/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=BIGGEST --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/ssh/s3_clnt.blast.01.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 20:49:34,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 20:49:34,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 20:49:34,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 20:49:34,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 20:49:34,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 20:49:34,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 20:49:34,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 20:49:34,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 20:49:34,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 20:49:34,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 20:49:34,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 20:49:34,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 20:49:34,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 20:49:34,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 20:49:34,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 20:49:34,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 20:49:34,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 20:49:34,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 20:49:34,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 20:49:34,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 20:49:34,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 20:49:34,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 20:49:34,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 20:49:34,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 20:49:34,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 20:49:34,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 20:49:34,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 20:49:34,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 20:49:34,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 20:49:34,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 20:49:34,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 20:49:34,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 20:49:34,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 20:49:34,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 20:49:34,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 20:49:34,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 20:49:34,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 20:49:34,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 20:49:34,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 20:49:34,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 20:49:34,187 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 [2020-10-12 20:49:34,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 20:49:34,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 20:49:34,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 20:49:34,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 20:49:34,235 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 20:49:34,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 20:49:34,236 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 20:49:34,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 20:49:34,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 20:49:34,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 20:49:34,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 20:49:34,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 20:49:34,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 20:49:34,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 20:49:34,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 20:49:34,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 20:49:34,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 20:49:34,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 20:49:34,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 20:49:34,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 20:49:34,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 20:49:34,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 20:49:34,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 20:49:34,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 20:49:34,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 20:49:34,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 20:49:34,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 20:49:34,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 20:49:34,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 20:49:34,242 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 20:49:34,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 20:49:34,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 20:49:34,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 20:49:34,549 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 20:49:34,550 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 20:49:34,550 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh/s3_clnt.blast.01.i.cil-2.c [2020-10-12 20:49:34,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2db7c7eaa/57f29eaef0fc4f8ea944c432ed19468e/FLAG0a3223438 [2020-10-12 20:49:35,179 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 20:49:35,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh/s3_clnt.blast.01.i.cil-2.c [2020-10-12 20:49:35,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2db7c7eaa/57f29eaef0fc4f8ea944c432ed19468e/FLAG0a3223438 [2020-10-12 20:49:35,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2db7c7eaa/57f29eaef0fc4f8ea944c432ed19468e [2020-10-12 20:49:35,473 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 20:49:35,475 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 20:49:35,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 20:49:35,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 20:49:35,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 20:49:35,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:49:35" (1/1) ... [2020-10-12 20:49:35,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7429dfa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:49:35, skipping insertion in model container [2020-10-12 20:49:35,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:49:35" (1/1) ... [2020-10-12 20:49:35,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 20:49:35,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 20:49:36,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 20:49:36,163 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 20:49:36,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 20:49:36,380 INFO L208 MainTranslator]: Completed translation [2020-10-12 20:49:36,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:49:36 WrapperNode [2020-10-12 20:49:36,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 20:49:36,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 20:49:36,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 20:49:36,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 20:49:36,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:49:36" (1/1) ... [2020-10-12 20:49:36,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:49:36" (1/1) ... [2020-10-12 20:49:36,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:49:36" (1/1) ... [2020-10-12 20:49:36,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:49:36" (1/1) ... [2020-10-12 20:49:36,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:49:36" (1/1) ... [2020-10-12 20:49:36,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:49:36" (1/1) ... [2020-10-12 20:49:36,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:49:36" (1/1) ... [2020-10-12 20:49:36,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 20:49:36,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 20:49:36,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 20:49:36,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 20:49:36,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:49:36" (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 [2020-10-12 20:49:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 20:49:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 20:49:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2020-10-12 20:49:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2020-10-12 20:49:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 20:49:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-12 20:49:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2020-10-12 20:49:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-12 20:49:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-12 20:49:36,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 20:49:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 20:49:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 20:49:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 20:49:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-12 20:49:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-12 20:49:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-12 20:49:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2020-10-12 20:49:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2020-10-12 20:49:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-12 20:49:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2020-10-12 20:49:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-12 20:49:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 20:49:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 20:49:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 20:49:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 20:49:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 20:49:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 20:49:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 20:49:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-12 20:49:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 20:49:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 20:49:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 20:49:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-12 20:49:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-12 20:49:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-12 20:49:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-12 20:49:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 20:49:37,122 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 20:49:37,665 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-12 20:49:37,665 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-12 20:49:37,689 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 20:49:37,689 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 20:49:37,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:49:37 BoogieIcfgContainer [2020-10-12 20:49:37,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 20:49:37,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 20:49:37,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 20:49:37,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 20:49:37,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:49:35" (1/3) ... [2020-10-12 20:49:37,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7e101f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:49:37, skipping insertion in model container [2020-10-12 20:49:37,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:49:36" (2/3) ... [2020-10-12 20:49:37,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7e101f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:49:37, skipping insertion in model container [2020-10-12 20:49:37,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:49:37" (3/3) ... [2020-10-12 20:49:37,703 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-2.c [2020-10-12 20:49:37,714 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 20:49:37,722 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 20:49:37,737 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 20:49:37,764 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 20:49:37,764 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 20:49:37,764 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 20:49:37,764 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 20:49:37,765 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 20:49:37,765 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 20:49:37,765 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 20:49:37,765 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 20:49:37,787 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2020-10-12 20:49:37,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 20:49:37,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:49:37,797 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] [2020-10-12 20:49:37,798 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:49:37,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:49:37,804 INFO L82 PathProgramCache]: Analyzing trace with hash -201939892, now seen corresponding path program 1 times [2020-10-12 20:49:37,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:49:37,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495426303] [2020-10-12 20:49:37,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:49:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:38,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:38,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:38,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:39,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:39,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 20:49:39,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:49:39,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1192 [2020-10-12 20:49:39,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:39,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:49:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 20:49:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 20:49:39,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 20:49:39,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:49:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:39,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:39,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:39,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:49:39,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:49:39,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 20:49:39,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:39,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:49:39,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:49:39,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:49:39,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:49:39,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 20:49:39,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495426303] [2020-10-12 20:49:39,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:49:39,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:49:39,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119816738] [2020-10-12 20:49:39,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:49:39,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:49:39,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:49:39,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:49:39,426 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 5 states. [2020-10-12 20:49:40,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:49:40,188 INFO L93 Difference]: Finished difference Result 271 states and 444 transitions. [2020-10-12 20:49:40,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:49:40,190 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-12 20:49:40,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:49:40,203 INFO L225 Difference]: With dead ends: 271 [2020-10-12 20:49:40,203 INFO L226 Difference]: Without dead ends: 124 [2020-10-12 20:49:40,207 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 [2020-10-12 20:49:40,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-12 20:49:40,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2020-10-12 20:49:40,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-12 20:49:40,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 180 transitions. [2020-10-12 20:49:40,260 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 180 transitions. Word has length 30 [2020-10-12 20:49:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:49:40,260 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 180 transitions. [2020-10-12 20:49:40,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:49:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 180 transitions. [2020-10-12 20:49:40,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-12 20:49:40,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:49:40,263 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 20:49:40,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 20:49:40,263 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:49:40,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:49:40,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1808875329, now seen corresponding path program 1 times [2020-10-12 20:49:40,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:49:40,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392983038] [2020-10-12 20:49:40,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:49:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:40,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:40,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:40,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:42,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:43,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:43,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-12 20:49:43,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 20:49:43,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2901 [2020-10-12 20:49:43,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:43,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 20:49:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 20:49:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 20:49:43,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:49:43,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:49:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:43,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:43,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:43,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:49:43,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:49:43,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 20:49:43,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:43,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:49:43,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:49:43,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:49:43,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:43,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 20:49:43,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392983038] [2020-10-12 20:49:43,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 20:49:43,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 20:49:43,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560971099] [2020-10-12 20:49:43,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 20:49:43,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:49:43,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 20:49:43,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-12 20:49:43,532 INFO L87 Difference]: Start difference. First operand 123 states and 180 transitions. Second operand 9 states. [2020-10-12 20:49:45,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:49:45,367 INFO L93 Difference]: Finished difference Result 359 states and 533 transitions. [2020-10-12 20:49:45,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 20:49:45,368 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-10-12 20:49:45,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:49:45,371 INFO L225 Difference]: With dead ends: 359 [2020-10-12 20:49:45,372 INFO L226 Difference]: Without dead ends: 252 [2020-10-12 20:49:45,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-12 20:49:45,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-12 20:49:45,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 231. [2020-10-12 20:49:45,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-10-12 20:49:45,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 349 transitions. [2020-10-12 20:49:45,395 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 349 transitions. Word has length 45 [2020-10-12 20:49:45,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:49:45,396 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 349 transitions. [2020-10-12 20:49:45,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 20:49:45,396 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 349 transitions. [2020-10-12 20:49:45,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-12 20:49:45,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:49:45,399 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:49:45,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 20:49:45,401 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:49:45,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:49:45,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1841858773, now seen corresponding path program 1 times [2020-10-12 20:49:45,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:49:45,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336815704] [2020-10-12 