/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:30:08,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:30:08,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:30:08,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:30:08,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:30:08,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:30:08,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:30:08,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:30:08,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:30:08,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:30:08,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:30:08,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:30:08,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:30:08,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:30:08,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:30:08,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:30:08,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:30:08,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:30:08,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:30:08,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:30:08,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:30:08,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:30:08,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:30:08,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:30:08,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:30:08,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:30:08,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:30:08,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:30:08,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:30:08,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:30:08,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:30:08,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:30:08,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:30:08,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:30:08,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:30:08,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:30:08,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:30:08,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:30:08,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:30:08,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:30:08,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:30:08,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:30:08,253 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:30:08,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:30:08,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:30:08,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:30:08,255 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:30:08,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:30:08,255 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:30:08,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:30:08,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:30:08,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:30:08,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:30:08,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:30:08,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:30:08,257 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:30:08,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:30:08,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:30:08,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:30:08,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:30:08,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:30:08,260 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:30:08,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:30:08,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:30:08,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:30:08,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:30:08,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:30:08,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:30:08,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:30:08,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:30:08,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:30:08,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:30:08,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:30:08,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:30:08,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:30:08,777 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:30:08,777 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:30:08,778 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2020-09-25 05:30:08,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b24a939f0/2be49fb917cb46bf93bdd97c611b8ad3/FLAGec35130a5 [2020-09-25 05:30:09,503 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:30:09,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2020-09-25 05:30:09,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b24a939f0/2be49fb917cb46bf93bdd97c611b8ad3/FLAGec35130a5 [2020-09-25 05:30:09,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b24a939f0/2be49fb917cb46bf93bdd97c611b8ad3 [2020-09-25 05:30:09,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:30:09,734 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:30:09,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:30:09,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:30:09,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:30:09,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:30:09" (1/1) ... [2020-09-25 05:30:09,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a94298b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:09, skipping insertion in model container [2020-09-25 05:30:09,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:30:09" (1/1) ... [2020-09-25 05:30:09,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:30:09,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:30:10,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:30:10,102 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:30:10,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:30:10,284 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:30:10,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:10 WrapperNode [2020-09-25 05:30:10,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:30:10,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:30:10,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:30:10,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:30:10,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:10" (1/1) ... [2020-09-25 05:30:10,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:10" (1/1) ... [2020-09-25 05:30:10,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:10" (1/1) ... [2020-09-25 05:30:10,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:10" (1/1) ... [2020-09-25 05:30:10,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:10" (1/1) ... [2020-09-25 05:30:10,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:10" (1/1) ... [2020-09-25 05:30:10,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:10" (1/1) ... [2020-09-25 05:30:10,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:30:10,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:30:10,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:30:10,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:30:10,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:30:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:30:10,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:30:10,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 05:30:10,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:30:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:30:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 05:30:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:30:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 05:30:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 05:30:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 05:30:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:30:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:30:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:30:10,665 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 05:30:11,403 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 05:30:11,403 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 05:30:11,441 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:30:11,441 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 05:30:11,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:30:11 BoogieIcfgContainer [2020-09-25 05:30:11,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:30:11,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:30:11,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:30:11,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:30:11,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:30:09" (1/3) ... [2020-09-25 05:30:11,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38522fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:30:11, skipping insertion in model container [2020-09-25 05:30:11,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:10" (2/3) ... [2020-09-25 05:30:11,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38522fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:30:11, skipping insertion in model container [2020-09-25 05:30:11,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:30:11" (3/3) ... [2020-09-25 