALSE !(blastFlag == 5) [L1379] COND FALSE !(ret <= 0) [L1384] s->state = 4448 [L1385] s->init_num = 0 [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 4416) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 4417) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 4432) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 4433) [L1178] EXPR s->state [L1178] COND TRUE s->state == 4448 [L1389] ret = __VERIFIER_nondet_int() [L1390] COND TRUE blastFlag == 4 [L1645] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 168 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 101.1s, OverallIterations: 20, TraceHistogramMax: 7, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3973 SDtfs, 1985 SDslu, 5229 SDs, 0 SdLazy, 8372 SolverSat, 175 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 58 SyntacticMatches, 6 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=995occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 4376 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 83.6s InterpolantComputationTime, 2170 NumberOfCodeBlocks, 2170 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2008 ConstructedInterpolants, 0 QuantifiedInterpolants, 716858 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 2585/2585 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...