20:49:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:49:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:45,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:45,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:45,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:46,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:46,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 20:49:46,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:49:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1087 [2020-10-12 20:49:46,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:49:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-12 20:49:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 20:49:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:49:46,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:49:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:46,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:46,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:46,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:49:46,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:49:46,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 20:49:46,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:49:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:49:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:49:46,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 20:49:46,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336815704] [2020-10-12 20:49:46,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:49:46,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:49:46,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763214614] [2020-10-12 20:49:46,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:49:46,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:49:46,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:49:46,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:49:46,662 INFO L87 Difference]: Start difference. First operand 231 states and 349 transitions. Second operand 5 states. [2020-10-12 20:49:47,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:49:47,453 INFO L93 Difference]: Finished difference Result 626 states and 957 transitions. [2020-10-12 20:49:47,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:49:47,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-10-12 20:49:47,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:49:47,458 INFO L225 Difference]: With dead ends: 626 [2020-10-12 20:49:47,458 INFO L226 Difference]: Without dead ends: 411 [2020-10-12 20:49:47,460 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 [2020-10-12 20:49:47,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-10-12 20:49:47,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 279. [2020-10-12 20:49:47,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-10-12 20:49:47,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 433 transitions. [2020-10-12 20:49:47,480 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 433 transitions. Word has length 60 [2020-10-12 20:49:47,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:49:47,481 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 433 transitions. [2020-10-12 20:49:47,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:49:47,481 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 433 transitions. [2020-10-12 20:49:47,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 20:49:47,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:49:47,484 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:49:47,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 20:49:47,484 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:49:47,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:49:47,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1267464982, now seen corresponding path program 1 times [2020-10-12 20:49:47,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:49:47,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657092246] [2020-10-12 20:49:47,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:49:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:47,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:47,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:47,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:48,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:48,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 20:49:48,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:49:48,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-10-12 20:49:48,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:48,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:49:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-12 20:49:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 20:49:48,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:48,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:49:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:48,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:48,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:48,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:49:48,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:49:48,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 20:49:48,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:49:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:49:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:49:48,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:48,487 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 20:49:48,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657092246] [2020-10-12 20:49:48,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:49:48,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:49:48,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523692658] [2020-10-12 20:49:48,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:49:48,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:49:48,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:49:48,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:49:48,490 INFO L87 Difference]: Start difference. First operand 279 states and 433 transitions. Second operand 5 states. [2020-10-12 20:49:49,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:49:49,186 INFO L93 Difference]: Finished difference Result 564 states and 868 transitions. [2020-10-12 20:49:49,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:49:49,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-10-12 20:49:49,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:49:49,191 INFO L225 Difference]: With dead ends: 564 [2020-10-12 20:49:49,191 INFO L226 Difference]: Without dead ends: 301 [2020-10-12 20:49:49,193 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 [2020-10-12 20:49:49,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-12 20:49:49,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 267. [2020-10-12 20:49:49,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-10-12 20:49:49,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 409 transitions. [2020-10-12 20:49:49,218 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 409 transitions. Word has length 61 [2020-10-12 20:49:49,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:49:49,219 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 409 transitions. [2020-10-12 20:49:49,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:49:49,220 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 409 transitions. [2020-10-12 20:49:49,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 20:49:49,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:49:49,229 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:49:49,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 20:49:49,230 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:49:49,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:49:49,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1929264221, now seen corresponding path program 1 times [2020-10-12 20:49:49,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:49:49,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20872307] [2020-10-12 20:49:49,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:49:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:49,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:49,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:50,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:50,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-12 20:49:50,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 20:49:50,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 762 [2020-10-12 20:49:50,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:50,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:49:50,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:49:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 20:49:50,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:50,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:49:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:50,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:50,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:50,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:49:50,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:49:50,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 20:49:50,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:49:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:49:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:49:50,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:49:50,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20872307] [2020-10-12 20:49:50,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:49:50,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:49:50,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951196854] [2020-10-12 20:49:50,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:49:50,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:49:50,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:49:50,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:49:50,160 INFO L87 Difference]: Start difference. First operand 267 states and 409 transitions. Second operand 5 states. [2020-10-12 20:49:51,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:49:51,067 INFO L93 Difference]: Finished difference Result 700 states and 1079 transitions. [2020-10-12 20:49:51,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:49:51,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-10-12 20:49:51,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:49:51,071 INFO L225 Difference]: With dead ends: 700 [2020-10-12 20:49:51,071 INFO L226 Difference]: Without dead ends: 449 [2020-10-12 20:49:51,072 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 [2020-10-12 20:49:51,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-10-12 20:49:51,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 317. [2020-10-12 20:49:51,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-10-12 20:49:51,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 495 transitions. [2020-10-12 20:49:51,087 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 495 transitions. Word has length 78 [2020-10-12 20:49:51,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:49:51,089 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 495 transitions. [2020-10-12 20:49:51,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:49:51,089 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 495 transitions. [2020-10-12 20:49:51,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 20:49:51,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:49:51,091 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:49:51,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 20:49:51,091 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:49:51,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:49:51,092 INFO L82 PathProgramCache]: Analyzing trace with hash -2063277727, now seen corresponding path program 1 times [2020-10-12 20:49:51,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:49:51,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531951892] [2020-10-12 20:49:51,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:49:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:51,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:51,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:51,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:52,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:52,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-12 20:49:52,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:49:52,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1553 [2020-10-12 20:49:52,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:49:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:49:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 20:49:52,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:52,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:49:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:52,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:52,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:52,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:49:52,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:49:52,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 20:49:52,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:52,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:49:52,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:49:52,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:49:52,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:49:52,796 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:49:52,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531951892] [2020-10-12 20:49:52,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:49:52,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:49:52,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901263905] [2020-10-12 20:49:52,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:49:52,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:49:52,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:49:52,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:49:52,801 INFO L87 Difference]: Start difference. First operand 317 states and 495 transitions. Second operand 5 states. [2020-10-12 20:49:53,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:49:53,821 INFO L93 Difference]: Finished difference Result 798 states and 1249 transitions. [2020-10-12 20:49:53,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:49:53,822 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-10-12 20:49:53,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:49:53,827 INFO L225 Difference]: With dead ends: 798 [2020-10-12 20:49:53,827 INFO L226 Difference]: Without dead ends: 497 [2020-10-12 20:49:53,828 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 [2020-10-12 20:49:53,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-10-12 20:49:53,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 315. [2020-10-12 20:49:53,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-10-12 20:49:53,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 493 transitions. [2020-10-12 20:49:53,842 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 493 transitions. Word has length 78 [2020-10-12 20:49:53,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:49:53,843 INFO L479 AbstractCegarLoop]: Abstraction has 315 states and 493 transitions. [2020-10-12 20:49:53,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:49:53,843 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 493 transitions. [2020-10-12 20:49:53,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 20:49:53,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:49:53,844 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:49:53,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 20:49:53,844 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:49:53,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:49:53,845 INFO L82 PathProgramCache]: Analyzing trace with hash 317933426, now seen corresponding path program 1 times [2020-10-12 20:49:53,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:49:53,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718259160] [2020-10-12 20:49:53,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:49:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:53,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:54,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:54,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:54,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 20:49:54,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 20:49:54,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 731 [2020-10-12 20:49:54,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:49:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:49:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 20:49:54,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:54,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:49:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:54,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:54,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:54,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:49:54,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:49:54,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 20:49:54,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:49:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:49:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:49:54,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:54,694 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:49:54,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718259160] [2020-10-12 20:49:54,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:49:54,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:49:54,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737311097] [2020-10-12 20:49:54,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:49:54,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:49:54,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:49:54,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:49:54,697 INFO L87 Difference]: Start difference. First operand 315 states and 493 transitions. Second operand 5 states. [2020-10-12 20:49:55,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:49:55,571 INFO L93 Difference]: Finished difference Result 790 states and 1237 transitions. [2020-10-12 20:49:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:49:55,574 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 79 [2020-10-12 20:49:55,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:49:55,578 INFO L225 Difference]: With dead ends: 790 [2020-10-12 20:49:55,578 INFO L226 Difference]: Without dead ends: 491 [2020-10-12 20:49:55,579 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 [2020-10-12 20:49:55,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-10-12 20:49:55,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 367. [2020-10-12 20:49:55,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-10-12 20:49:55,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 581 transitions. [2020-10-12 20:49:55,592 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 581 transitions. Word has length 79 [2020-10-12 20:49:55,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:49:55,593 INFO L479 AbstractCegarLoop]: Abstraction has 367 states and 581 transitions. [2020-10-12 20:49:55,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:49:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 581 transitions. [2020-10-12 20:49:55,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 20:49:55,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:49:55,597 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:49:55,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 20:49:55,598 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:49:55,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:49:55,598 INFO L82 PathProgramCache]: Analyzing trace with hash 458482036, now seen corresponding path program 1 times [2020-10-12 20:49:55,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:49:55,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971176973] [2020-10-12 20:49:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:49:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:55,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:55,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:55,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:56,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:56,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 20:49:56,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:49:56,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1295 [2020-10-12 20:49:56,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:49:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:49:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 20:49:56,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:56,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:49:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:56,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:56,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:56,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:49:56,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:49:56,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:49:56,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:49:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:49:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:49:56,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:49:57,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971176973] [2020-10-12 