05:30:11,461 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-2.c [2020-09-25 05:30:11,474 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:30:11,486 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:30:11,510 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:30:11,547 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:30:11,548 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:30:11,548 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:30:11,548 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:30:11,548 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:30:11,549 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:30:11,549 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:30:11,549 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:30:11,582 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states. [2020-09-25 05:30:11,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 05:30:11,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:11,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:11,605 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:11,612 INFO L82 PathProgramCache]: Analyzing trace with hash 44117518, now seen corresponding path program 1 times [2020-09-25 05:30:11,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:11,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380813320] [2020-09-25 05:30:11,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:11,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:12,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:12,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:12,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:12,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 05:30:12,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:12,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1084 [2020-09-25 05:30:12,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:12,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:12,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:12,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-09-25 05:30:13,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 05:30:13,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:30:13,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:13,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:13,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:13,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:13,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:13,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:13,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:13,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:13,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:13,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380813320] [2020-09-25 05:30:13,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:13,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:13,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014279538] [2020-09-25 05:30:13,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:13,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:13,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:13,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:13,250 INFO L87 Difference]: Start difference. First operand 414 states. Second operand 3 states. [2020-09-25 05:30:13,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:13,399 INFO L93 Difference]: Finished difference Result 900 states and 1157 transitions. [2020-09-25 05:30:13,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:13,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 05:30:13,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:13,426 INFO L225 Difference]: With dead ends: 900 [2020-09-25 05:30:13,426 INFO L226 Difference]: Without dead ends: 574 [2020-09-25 05:30:13,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:13,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-09-25 05:30:13,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2020-09-25 05:30:13,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-09-25 05:30:13,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 680 transitions. [2020-09-25 05:30:13,531 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 680 transitions. Word has length 181 [2020-09-25 05:30:13,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:13,532 INFO L479 AbstractCegarLoop]: Abstraction has 574 states and 680 transitions. [2020-09-25 05:30:13,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:13,532 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 680 transitions. [2020-09-25 05:30:13,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 05:30:13,539 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:13,539 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:13,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:30:13,540 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:13,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:13,540 INFO L82 PathProgramCache]: Analyzing trace with hash 157739509, now seen corresponding path program 1 times [2020-09-25 05:30:13,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:13,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037085097] [2020-09-25 05:30:13,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:13,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:13,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:14,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:14,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:14,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:15,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:15,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 05:30:15,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:30:15,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1802 [2020-09-25 05:30:15,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:15,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-25 05:30:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 05:30:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 35 [2020-09-25 05:30:15,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:15,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:15,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:15,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:15,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:15,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:30:15,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:15,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:15,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:15,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:30:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:15,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037085097] [2020-09-25 05:30:15,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:15,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:15,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104400082] [2020-09-25 05:30:15,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:15,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:15,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:15,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:15,577 INFO L87 Difference]: Start difference. First operand 574 states and 680 transitions. Second operand 3 states. [2020-09-25 05:30:15,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:15,670 INFO L93 Difference]: Finished difference Result 985 states and 1198 transitions. [2020-09-25 05:30:15,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:15,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-09-25 05:30:15,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:15,680 INFO L225 Difference]: With dead ends: 985 [2020-09-25 05:30:15,680 INFO L226 Difference]: Without dead ends: 776 [2020-09-25 05:30:15,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:15,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-09-25 05:30:15,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 776. [2020-09-25 05:30:15,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2020-09-25 05:30:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 932 transitions. [2020-09-25 05:30:15,745 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 932 transitions. Word has length 203 [2020-09-25 05:30:15,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:15,747 INFO L479 AbstractCegarLoop]: Abstraction has 776 states and 932 transitions. [2020-09-25 05:30:15,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:15,747 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 932 transitions. [2020-09-25 05:30:15,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 05:30:15,756 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:15,757 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:15,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:30:15,758 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:15,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:15,758 INFO L82 PathProgramCache]: Analyzing trace with hash -629663792, now seen corresponding path program 1 times [2020-09-25 05:30:15,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:15,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [916271672] [2020-09-25 05:30:15,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:15,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:16,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:16,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:16,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:17,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-25 