20:49:57,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:49:57,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:49:57,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938475115] [2020-10-12 20:49:57,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:49:57,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:49:57,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:49:57,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:49:57,004 INFO L87 Difference]: Start difference. First operand 367 states and 581 transitions. Second operand 5 states. [2020-10-12 20:49:57,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:49:57,784 INFO L93 Difference]: Finished difference Result 754 states and 1186 transitions. [2020-10-12 20:49:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:49:57,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 79 [2020-10-12 20:49:57,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:49:57,790 INFO L225 Difference]: With dead ends: 754 [2020-10-12 20:49:57,790 INFO L226 Difference]: Without dead ends: 403 [2020-10-12 20:49:57,791 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 [2020-10-12 20:49:57,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-10-12 20:49:57,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 359. [2020-10-12 20:49:57,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-10-12 20:49:57,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 565 transitions. [2020-10-12 20:49:57,805 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 565 transitions. Word has length 79 [2020-10-12 20:49:57,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:49:57,806 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 565 transitions. [2020-10-12 20:49:57,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:49:57,806 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 565 transitions. [2020-10-12 20:49:57,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 20:49:57,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:49:57,807 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:49:57,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 20:49:57,807 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:49:57,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:49:57,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1261744606, now seen corresponding path program 1 times [2020-10-12 20:49:57,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:49:57,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458450973] [2020-10-12 20:49:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:49:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:57,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:57,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:58,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:58,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-12 20:49:58,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 20:49:58,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 678 [2020-10-12 20:49:58,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:49:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:49:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 20:49:58,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:49:58,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:49:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:58,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:58,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:49:58,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:49:58,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:49:58,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 20:49:58,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:49:58,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:49:58,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:49:58,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:49:58,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:49:58,626 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:49:58,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458450973] [2020-10-12 20:49:58,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:49:58,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:49:58,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236446982] [2020-10-12 20:49:58,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:49:58,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:49:58,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:49:58,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:49:58,631 INFO L87 Difference]: Start difference. First operand 359 states and 565 transitions. Second operand 5 states. [2020-10-12 20:49:59,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:49:59,516 INFO L93 Difference]: Finished difference Result 826 states and 1291 transitions. [2020-10-12 20:49:59,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:49:59,517 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-10-12 20:49:59,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:49:59,520 INFO L225 Difference]: With dead ends: 826 [2020-10-12 20:49:59,520 INFO L226 Difference]: Without dead ends: 483 [2020-10-12 20:49:59,521 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 [2020-10-12 20:49:59,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-12 20:49:59,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 361. [2020-10-12 20:49:59,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-12 20:49:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 567 transitions. [2020-10-12 20:49:59,536 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 567 transitions. Word has length 80 [2020-10-12 20:49:59,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:49:59,537 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 567 transitions. [2020-10-12 20:49:59,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:49:59,537 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 567 transitions. [2020-10-12 20:49:59,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 20:49:59,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:49:59,538 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:49:59,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 20:49:59,538 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:49:59,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:49:59,539 INFO L82 PathProgramCache]: Analyzing trace with hash 454900045, now seen corresponding path program 1 times [2020-10-12 20:49:59,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:49:59,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313583819] [2020-10-12 20:49:59,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:49:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:49:59,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:49:59,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:00,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:00,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 20:50:00,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 20:50:00,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-10-12 20:50:00,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:00,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:00,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 20:50:00,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:00,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:00,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:00,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:00,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:00,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:00,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 20:50:00,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:00,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:00,298 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:00,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313583819] [2020-10-12 20:50:00,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:00,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:00,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670634801] [2020-10-12 20:50:00,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:00,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:00,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:00,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:00,300 INFO L87 Difference]: Start difference. First operand 361 states and 567 transitions. Second operand 5 states. [2020-10-12 20:50:01,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:01,483 INFO L93 Difference]: Finished difference Result 818 states and 1278 transitions. [2020-10-12 20:50:01,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:01,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2020-10-12 20:50:01,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:01,488 INFO L225 Difference]: With dead ends: 818 [2020-10-12 20:50:01,488 INFO L226 Difference]: Without dead ends: 473 [2020-10-12 20:50:01,490 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 [2020-10-12 20:50:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-10-12 20:50:01,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 363. [2020-10-12 20:50:01,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-10-12 20:50:01,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 569 transitions. [2020-10-12 20:50:01,514 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 569 transitions. Word has length 81 [2020-10-12 20:50:01,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:01,515 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 569 transitions. [2020-10-12 20:50:01,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:01,515 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 569 transitions. [2020-10-12 20:50:01,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-12 20:50:01,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:01,517 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 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, 1, 1] [2020-10-12 20:50:01,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 20:50:01,518 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:01,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:01,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1146918067, now seen corresponding path program 1 times [2020-10-12 20:50:01,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:01,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333658776] [2020-10-12 20:50:01,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:01,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:01,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:02,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:02,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:05,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:05,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-12 20:50:05,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 20:50:05,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3589 [2020-10-12 20:50:05,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 20:50:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:05,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:05,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:05,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:05,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:05,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:05,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 20:50:05,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:05,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:05,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:05,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:05,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:05,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333658776] [2020-10-12 20:50:05,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:05,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:05,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118258150] [2020-10-12 20:50:05,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:05,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:05,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:05,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:05,238 INFO L87 Difference]: Start difference. First operand 363 states and 569 transitions. Second operand 5 states. [2020-10-12 20:50:06,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:06,116 INFO L93 Difference]: Finished difference Result 820 states and 1278 transitions. [2020-10-12 20:50:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:06,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-12 20:50:06,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:06,120 INFO L225 Difference]: With dead ends: 820 [2020-10-12 20:50:06,121 INFO L226 Difference]: Without dead ends: 473 [2020-10-12 20:50:06,122 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 [2020-10-12 20:50:06,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-10-12 20:50:06,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 363. [2020-10-12 20:50:06,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-10-12 20:50:06,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 567 transitions. [2020-10-12 20:50:06,141 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 567 transitions. Word has length 96 [2020-10-12 20:50:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:06,142 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 567 transitions. [2020-10-12 20:50:06,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:06,142 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 567 transitions. [2020-10-12 20:50:06,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-12 20:50:06,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:06,143 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 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, 1, 1] [2020-10-12 20:50:06,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 20:50:06,144 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:06,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:06,144 INFO L82 PathProgramCache]: Analyzing trace with hash -898771573, now seen corresponding path program 1 times [2020-10-12 20:50:06,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:06,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422628400] [2020-10-12 20:50:06,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:06,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:06,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:06,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:07,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:07,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-12 20:50:07,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:07,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1262 [2020-10-12 20:50:07,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:50:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 20:50:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 20:50:07,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:07,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:07,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:07,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:07,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:07,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:07,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 20:50:07,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:07,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:07,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:07,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:07,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:50:07,558 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-12 20:50:07,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422628400] [2020-10-12 20:50:07,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:07,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:07,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872380516] [2020-10-12 20:50:07,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:07,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:07,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:07,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:07,560 INFO L87 Difference]: Start difference. First operand 363 states and 567 transitions. Second operand 5 states. [2020-10-12 20:50:08,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:08,501 INFO L93 Difference]: Finished difference Result 890 states and 1393 transitions. [2020-10-12 20:50:08,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:08,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-12 20:50:08,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:08,511 INFO L225 Difference]: With dead ends: 890 [2020-10-12 20:50:08,511 INFO L226 Difference]: Without dead ends: 543 [2020-10-12 20:50:08,512 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 [2020-10-12 20:50:08,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-10-12 20:50:08,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 411. [2020-10-12 20:50:08,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-10-12 20:50:08,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 651 transitions. [2020-10-12 20:50:08,542 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 651 transitions. Word has length 96 [2020-10-12 20:50:08,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:08,543 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 651 transitions. [2020-10-12 20:50:08,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 651 transitions. [2020-10-12 20:50:08,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-12 20:50:08,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:08,546 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 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, 1, 1, 1] [2020-10-12 20:50:08,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 20:50:08,546 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:08,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:08,546 INFO L82 PathProgramCache]: Analyzing trace with hash -2096532854, now seen corresponding path program 1 times [2020-10-12 20:50:08,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:08,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600282717] [2020-10-12 20:50:08,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:08,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:08,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:08,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:10,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:10,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 20:50:10,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:10,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1434 [2020-10-12 20:50:10,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:10,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:50:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 20:50:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 20:50:10,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:10,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:10,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:10,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:10,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:10,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:10,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 20:50:10,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:10,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:10,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:10,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:10,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:50:10,123 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-12 20:50:10,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600282717] [2020-10-12 20:50:10,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:10,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:10,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93498772] [2020-10-12 20:50:10,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:10,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:10,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:10,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:10,126 INFO L87 Difference]: Start difference. First operand 411 states and 651 transitions. Second operand 5 states. [2020-10-12 20:50:11,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:11,338 INFO L93 Difference]: Finished difference Result 932 states and 1467 transitions. [2020-10-12 20:50:11,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:11,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2020-10-12 20:50:11,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:11,343 INFO L225 Difference]: With dead ends: 932 [2020-10-12 20:50:11,344 INFO L226 Difference]: Without dead ends: 537 [2020-10-12 20:50:11,345 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 [2020-10-12 20:50:11,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-12 20:50:11,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 413. [2020-10-12 20:50:11,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-10-12 20:50:11,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 653 transitions. [2020-10-12 20:50:11,371 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 653 transitions. Word has length 97 [2020-10-12 20:50:11,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:11,371 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 653 transitions. [2020-10-12 20:50:11,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:11,372 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 653 transitions. [2020-10-12 20:50:11,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-12 20:50:11,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:11,374 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 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, 1, 1, 1, 1] [2020-10-12 20:50:11,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 20:50:11,375 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:11,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:11,375 INFO L82 PathProgramCache]: Analyzing trace with hash -572266042, now seen corresponding path program 1 times [2020-10-12 20:50:11,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:11,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033253225] [2020-10-12 20:50:11,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:11,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:11,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:11,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:12,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:12,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 20:50:12,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:12,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-10-12 20:50:12,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:50:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 20:50:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 20:50:12,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:12,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:12,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:12,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:12,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:12,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:12,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 20:50:12,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:12,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:12,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:12,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:12,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:50:12,524 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-12 20:50:12,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033253225] [2020-10-12 20:50:12,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:12,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:12,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811617628] [2020-10-12 20:50:12,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:12,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:12,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:12,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:12,527 INFO L87 Difference]: Start difference. First operand 413 states and 653 transitions. Second operand 5 states. [2020-10-12 20:50:13,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:13,511 INFO L93 Difference]: Finished difference Result 854 states and 1344 transitions. [2020-10-12 20:50:13,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:13,512 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-10-12 20:50:13,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:13,515 INFO L225 Difference]: With dead ends: 854 [2020-10-12 20:50:13,515 INFO L226 Difference]: Without dead ends: 457 [2020-10-12 20:50:13,516 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 [2020-10-12 20:50:13,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-10-12 20:50:13,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 407. [2020-10-12 20:50:13,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-10-12 20:50:13,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 643 transitions. [2020-10-12 20:50:13,530 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 643 transitions. Word has length 98 [2020-10-12 20:50:13,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:13,531 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 643 transitions. [2020-10-12 20:50:13,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:13,531 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 643 transitions. [2020-10-12 20:50:13,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-12 20:50:13,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:13,532 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:13,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 20:50:13,533 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:13,533 INFO L82 PathProgramCache]: Analyzing trace with hash 87946936, now seen corresponding path program 1 times [2020-10-12 20:50:13,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:13,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229109092] [2020-10-12 20:50:13,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:13,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:13,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:14,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:14,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:14,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 20:50:14,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:14,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 733 [2020-10-12 20:50:14,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 20:50:14,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:14,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:14,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:14,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:14,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:14,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:14,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:50:14,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:14,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:14,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:14,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:14,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:14,416 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:14,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229109092] [2020-10-12 20:50:14,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:14,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:14,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493963216] [2020-10-12 20:50:14,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:14,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:14,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:14,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:14,418 INFO L87 Difference]: Start difference. First operand 407 states and 643 transitions. Second operand 5 states. [2020-10-12 20:50:15,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:15,287 INFO L93 Difference]: Finished difference Result 908 states and 1426 transitions. [2020-10-12 20:50:15,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:15,289 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2020-10-12 20:50:15,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:15,294 INFO L225 Difference]: With dead ends: 908 [2020-10-12 20:50:15,294 INFO L226 Difference]: Without dead ends: 517 [2020-10-12 20:50:15,295 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 [2020-10-12 20:50:15,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2020-10-12 20:50:15,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 407. [2020-10-12 20:50:15,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-10-12 20:50:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 641 transitions. [2020-10-12 20:50:15,316 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 641 transitions. Word has length 99 [2020-10-12 20:50:15,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:15,316 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 641 transitions. [2020-10-12 20:50:15,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:15,316 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 641 transitions. [2020-10-12 20:50:15,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-12 20:50:15,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:15,318 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:15,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 20:50:15,318 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:15,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:15,318 INFO L82 PathProgramCache]: Analyzing trace with hash -430040663, now seen corresponding path program 1 times [2020-10-12 20:50:15,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:15,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150435631] [2020-10-12 20:50:15,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:15,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:15,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:15,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:16,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:16,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 20:50:16,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:16,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 935 [2020-10-12 20:50:16,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:16,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:16,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:16,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 20:50:16,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:16,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:16,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:16,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:16,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:16,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:16,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:50:16,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:16,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:16,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:16,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150435631] [2020-10-12 20:50:16,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:16,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:16,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813849087] [2020-10-12 20:50:16,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:16,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:16,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:16,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:16,392 INFO L87 Difference]: Start difference. First operand 407 states and 641 transitions. Second operand 5 states. [2020-10-12 20:50:17,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:17,246 INFO L93 Difference]: Finished difference Result 902 states and 1414 transitions. [2020-10-12 20:50:17,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:17,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-10-12 20:50:17,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:17,251 INFO L225 Difference]: With dead ends: 902 [2020-10-12 20:50:17,251 INFO L226 Difference]: Without dead ends: 511 [2020-10-12 20:50:17,252 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 [2020-10-12 20:50:17,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-10-12 20:50:17,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 407. [2020-10-12 20:50:17,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-10-12 20:50:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 639 transitions. [2020-10-12 20:50:17,267 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 639 transitions. Word has length 100 [2020-10-12 20:50:17,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:17,267 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 639 transitions. [2020-10-12 20:50:17,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:17,268 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 639 transitions. [2020-10-12 20:50:17,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 20:50:17,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:17,269 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2020-10-12 20:50:17,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 20:50:17,270 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:17,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:17,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1885936060, now seen corresponding path program 1 times [2020-10-12 20:50:17,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:17,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305506041] [2020-10-12 20:50:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:17,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:17,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:17,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:18,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:18,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 20:50:18,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:18,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1359 [2020-10-12 20:50:18,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:18,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:18,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:18,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 20:50:18,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:18,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:18,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:18,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:18,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:18,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:18,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:50:18,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:18,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:18,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:18,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:18,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:18,732 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:18,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305506041] [2020-10-12 20:50:18,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:18,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:18,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102406623] [2020-10-12 20:50:18,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:18,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:18,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:18,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:18,734 INFO L87 Difference]: Start difference. First operand 407 states and 639 transitions. Second operand 5 states. [2020-10-12 20:50:19,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:19,520 INFO L93 Difference]: Finished difference Result 902 states and 1410 transitions. [2020-10-12 20:50:19,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:19,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-10-12 20:50:19,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:19,523 INFO L225 Difference]: With dead ends: 902 [2020-10-12 20:50:19,523 INFO L226 Difference]: Without dead ends: 511 [2020-10-12 20:50:19,525 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 [2020-10-12 20:50:19,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-10-12 20:50:19,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 409. [2020-10-12 20:50:19,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-10-12 20:50:19,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 641 transitions. [2020-10-12 20:50:19,541 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 641 transitions. Word has length 103 [2020-10-12 20:50:19,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:19,541 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 641 transitions. [2020-10-12 20:50:19,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:19,541 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 641 transitions. [2020-10-12 20:50:19,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 20:50:19,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:19,543 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2020-10-12 20:50:19,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 20:50:19,543 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:19,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:19,544 INFO L82 PathProgramCache]: Analyzing trace with hash 266572437, now seen corresponding path program 1 times [2020-10-12 20:50:19,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:19,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282906551] [2020-10-12 20:50:19,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:19,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:19,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:20,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:20,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:20,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 20:50:20,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:20,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1276 [2020-10-12 20:50:20,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 20:50:20,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:20,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:20,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:20,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:20,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:20,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:20,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:50:20,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:20,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:20,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:20,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:20,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:20,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282906551] [2020-10-12 20:50:20,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:20,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:20,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853055198] [2020-10-12 20:50:20,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:20,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:20,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:20,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:20,926 INFO L87 Difference]: Start difference. First operand 409 states and 641 transitions. Second operand 5 states. [2020-10-12 20:50:21,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:21,719 INFO L93 Difference]: Finished difference Result 904 states and 1410 transitions. [2020-10-12 20:50:21,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:21,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-12 20:50:21,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:21,725 INFO L225 Difference]: With dead ends: 904 [2020-10-12 20:50:21,725 INFO L226 Difference]: Without dead ends: 511 [2020-10-12 20:50:21,726 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 [2020-10-12 20:50:21,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-10-12 20:50:21,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 411. [2020-10-12 20:50:21,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-10-12 20:50:21,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 643 transitions. [2020-10-12 20:50:21,755 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 643 transitions. Word has length 104 [2020-10-12 20:50:21,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:21,755 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 643 transitions. [2020-10-12 20:50:21,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:21,756 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 643 transitions. [2020-10-12 20:50:21,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 20:50:21,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:21,757 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:21,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 20:50:21,757 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:21,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:21,758 INFO L82 PathProgramCache]: Analyzing trace with hash 773714281, now seen corresponding path program 1 times [2020-10-12 20:50:21,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:21,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637069902] [2020-10-12 20:50:21,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:21,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:21,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:22,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:23,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:23,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 20:50:23,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1277 [2020-10-12 20:50:23,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 20:50:23,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:23,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:23,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:23,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:23,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:23,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:23,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 