05:30:17,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:30:17,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1461 [2020-09-25 05:30:17,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:17,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-25 05:30:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 05:30:17,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:17,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:17,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:17,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:17,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:17,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:17,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:17,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:17,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:17,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:17,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:17,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:17,368 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 05:30:17,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [916271672] [2020-09-25 05:30:17,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:17,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:17,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587040132] [2020-09-25 05:30:17,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:17,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:17,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:17,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:17,372 INFO L87 Difference]: Start difference. First operand 776 states and 932 transitions. Second operand 3 states. [2020-09-25 05:30:17,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:17,468 INFO L93 Difference]: Finished difference Result 1389 states and 1702 transitions. [2020-09-25 05:30:17,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:17,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-25 05:30:17,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:17,474 INFO L225 Difference]: With dead ends: 1389 [2020-09-25 05:30:17,475 INFO L226 Difference]: Without dead ends: 978 [2020-09-25 05:30:17,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:17,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2020-09-25 05:30:17,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2020-09-25 05:30:17,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2020-09-25 05:30:17,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1185 transitions. [2020-09-25 05:30:17,505 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1185 transitions. Word has length 224 [2020-09-25 05:30:17,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:17,506 INFO L479 AbstractCegarLoop]: Abstraction has 978 states and 1185 transitions. [2020-09-25 05:30:17,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:17,506 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1185 transitions. [2020-09-25 05:30:17,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-25 05:30:17,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:17,511 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:17,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:30:17,512 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:17,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:17,512 INFO L82 PathProgramCache]: Analyzing trace with hash -649785374, now seen corresponding path program 1 times [2020-09-25 05:30:17,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:17,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220905168] [2020-09-25 05:30:17,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:17,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:18,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:18,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:18,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:20,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:20,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 05:30:20,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:30:20,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3352 [2020-09-25 05:30:20,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:20,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-09-25 05:30:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 05:30:20,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:30:20,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:20,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:20,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:20,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:20,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:20,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:20,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:20,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:20,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:20,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:20,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:20,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:30:21,039 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 05:30:21,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220905168] [2020-09-25 05:30:21,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:21,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:21,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240320757] [2020-09-25 05:30:21,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:21,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:21,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:21,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:21,043 INFO L87 Difference]: Start difference. First operand 978 states and 1185 transitions. Second operand 3 states. [2020-09-25 05:30:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:21,114 INFO L93 Difference]: Finished difference Result 1793 states and 2208 transitions. [2020-09-25 05:30:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:21,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2020-09-25 05:30:21,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:21,121 INFO L225 Difference]: With dead ends: 1793 [2020-09-25 05:30:21,121 INFO L226 Difference]: Without dead ends: 1180 [2020-09-25 05:30:21,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2020-09-25 05:30:21,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1180. [2020-09-25 05:30:21,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2020-09-25 05:30:21,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1439 transitions. [2020-09-25 05:30:21,151 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1439 transitions. Word has length 248 [2020-09-25 05:30:21,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:21,152 INFO L479 AbstractCegarLoop]: Abstraction has 1180 states and 1439 transitions. [2020-09-25 05:30:21,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:21,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1439 transitions. [2020-09-25 05:30:21,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-09-25 05:30:21,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:21,159 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:21,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:30:21,159 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:21,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:21,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1398555413, now seen corresponding path program 1 times [2020-09-25 05:30:21,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:21,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580668658] [2020-09-25 05:30:21,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:21,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:22,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:22,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-25 05:30:22,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1456 [2020-09-25 05:30:22,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:22,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:22,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-09-25 05:30:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 05:30:22,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:22,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:22,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:22,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:22,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:22,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:22,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:22,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:22,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:22,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:22,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:22,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:22,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:22,763 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 05:30:22,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580668658] [2020-09-25 05:30:22,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:22,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:22,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842122288] [2020-09-25 05:30:22,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:22,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:22,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:22,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:22,766 