20:50:23,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:23,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:23,130 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:23,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637069902] [2020-10-12 20:50:23,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:23,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:23,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389741795] [2020-10-12 20:50:23,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:23,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:23,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:23,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:23,132 INFO L87 Difference]: Start difference. First operand 411 states and 643 transitions. Second operand 5 states. [2020-10-12 20:50:23,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:23,908 INFO L93 Difference]: Finished difference Result 906 states and 1410 transitions. [2020-10-12 20:50:23,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:23,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-10-12 20:50:23,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:23,912 INFO L225 Difference]: With dead ends: 906 [2020-10-12 20:50:23,912 INFO L226 Difference]: Without dead ends: 511 [2020-10-12 20:50:23,913 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 [2020-10-12 20:50:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-10-12 20:50:23,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 413. [2020-10-12 20:50:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-10-12 20:50:23,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 645 transitions. [2020-10-12 20:50:23,929 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 645 transitions. Word has length 105 [2020-10-12 20:50:23,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:23,929 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 645 transitions. [2020-10-12 20:50:23,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 645 transitions. [2020-10-12 20:50:23,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-12 20:50:23,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:23,931 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:23,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 20:50:23,931 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:23,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:23,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1814097434, now seen corresponding path program 1 times [2020-10-12 20:50:23,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:23,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758813506] [2020-10-12 20:50:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:23,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:24,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:24,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:25,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:25,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 20:50:25,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:25,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1314 [2020-10-12 20:50:25,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 20:50:25,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:25,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:25,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:25,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:25,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:25,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:25,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 20:50:25,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:25,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:25,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758813506] [2020-10-12 20:50:25,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:25,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:25,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87470986] [2020-10-12 20:50:25,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:25,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:25,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:25,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:25,352 INFO L87 Difference]: Start difference. First operand 413 states and 645 transitions. Second operand 5 states. [2020-10-12 20:50:26,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:26,127 INFO L93 Difference]: Finished difference Result 904 states and 1406 transitions. [2020-10-12 20:50:26,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:26,127 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-10-12 20:50:26,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:26,130 INFO L225 Difference]: With dead ends: 904 [2020-10-12 20:50:26,130 INFO L226 Difference]: Without dead ends: 507 [2020-10-12 20:50:26,131 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 [2020-10-12 20:50:26,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-12 20:50:26,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 415. [2020-10-12 20:50:26,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-12 20:50:26,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 647 transitions. [2020-10-12 20:50:26,146 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 647 transitions. Word has length 106 [2020-10-12 20:50:26,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:26,146 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 647 transitions. [2020-10-12 20:50:26,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:26,146 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 647 transitions. [2020-10-12 20:50:26,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 20:50:26,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:26,148 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:26,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 20:50:26,148 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:26,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1233272466, now seen corresponding path program 1 times [2020-10-12 20:50:26,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:26,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852641827] [2020-10-12 20:50:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:26,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:26,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:26,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:27,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:27,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 20:50:27,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:27,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1799 [2020-10-12 20:50:27,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-12 20:50:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 20:50:27,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:28,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:28,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:28,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:28,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:28,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:28,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:50:28,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:28,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:28,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:28,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:28,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-12 20:50:28,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852641827] [2020-10-12 20:50:28,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:28,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:28,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426236234] [2020-10-12 20:50:28,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:28,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:28,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:28,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:28,047 INFO L87 Difference]: Start difference. First operand 415 states and 647 transitions. Second operand 5 states. [2020-10-12 20:50:29,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:29,044 INFO L93 Difference]: Finished difference Result 995 states and 1554 transitions. [2020-10-12 20:50:29,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:29,045 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-12 20:50:29,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:29,048 INFO L225 Difference]: With dead ends: 995 [2020-10-12 20:50:29,048 INFO L226 Difference]: Without dead ends: 596 [2020-10-12 20:50:29,050 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 [2020-10-12 20:50:29,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-10-12 20:50:29,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 464. [2020-10-12 20:50:29,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-12 20:50:29,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 732 transitions. [2020-10-12 20:50:29,066 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 732 transitions. Word has length 109 [2020-10-12 20:50:29,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:29,066 INFO L479 AbstractCegarLoop]: Abstraction has 464 states and 732 transitions. [2020-10-12 20:50:29,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:29,066 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 732 transitions. [2020-10-12 20:50:29,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 20:50:29,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:29,075 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:29,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 20:50:29,075 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:29,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:29,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1099258960, now seen corresponding path program 1 times [2020-10-12 20:50:29,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:29,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409943045] [2020-10-12 20:50:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:29,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:29,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:29,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:30,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:30,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 20:50:30,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:30,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1788 [2020-10-12 20:50:30,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-12 20:50:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 20:50:30,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:30,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:30,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:30,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:30,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:30,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 20:50:30,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:30,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:30,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-12 20:50:31,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409943045] [2020-10-12 20:50:31,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:31,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:31,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98953911] [2020-10-12 20:50:31,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:31,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:31,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:31,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:31,008 INFO L87 Difference]: Start difference. First operand 464 states and 732 transitions. Second operand 5 states. [2020-10-12 20:50:31,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:31,954 INFO L93 Difference]: Finished difference Result 1094 states and 1725 transitions. [2020-10-12 20:50:31,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:31,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-12 20:50:31,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:31,959 INFO L225 Difference]: With dead ends: 1094 [2020-10-12 20:50:31,959 INFO L226 Difference]: Without dead ends: 646 [2020-10-12 20:50:31,960 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 [2020-10-12 20:50:31,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2020-10-12 20:50:31,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 465. [2020-10-12 20:50:31,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-10-12 20:50:31,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 733 transitions. [2020-10-12 20:50:31,976 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 733 transitions. Word has length 109 [2020-10-12 20:50:31,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:31,976 INFO L479 AbstractCegarLoop]: Abstraction has 465 states and 733 transitions. [2020-10-12 20:50:31,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:31,977 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 733 transitions. [2020-10-12 20:50:31,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-12 20:50:31,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:31,979 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:31,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 20:50:31,979 INFO L427 AbstractCegarLoop]: === Iteration 23 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:31,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:31,979 INFO L82 PathProgramCache]: Analyzing trace with hash -427677085, now seen corresponding path program 1 times [2020-10-12 20:50:31,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:31,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527269262] [2020-10-12 20:50:31,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:32,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:32,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:32,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:33,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:33,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 20:50:33,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:33,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1785 [2020-10-12 20:50:33,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:33,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 20:50:33,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 20:50:33,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:33,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:33,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:33,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:33,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:33,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:50:33,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:33,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:33,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:33,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:33,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:33,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527269262] [2020-10-12 20:50:33,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:33,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:33,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525410978] [2020-10-12 20:50:33,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:33,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:33,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:33,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:33,909 INFO L87 Difference]: Start difference. First operand 465 states and 733 transitions. Second operand 5 states. [2020-10-12 20:50:34,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:34,766 INFO L93 Difference]: Finished difference Result 1006 states and 1578 transitions. [2020-10-12 20:50:34,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:34,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-12 20:50:34,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:34,771 INFO L225 Difference]: With dead ends: 1006 [2020-10-12 20:50:34,771 INFO L226 Difference]: Without dead ends: 557 [2020-10-12 20:50:34,773 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 [2020-10-12 20:50:34,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2020-10-12 20:50:34,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 467. [2020-10-12 20:50:34,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-10-12 20:50:34,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 735 transitions. [2020-10-12 20:50:34,786 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 735 transitions. Word has length 110 [2020-10-12 20:50:34,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:34,787 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 735 transitions. [2020-10-12 20:50:34,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:34,787 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 735 transitions. [2020-10-12 20:50:34,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-12 20:50:34,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:34,788 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:34,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 20:50:34,789 INFO L427 AbstractCegarLoop]: === Iteration 24 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:34,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:34,789 INFO L82 PathProgramCache]: Analyzing trace with hash 629271234, now seen corresponding path program 1 times [2020-10-12 20:50:34,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:34,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126227012] [2020-10-12 20:50:34,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:34,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:34,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:35,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:36,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:36,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 20:50:36,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:36,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1423 [2020-10-12 20:50:36,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:36,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:36,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:36,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 20:50:36,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:36,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:36,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:36,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:36,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:36,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:36,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:50:36,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:36,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:36,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:36,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:36,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:36,312 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:36,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126227012] [2020-10-12 20:50:36,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:36,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:36,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680365090] [2020-10-12 20:50:36,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:36,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:36,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:36,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:36,314 INFO L87 Difference]: Start difference. First operand 467 states and 735 transitions. Second operand 5 states. [2020-10-12 20:50:37,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:37,165 INFO L93 Difference]: Finished difference Result 782 states and 1216 transitions. [2020-10-12 20:50:37,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:37,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-12 20:50:37,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:37,169 INFO L225 Difference]: With dead ends: 782 [2020-10-12 20:50:37,169 INFO L226 Difference]: Without dead ends: 557 [2020-10-12 20:50:37,170 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 [2020-10-12 20:50:37,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2020-10-12 20:50:37,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 471. [2020-10-12 20:50:37,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-10-12 20:50:37,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 741 transitions. [2020-10-12 20:50:37,185 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 741 transitions. Word has length 110 [2020-10-12 20:50:37,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:37,185 INFO L479 AbstractCegarLoop]: Abstraction has 471 states and 741 transitions. [2020-10-12 20:50:37,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:37,186 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 741 transitions. [2020-10-12 20:50:37,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-12 20:50:37,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:37,187 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:37,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 20:50:37,187 INFO L427 AbstractCegarLoop]: === Iteration 25 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:37,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:37,188 INFO L82 PathProgramCache]: Analyzing trace with hash -810872910, now seen corresponding path program 1 times [2020-10-12 20:50:37,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:37,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194888446] [2020-10-12 20:50:37,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:37,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:37,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:37,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:38,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:38,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 20:50:38,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:38,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1657 [2020-10-12 20:50:38,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:38,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:38,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:38,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 20:50:38,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:38,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:38,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:38,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:38,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:38,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:50:38,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:38,955 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:38,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194888446] [2020-10-12 20:50:38,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:38,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:38,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618768078] [2020-10-12 20:50:38,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:38,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:38,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:38,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:38,957 INFO L87 Difference]: Start difference. First operand 471 states and 741 transitions. Second operand 5 states. [2020-10-12 20:50:39,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:39,755 INFO L93 Difference]: Finished difference Result 1006 states and 1574 transitions. [2020-10-12 20:50:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:39,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-12 20:50:39,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:39,759 INFO L225 Difference]: With dead ends: 1006 [2020-10-12 20:50:39,759 INFO L226 Difference]: Without dead ends: 551 [2020-10-12 20:50:39,760 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 [2020-10-12 20:50:39,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-10-12 20:50:39,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 471. [2020-10-12 20:50:39,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-10-12 20:50:39,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 739 transitions. [2020-10-12 20:50:39,774 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 739 transitions. Word has length 111 [2020-10-12 20:50:39,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:39,774 INFO L479 AbstractCegarLoop]: Abstraction has 471 states and 739 transitions. [2020-10-12 20:50:39,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:39,775 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 739 transitions. [2020-10-12 20:50:39,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-12 20:50:39,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:39,776 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:39,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 20:50:39,776 INFO L427 AbstractCegarLoop]: === Iteration 26 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:39,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:39,777 INFO L82 PathProgramCache]: Analyzing trace with hash 914277233, now seen corresponding path program 1 times [2020-10-12 20:50:39,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:39,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788775782] [2020-10-12 20:50:39,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:39,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:39,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:40,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:41,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:41,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 20:50:41,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:41,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1496 [2020-10-12 20:50:41,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 20:50:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 20:50:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 20:50:41,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:41,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:41,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:41,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:41,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:41,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:41,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:50:41,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:41,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:41,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:41,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:41,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 20:50:41,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788775782] [2020-10-12 20:50:41,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:50:41,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:50:41,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779479126] [2020-10-12 20:50:41,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:50:41,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:41,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:50:41,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:50:41,373 INFO L87 Difference]: Start difference. First operand 471 states and 739 transitions. Second operand 5 states. [2020-10-12 20:50:42,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:42,192 INFO L93 Difference]: Finished difference Result 776 states and 1204 transitions. [2020-10-12 20:50:42,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:50:42,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-12 20:50:42,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:42,197 INFO L225 Difference]: With dead ends: 776 [2020-10-12 20:50:42,198 INFO L226 Difference]: Without dead ends: 549 [2020-10-12 20:50:42,198 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 [2020-10-12 20:50:42,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-12 20:50:42,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 473. [2020-10-12 20:50:42,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-10-12 20:50:42,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 741 transitions. [2020-10-12 20:50:42,214 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 741 transitions. Word has length 111 [2020-10-12 20:50:42,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:42,215 INFO L479 AbstractCegarLoop]: Abstraction has 473 states and 741 transitions. [2020-10-12 20:50:42,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:50:42,215 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 741 transitions. [2020-10-12 20:50:42,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 20:50:42,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:42,216 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:42,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-12 20:50:42,217 INFO L427 AbstractCegarLoop]: === Iteration 27 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:42,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:42,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1093741121, now seen corresponding path program 1 times [2020-10-12 20:50:42,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:42,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74710719] [2020-10-12 20:50:42,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:42,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:42,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:43,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:47,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:47,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 20:50:47,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:50:47,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-12 20:50:47,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:47,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 20:50:47,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 20:50:47,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-12 20:50:47,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:47,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:47,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:47,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:47,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:47,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:47,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 20:50:47,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:47,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:47,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:47,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:47,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:47,944 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 20:50:47,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74710719] [2020-10-12 20:50:47,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 20:50:47,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 20:50:47,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302038866] [2020-10-12 20:50:47,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 20:50:47,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:47,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 20:50:47,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-12 20:50:47,946 INFO L87 Difference]: Start difference. First operand 473 states and 741 transitions. Second operand 11 states. [2020-10-12 20:50:50,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:50,478 INFO L93 Difference]: Finished difference Result 1020 states and 1591 transitions. [2020-10-12 20:50:50,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 20:50:50,479 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 115 [2020-10-12 20:50:50,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:50,484 INFO L225 Difference]: With dead ends: 1020 [2020-10-12 20:50:50,484 INFO L226 Difference]: Without dead ends: 792 [2020-10-12 20:50:50,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 7 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-12 20:50:50,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2020-10-12 20:50:50,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 692. [2020-10-12 20:50:50,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-12 20:50:50,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1087 transitions. [2020-10-12 20:50:50,506 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1087 transitions. Word has length 115 [2020-10-12 20:50:50,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:50,506 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1087 transitions. [2020-10-12 20:50:50,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 20:50:50,506 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1087 transitions. [2020-10-12 20:50:50,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 20:50:50,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:50,508 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:50,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-12 20:50:50,508 INFO L427 AbstractCegarLoop]: === Iteration 28 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:50,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:50,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1684762111, now seen corresponding path program 1 times [2020-10-12 20:50:50,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:50,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530148329] [2020-10-12 20:50:50,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:50,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:50,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:50,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:54,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:55,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:55,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 20:50:55,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 20:50:55,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-12 20:50:55,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:55,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 20:50:55,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 20:50:55,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 20:50:55,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:56,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:50:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:56,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:56,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:50:56,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:50:56,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:50:56,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:50:56,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:50:56,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:50:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:50:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:50:56,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:50:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 59 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 20:50:56,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530148329] [2020-10-12 20:50:56,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 20:50:56,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 20:50:56,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18512751] [2020-10-12 20:50:56,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 20:50:56,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:50:56,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 20:50:56,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-12 20:50:56,085 INFO L87 Difference]: Start difference. First operand 692 states and 1087 transitions. Second operand 11 states. [2020-10-12 20:50:58,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:50:58,501 INFO L93 Difference]: Finished difference Result 1539 states and 2424 transitions. [2020-10-12 20:50:58,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 20:50:58,502 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 115 [2020-10-12 20:50:58,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:50:58,507 INFO L225 Difference]: With dead ends: 1539 [2020-10-12 20:50:58,507 INFO L226 Difference]: Without dead ends: 1311 [2020-10-12 20:50:58,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2020-10-12 20:50:58,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-10-12 20:50:58,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1289. [2020-10-12 20:50:58,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1289 states. [2020-10-12 20:50:58,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 2045 transitions. [2020-10-12 20:50:58,549 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 2045 transitions. Word has length 115 [2020-10-12 20:50:58,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:50:58,549 INFO L479 AbstractCegarLoop]: Abstraction has 1289 states and 2045 transitions. [2020-10-12 20:50:58,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 20:50:58,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 2045 transitions. [2020-10-12 20:50:58,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-12 20:50:58,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:50:58,552 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:50:58,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-12 20:50:58,552 INFO L427 AbstractCegarLoop]: === Iteration 29 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:50:58,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:50:58,552 INFO L82 PathProgramCache]: Analyzing trace with hash -458181484, now seen corresponding path program 1 times [2020-10-12 20:50:58,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:50:58,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165796161] [2020-10-12 20:50:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:50:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:50:58,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:58,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:50:59,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:03,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:03,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 20:51:03,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:51:03,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4879 [2020-10-12 20:51:03,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:03,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 20:51:03,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 20:51:03,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 20:51:03,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:03,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:51:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:03,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:03,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:03,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:51:03,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:51:03,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:51:03,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:51:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:51:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:51:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:03,888 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 20:51:03,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165796161] [2020-10-12 20:51:03,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 20:51:03,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 20:51:03,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306078546] [2020-10-12 20:51:03,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 20:51:03,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:51:03,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 20:51:03,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-12 20:51:03,890 INFO L87 Difference]: Start difference. First operand 1289 states and 2045 transitions. Second operand 11 states. [2020-10-12 20:51:06,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:51:06,728 INFO L93 Difference]: Finished difference Result 1841 states and 2898 transitions. [2020-10-12 20:51:06,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 20:51:06,729 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 116 [2020-10-12 20:51:06,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:51:06,734 INFO L225 Difference]: With dead ends: 1841 [2020-10-12 20:51:06,734 INFO L226 Difference]: Without dead ends: 1394 [2020-10-12 20:51:06,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-12 20:51:06,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-10-12 20:51:06,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1314. [2020-10-12 20:51:06,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-10-12 20:51:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 2088 transitions. [2020-10-12 20:51:06,776 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 2088 transitions. Word has length 116 [2020-10-12 20:51:06,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:51:06,777 INFO L479 AbstractCegarLoop]: Abstraction has 1314 states and 2088 transitions. [2020-10-12 20:51:06,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 20:51:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 2088 transitions. [2020-10-12 20:51:06,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-12 20:51:06,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:51:06,779 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:51:06,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-12 20:51:06,779 INFO L427 AbstractCegarLoop]: === Iteration 30 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:51:06,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:51:06,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1397605996, now seen corresponding path program 1 times [2020-10-12 20:51:06,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:51:06,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159601214] [2020-10-12 20:51:06,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:51:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:06,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:06,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:08,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:11,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:11,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 20:51:11,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:51:11,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 20:51:11,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 20:51:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 20:51:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 20:51:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:12,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:51:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:12,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:12,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:12,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:51:12,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:51:12,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:51:12,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:12,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:51:12,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:51:12,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:51:12,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:12,061 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 20:51:12,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159601214] [2020-10-12 20:51:12,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 20:51:12,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 20:51:12,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665550122] [2020-10-12 20:51:12,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 20:51:12,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:51:12,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 20:51:12,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-12 20:51:12,063 INFO L87 Difference]: Start difference. First operand 1314 states and 2088 transitions. Second operand 9 states. [2020-10-12 20:51:14,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:51:14,361 INFO L93 Difference]: Finished difference Result 3160 states and 5001 transitions. [2020-10-12 20:51:14,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 20:51:14,361 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 116 [2020-10-12 20:51:14,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:51:14,368 INFO L225 Difference]: With dead ends: 3160 [2020-10-12 20:51:14,368 INFO L226 Difference]: Without dead ends: 1862 [2020-10-12 20:51:14,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-10-12 20:51:14,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2020-10-12 20:51:14,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1310. [2020-10-12 20:51:14,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2020-10-12 20:51:14,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 2084 transitions. [2020-10-12 20:51:14,415 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 2084 transitions. Word has length 116 [2020-10-12 20:51:14,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:51:14,415 INFO L479 AbstractCegarLoop]: Abstraction has 1310 states and 2084 transitions. [2020-10-12 20:51:14,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 20:51:14,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 2084 transitions. [2020-10-12 20:51:14,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-12 20:51:14,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:51:14,418 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:51:14,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-12 20:51:14,418 INFO L427 AbstractCegarLoop]: === Iteration 31 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:51:14,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:51:14,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1531619502, now seen corresponding path program 1 times [2020-10-12 20:51:14,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:51:14,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096740204] [2020-10-12 20:51:14,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:51:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:14,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:14,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:15,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:19,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:19,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 20:51:19,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:51:19,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 20:51:19,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 20:51:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 20:51:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 20:51:19,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:19,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:51:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:19,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:19,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:19,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:51:19,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:51:19,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:51:19,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:19,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:51:19,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:51:19,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:51:19,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:19,833 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 20:51:19,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096740204] [2020-10-12 20:51:19,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 20:51:19,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 20:51:19,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527147755] [2020-10-12 20:51:19,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 20:51:19,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:51:19,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 20:51:19,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-12 20:51:19,835 INFO L87 Difference]: Start difference. First operand 1310 states and 2084 transitions. Second operand 10 states. [2020-10-12 20:51:24,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:51:24,142 INFO L93 Difference]: Finished difference Result 2790 states and 4374 transitions. [2020-10-12 20:51:24,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 20:51:24,144 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 116 [2020-10-12 20:51:24,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:51:24,154 INFO L225 Difference]: With dead ends: 2790 [2020-10-12 20:51:24,154 INFO L226 Difference]: Without dead ends: 2159 [2020-10-12 20:51:24,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-12 20:51:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2159 states. [2020-10-12 20:51:24,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2159 to 1318. [2020-10-12 20:51:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1318 states. [2020-10-12 20:51:24,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 2095 transitions. [2020-10-12 20:51:24,208 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 2095 transitions. Word has length 116 [2020-10-12 20:51:24,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:51:24,209 INFO L479 AbstractCegarLoop]: Abstraction has 1318 states and 2095 transitions. [2020-10-12 20:51:24,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 20:51:24,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 2095 transitions. [2020-10-12 20:51:24,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 20:51:24,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:51:24,213 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:51:24,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-12 20:51:24,217 INFO L427 AbstractCegarLoop]: === Iteration 32 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:51:24,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:51:24,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1322981124, now seen corresponding path program 1 times [2020-10-12 20:51:24,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:51:24,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107209715] [2020-10-12 20:51:24,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:51:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:24,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:24,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:24,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:28,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:28,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 20:51:28,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:51:28,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4483 [2020-10-12 20:51:28,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:28,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 20:51:28,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 20:51:28,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 20:51:28,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:29,259 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 31 [2020-10-12 20:51:29,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:51:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:29,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:29,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:29,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:51:29,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:51:29,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 20:51:29,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:29,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:51:29,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:51:29,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:51:29,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 22 proven. 57 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-12 20:51:29,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107209715] [2020-10-12 20:51:29,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 20:51:29,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 20:51:29,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856145590] [2020-10-12 20:51:29,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 20:51:29,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:51:29,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 20:51:29,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-12 20:51:29,454 INFO L87 Difference]: Start difference. First operand 1318 states and 2095 transitions. Second operand 12 states. [2020-10-12 20:51:32,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:51:32,603 INFO L93 Difference]: Finished difference Result 1891 states and 2980 transitions. [2020-10-12 20:51:32,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 20:51:32,604 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-10-12 20:51:32,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:51:32,610 INFO L225 Difference]: With dead ends: 1891 [2020-10-12 20:51:32,610 INFO L226 Difference]: Without dead ends: 1421 [2020-10-12 20:51:32,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2020-10-12 20:51:32,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2020-10-12 20:51:32,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1319. [2020-10-12 20:51:32,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-10-12 20:51:32,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2096 transitions. [2020-10-12 20:51:32,654 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2096 transitions. Word has length 117 [2020-10-12 20:51:32,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:51:32,654 INFO L479 AbstractCegarLoop]: Abstraction has 1319 states and 2096 transitions. [2020-10-12 20:51:32,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 20:51:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2096 transitions. [2020-10-12 20:51:32,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 20:51:32,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:51:32,657 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:51:32,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-12 20:51:32,657 INFO L427 AbstractCegarLoop]: === Iteration 33 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:51:32,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:51:32,657 INFO L82 PathProgramCache]: Analyzing trace with hash -380530783, now seen corresponding path program 1 times [2020-10-12 20:51:32,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:51:32,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072479567] [2020-10-12 20:51:32,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:51:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:32,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:32,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:33,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:37,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:37,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 20:51:37,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:51:37,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-12 20:51:37,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 20:51:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 20:51:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 20:51:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:38,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:51:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:38,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:38,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:38,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:51:38,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:51:38,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:51:38,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:51:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:51:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:51:38,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 20:51:38,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072479567] [2020-10-12 20:51:38,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 20:51:38,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 20:51:38,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558311052] [2020-10-12 20:51:38,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 20:51:38,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:51:38,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 20:51:38,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 20:51:38,448 INFO L87 Difference]: Start difference. First operand 1319 states and 2096 transitions. Second operand 11 states. [2020-10-12 20:51:41,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:51:41,380 INFO L93 Difference]: Finished difference Result 2984 states and 4724 transitions. [2020-10-12 20:51:41,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 20:51:41,386 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 117 [2020-10-12 20:51:41,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:51:41,394 INFO L225 Difference]: With dead ends: 2984 [2020-10-12 20:51:41,394 INFO L226 Difference]: Without dead ends: 1681 [2020-10-12 20:51:41,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-10-12 20:51:41,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2020-10-12 20:51:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1425. [2020-10-12 20:51:41,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-12 20:51:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2274 transitions. [2020-10-12 20:51:41,446 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2274 transitions. Word has length 117 [2020-10-12 20:51:41,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:51:41,447 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2274 transitions. [2020-10-12 20:51:41,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 20:51:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2274 transitions. [2020-10-12 20:51:41,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 20:51:41,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:51:41,449 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 20:51:41,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-12 20:51:41,450 INFO L427 AbstractCegarLoop]: === Iteration 34 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:51:41,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:51:41,450 INFO L82 PathProgramCache]: Analyzing trace with hash -239982173, now seen corresponding path program 1 times [2020-10-12 20:51:41,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:51:41,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914851183] [2020-10-12 20:51:41,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:51:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:41,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:41,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:42,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:46,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:46,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 20:51:46,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 20:51:46,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4772 [2020-10-12 20:51:46,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:46,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 20:51:46,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 20:51:46,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 20:51:46,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:46,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:51:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:46,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:46,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:46,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:51:46,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:51:46,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 20:51:46,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:46,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:51:46,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:51:46,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:51:46,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 20:51:46,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914851183] [2020-10-12 20:51:46,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 20:51:46,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 20:51:46,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792829926] [2020-10-12 20:51:46,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 20:51:46,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:51:46,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 20:51:46,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-12 20:51:46,463 INFO L87 Difference]: Start difference. First operand 1425 states and 2274 transitions. Second operand 10 states. [2020-10-12 20:51:48,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:51:48,823 INFO L93 Difference]: Finished difference Result 2346 states and 3733 transitions. [2020-10-12 20:51:48,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 20:51:48,824 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 117 [2020-10-12 20:51:48,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:51:48,831 INFO L225 Difference]: With dead ends: 2346 [2020-10-12 20:51:48,831 INFO L226 Difference]: Without dead ends: 1663 [2020-10-12 20:51:48,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-10-12 20:51:48,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2020-10-12 20:51:48,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1471. [2020-10-12 20:51:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1471 states. [2020-10-12 20:51:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 2358 transitions. [2020-10-12 20:51:48,883 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 2358 transitions. Word has length 117 [2020-10-12 20:51:48,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:51:48,883 INFO L479 AbstractCegarLoop]: Abstraction has 1471 states and 2358 transitions. [2020-10-12 20:51:48,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 20:51:48,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 2358 transitions. [2020-10-12 20:51:48,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 20:51:48,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:51:48,886 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] [2020-10-12 20:51:48,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-12 20:51:48,886 INFO L427 AbstractCegarLoop]: === Iteration 35 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:51:48,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:51:48,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1843897808, now seen corresponding path program 1 times [2020-10-12 20:51:48,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:51:48,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060169075] [2020-10-12 20:51:48,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:51:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:48,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:49,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:49,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:49,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 20:51:49,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 20:51:49,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-12 20:51:49,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 20:51:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-12 20:51:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 20:51:49,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:49,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:51:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:49,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:49,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:49,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:51:49,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:51:49,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 20:51:49,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:51:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:51:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:51:49,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-12 20:51:49,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060169075] [2020-10-12 20:51:49,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:51:49,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 20:51:49,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516982449] [2020-10-12 20:51:49,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 20:51:49,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:51:49,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 20:51:49,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 20:51:49,177 INFO L87 Difference]: Start difference. First operand 1471 states and 2358 transitions. Second operand 4 states. [2020-10-12 20:51:49,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:51:49,711 INFO L93 Difference]: Finished difference Result 4379 states and 7033 transitions. [2020-10-12 20:51:49,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 20:51:49,712 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2020-10-12 20:51:49,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:51:49,720 INFO L225 Difference]: With dead ends: 4379 [2020-10-12 20:51:49,720 INFO L226 Difference]: Without dead ends: 2924 [2020-10-12 20:51:49,723 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 [2020-10-12 20:51:49,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2020-10-12 20:51:49,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2924. [2020-10-12 20:51:49,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2924 states. [2020-10-12 20:51:49,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 4677 transitions. [2020-10-12 20:51:49,815 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 4677 transitions. Word has length 117 [2020-10-12 20:51:49,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:51:49,816 INFO L479 AbstractCegarLoop]: Abstraction has 2924 states and 4677 transitions. [2020-10-12 20:51:49,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 20:51:49,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 4677 transitions. [2020-10-12 20:51:49,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-12 20:51:49,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:51:49,845 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] [2020-10-12 20:51:49,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-12 20:51:49,845 INFO L427 AbstractCegarLoop]: === Iteration 36 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:51:49,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:51:49,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1971403898, now seen corresponding path program 1 times [2020-10-12 20:51:49,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:51:49,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136960184] [2020-10-12 20:51:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:51:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:49,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:50,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:50,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 20:51:50,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:51:50,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-12 20:51:50,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 20:51:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-12 20:51:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 20:51:50,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:50,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:51:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:50,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:50,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:50,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:51:50,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:51:50,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 20:51:50,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:50,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:51:50,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:51:50,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:51:50,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:50,121 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-12 20:51:50,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136960184] [2020-10-12 20:51:50,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:51:50,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 20:51:50,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247272735] [2020-10-12 20:51:50,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 20:51:50,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:51:50,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 20:51:50,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 20:51:50,122 INFO L87 Difference]: Start difference. First operand 2924 states and 4677 transitions. Second operand 4 states. [2020-10-12 20:51:50,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:51:50,622 INFO L93 Difference]: Finished difference Result 2926 states and 4678 transitions. [2020-10-12 20:51:50,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 20:51:50,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2020-10-12 20:51:50,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:51:50,629 INFO L225 Difference]: With dead ends: 2926 [2020-10-12 20:51:50,629 INFO L226 Difference]: Without dead ends: 2924 [2020-10-12 20:51:50,630 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 [2020-10-12 20:51:50,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2020-10-12 20:51:50,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2924. [2020-10-12 20:51:50,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2924 states. [2020-10-12 20:51:50,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 4671 transitions. [2020-10-12 20:51:50,712 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 4671 transitions. Word has length 119 [2020-10-12 20:51:50,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:51:50,712 INFO L479 AbstractCegarLoop]: Abstraction has 2924 states and 4671 transitions. [2020-10-12 20:51:50,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 20:51:50,713 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 4671 transitions. [2020-10-12 20:51:50,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-12 20:51:50,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:51:50,716 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] [2020-10-12 20:51:50,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-12 20:51:50,716 INFO L427 AbstractCegarLoop]: === Iteration 37 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:51:50,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:51:50,716 INFO L82 PathProgramCache]: Analyzing trace with hash 297357557, now seen corresponding path program 1 times [2020-10-12 20:51:50,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:51:50,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569864283] [2020-10-12 20:51:50,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:51:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:50,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:50,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:51,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:51,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-12 20:51:51,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 20:51:51,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-10-12 20:51:51,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:51,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 20:51:51,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-12 20:51:51,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 20:51:51,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:51,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 20:51:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 20:51:51,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 20:51:51,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 20:51:51,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 20:51:51,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 20:51:51,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 20:51:51,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 20:51:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 20:51:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 20:51:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 20:51:51,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 20:51:51,407 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-12 20:51:51,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569864283] [2020-10-12 20:51:51,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 20:51:51,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 20:51:51,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870730318] [2020-10-12 20:51:51,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 20:51:51,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 20:51:51,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 20:51:51,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 20:51:51,409 INFO L87 Difference]: Start difference. First operand 2924 states and 4671 transitions. Second operand 5 states. [2020-10-12 20:51:52,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 20:51:52,264 INFO L93 Difference]: Finished difference Result 6456 states and 10264 transitions. [2020-10-12 20:51:52,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 20:51:52,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-10-12 20:51:52,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 20:51:52,273 INFO L225 Difference]: With dead ends: 6456 [2020-10-12 20:51:52,273 INFO L226 Difference]: Without dead ends: 3548 [2020-10-12 20:51:52,278 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 [2020-10-12 20:51:52,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2020-10-12 20:51:52,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3212. [2020-10-12 20:51:52,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3212 states. [2020-10-12 20:51:52,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 5175 transitions. [2020-10-12 20:51:52,399 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 5175 transitions. Word has length 121 [2020-10-12 20:51:52,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 20:51:52,400 INFO L479 AbstractCegarLoop]: Abstraction has 3212 states and 5175 transitions. [2020-10-12 20:51:52,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 20:51:52,400 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 5175 transitions. [2020-10-12 20:51:52,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-12 20:51:52,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 20:51:52,405 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] [2020-10-12 20:51:52,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-12 20:51:52,406 INFO L427 AbstractCegarLoop]: === Iteration 38 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 20:51:52,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 20:51:52,407 INFO L82 PathProgramCache]: Analyzing trace with hash 687102961, now seen corresponding path program 1 times [2020-10-12 20:51:52,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 20:51:52,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840218434] [2020-10-12 20:51:52,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 20:51:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 20:51:52,507 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 20:51:52,507 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 20:51:52,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-12 20:51:52,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 08:51:52 BoogieIcfgContainer [2020-10-12 20:51:52,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 20:51:52,589 INFO L168 Benchmark]: Toolchain (without parser) took 137114.14 ms. Allocated memory was 142.1 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 101.5 MB in the beginning and 652.0 MB in the end (delta: -550.5 MB). Peak memory consumption was 935.9 MB. Max. memory is 7.1 GB. [2020-10-12 20:51:52,589 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 142.1 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 20:51:52,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 906.97 ms. Allocated memory was 142.1 MB in the beginning and 207.6 MB in the end (delta: 65.5 MB). Free memory was 101.3 MB in the beginning and 168.0 MB in the end (delta: -66.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2020-10-12 20:51:52,590 INFO L168 Benchmark]: Boogie Preprocessor took 181.98 ms. Allocated memory is still 207.6 MB. Free memory was 168.0 MB in the beginning and 160.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. [2020-10-12 20:51:52,591 INFO L168 Benchmark]: RCFGBuilder took 1129.08 ms. Allocated memory was 207.6 MB in the beginning and 236.5 MB in the end (delta: 28.8 MB). Free memory was 160.8 MB in the beginning and 178.8 MB in the end (delta: -18.0 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB. [2020-10-12 20:51:52,591 INFO L168 Benchmark]: TraceAbstraction took 134891.14 ms. Allocated memory was 236.5 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 178.8 MB in the beginning and 652.0 MB in the end (delta: -473.2 MB). Peak memory consumption was 918.8 MB. Max. memory is 7.1 GB. [2020-10-12 20:51:52,593 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 142.1 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 906.97 ms. Allocated memory was 142.1 MB in the beginning and 207.6 MB in the end (delta: 65.5 MB). Free memory was 101.3 MB in the beginning and 168.0 MB in the end (delta: -66.7 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 181.98 ms. Allocated memory is still 207.6 MB. Free memory was 168.0 MB in the beginning and 160.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1129.08 ms. Allocated memory was 207.6 MB in the beginning and 236.5 MB in the end (delta: 28.8 MB). Free memory was 160.8 MB in the beginning and 178.8 MB in the end (delta: -18.0 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 134891.14 ms. Allocated memory was 236.5 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 178.8 MB in the beginning and 652.0 MB in the end (delta: -473.2 MB). Peak memory consumption was 918.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1644]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 1329. Possible FailurePath: [L1042] static int init = 1; [L1043] static SSL_METHOD SSLv3_client_data ; [L1065] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1069] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1070] s->ctx = malloc(sizeof(SSL_CTX)) [L1071] s->session = malloc(sizeof(SSL_SESSION)) [L1072] s->state = 12292 [L1073] s->version = __VERIFIER_nondet_int() [L1074] CALL ssl3_connect(s) [L1080] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1081] unsigned long tmp ; [L1082] unsigned long l ; [L1083] long num1 ; [L1084] void (*cb)() ; [L1085] int ret ; [L1086] int new_state ; [L1087] int state ; [L1088] int skip ; [L1089] int tmp___1 = __VERIFIER_nondet_int() ; [L1090] int tmp___2 = __VERIFIER_nondet_int() ; [L1091] int tmp___3 ; [L1092] int tmp___4 ; [L1093] int tmp___5 ; [L1094] int tmp___6 ; [L1095] int tmp___7 ; [L1096] int tmp___8 ; [L1097] long tmp___9 ; [L1099] int blastFlag ; [L1102] blastFlag = 0 [L1103] s->hit=__VERIFIER_nondet_int () [L1104] s->state = 12292 [L1105] tmp = __VERIFIER_nondet_int() [L1106] cb = (void (*)())((void *)0) [L1107] ret = -1 [L1108] skip = 0 [L1109] EXPR s->info_callback [L1109] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1110] EXPR s->info_callback [L1110] cb = s->info_callback [L1118] EXPR s->in_handshake [L1118] s->in_handshake += 1 [L1119] COND FALSE !(tmp___1 & 12288) [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND TRUE s->state == 12292 [L1235] s->new_session = 1 [L1236] s->state = 4096 [L1237] EXPR s->ctx [L1237] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1237] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1242] s->server = 0 [L1243] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) [L1248] EXPR s->version [L1248] COND FALSE !((s->version & 65280) != 768) [L1254] s->type = 4096 [L1255] EXPR s->init_buf [L1255] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1267] tmp___4 = __VERIFIER_nondet_int() [L1268] COND FALSE !(! tmp___4) [L1274] tmp___5 = __VERIFIER_nondet_int() [L1275] COND FALSE !(! tmp___5) [L1281] s->state = 4368 [L1282] EXPR s->ctx [L1282] EXPR (s->ctx)->stats.sess_connect [L1282] (s->ctx)->stats.sess_connect += 1 [L1283] s->init_num = 0 [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND TRUE s->state == 4368 [L1287] s->shutdown = 0 [L1288] ret = __VERIFIER_nondet_int() [L1289] COND TRUE blastFlag == 0 [L1290] blastFlag = 1 [L1294] COND FALSE !(ret <= 0) [L1299] s->state = 4384 [L1300] s->init_num = 0 [L1301] EXPR s->bbio [L1301] EXPR s->wbio [L1301] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND TRUE s->state == 4384 [L1309] ret = __VERIFIER_nondet_int() [L1310] COND TRUE blastFlag == 1 [L1311] blastFlag = 2 [L1315] COND FALSE !(ret <= 0) [L1320] s->hit [L1320] COND FALSE !(s->hit) [L1323] s->state = 4400 [L1325] s->init_num = 0 [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND FALSE !(s->state == 4384) [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 4385) [L1159] EXPR s->state [L1159] COND TRUE s->state == 4400 [L1329] EXPR s->s3 [L1329] EXPR (s->s3)->tmp.new_cipher [L1329] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1329] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1332] ret = __VERIFIER_nondet_int() [L1333] COND TRUE blastFlag == 2 [L1334] blastFlag = 3 [L1338] COND FALSE !(ret <= 0) [L1344] s->state = 4416 [L1345] s->init_num = 0 [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND FALSE !(s->state == 4384) [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 4385) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 4400) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4401) [L1165] EXPR s->state [L1165] COND TRUE s->state == 4416 [L1349] ret = __VERIFIER_nondet_int() [L1350] COND TRUE blastFlag == 3 [L1351] blastFlag = 4 [L1355] COND FALSE !(ret <= 0) [L1360] s->state = 4432 [L1361] s->init_num = 0 [L1362] tmp___6 = __VERIFIER_nondet_int() [L1363] COND FALSE !(! tmp___6) [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND FALSE !(s->state == 4384) [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 4385) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 4400) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4401) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 4416) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4417) [L1171] EXPR s->state [L1171] COND TRUE s->state == 4432 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND FALSE !(blastFlag == 5) [L1378] COND FALSE !(ret <= 0) [L1383] s->state = 4448 [L1384] s->init_num = 0 [L1603] EXPR s->s3 [L1603] EXPR (s->s3)->tmp.reuse_message [L1603] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1632] skip = 0 [L1129] COND TRUE 1 [L1131] EXPR s->state [L1131] state = s->state [L1132] EXPR s->state [L1132] COND FALSE !(s->state == 12292) [L1135] EXPR s->state [L1135] COND FALSE !(s->state == 16384) [L1138] EXPR s->state [L1138] COND FALSE !(s->state == 4096) [L1141] EXPR s->state [L1141] COND FALSE !(s->state == 20480) [L1144] EXPR s->state [L1144] COND FALSE !(s->state == 4099) [L1147] EXPR s->state [L1147] COND FALSE !(s->state == 4368) [L1150] EXPR s->state [L1150] COND FALSE !(s->state == 4369) [L1153] EXPR s->state [L1153] COND FALSE !(s->state == 4384) [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 4385) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 4400) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4401) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 4416) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4417) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4432) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4433) [L1177] EXPR s->state [L1177] COND TRUE s->state == 4448 [L1388] ret = __VERIFIER_nondet_int() [L1389] COND TRUE blastFlag == 4 [L1644] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 168 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 134.7s, OverallIterations: 38, TraceHistogramMax: 7, AutomataDifference: 48.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6838 SDtfs, 6652 SDslu, 15872 SDs, 0 SdLazy, 23367 SolverSat, 1174 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 36.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 425 GetRequests, 144 SyntacticMatches, 54 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3212occurred in iteration=37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 37 MinimizatonAttempts, 5050 StatesRemovedByMinimization, 35 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 82.2s InterpolantComputationTime, 3764 NumberOfCodeBlocks, 3764 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 3584 ConstructedInterpolants, 0 QuantifiedInterpolants, 2841244 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 37 InterpolantComputations, 28 PerfectInterpolantSequences, 2462/2886 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...