INFO L87 Difference]: Start difference. First operand 1180 states and 1439 transitions. Second operand 3 states. [2020-09-25 05:30:23,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:23,037 INFO L93 Difference]: Finished difference Result 2537 states and 3241 transitions. [2020-09-25 05:30:23,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:23,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2020-09-25 05:30:23,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:23,046 INFO L225 Difference]: With dead ends: 2537 [2020-09-25 05:30:23,046 INFO L226 Difference]: Without dead ends: 1515 [2020-09-25 05:30:23,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:23,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2020-09-25 05:30:23,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1400. [2020-09-25 05:30:23,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1400 states. [2020-09-25 05:30:23,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1704 transitions. [2020-09-25 05:30:23,091 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1704 transitions. Word has length 273 [2020-09-25 05:30:23,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:23,092 INFO L479 AbstractCegarLoop]: Abstraction has 1400 states and 1704 transitions. [2020-09-25 05:30:23,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:23,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1704 transitions. [2020-09-25 05:30:23,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-09-25 05:30:23,099 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:23,099 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:23,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:30:23,100 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:23,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:23,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1035579061, now seen corresponding path program 1 times [2020-09-25 05:30:23,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:23,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19990828] [2020-09-25 05:30:23,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:23,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:23,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:24,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:24,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-25 05:30:24,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:24,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1323 [2020-09-25 05:30:24,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:24,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:24,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:30:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 05:30:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-25 05:30:24,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:24,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:24,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:24,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:24,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:24,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:24,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:24,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:24,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:24,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:24,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:24,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:24,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:30:24,765 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 05:30:24,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19990828] [2020-09-25 05:30:24,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:24,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:30:24,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944427854] [2020-09-25 05:30:24,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:30:24,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:24,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:30:24,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:30:24,768 INFO L87 Difference]: Start difference. First operand 1400 states and 1704 transitions. Second operand 6 states. [2020-09-25 05:30:25,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:25,012 INFO L93 Difference]: Finished difference Result 2773 states and 3437 transitions. [2020-09-25 05:30:25,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:30:25,012 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 273 [2020-09-25 05:30:25,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:25,020 INFO L225 Difference]: With dead ends: 2773 [2020-09-25 05:30:25,020 INFO L226 Difference]: Without dead ends: 1536 [2020-09-25 05:30:25,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:30:25,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2020-09-25 05:30:25,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1490. [2020-09-25 05:30:25,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-09-25 05:30:25,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1844 transitions. [2020-09-25 05:30:25,067 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1844 transitions. Word has length 273 [2020-09-25 05:30:25,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:25,067 INFO L479 AbstractCegarLoop]: Abstraction has 1490 states and 1844 transitions. [2020-09-25 05:30:25,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:30:25,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1844 transitions. [2020-09-25 05:30:25,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-25 05:30:25,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:25,075 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:25,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:30:25,076 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:25,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:25,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1988234171, now seen corresponding path program 1 times [2020-09-25 05:30:25,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:25,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764381654] [2020-09-25 05:30:25,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:25,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:25,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:25,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:25,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-09-25 05:30:25,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:25,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 799 [2020-09-25 05:30:25,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:25,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:25,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:30:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 05:30:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-09-25 05:30:25,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:26,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:26,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:26,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:26,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:26,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:26,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:26,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:26,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:26,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:26,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:26,106 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 05:30:26,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764381654] [2020-09-25 05:30:26,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:26,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:30:26,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260160615] [2020-09-25 05:30:26,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:30:26,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:26,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:30:26,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:30:26,109 INFO L87 Difference]: Start difference. First operand 1490 states and 1844 transitions. Second operand 6 states. [2020-09-25 05:30:26,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:26,412 INFO L93 Difference]: Finished difference Result 2956 states and 3700 transitions. [2020-09-25 05:30:26,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:30:26,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 274 [2020-09-25 05:30:26,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:26,422 INFO L225 Difference]: With dead ends: 2956 [2020-09-25 05:30:26,423 INFO L226 Difference]: Without dead ends: 1601 [2020-09-25 05:30:26,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:30:26,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2020-09-25 05:30:26,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1496. [2020-09-25 05:30:26,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2020-09-25 05:30:26,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1852 transitions. [2020-09-25 05:30:26,471 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1852 transitions. Word has length 274 [2020-09-25 05:30:26,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:26,472 INFO L479 AbstractCegarLoop]: Abstraction has 1496 states and 1852 transitions. [2020-09-25 05:30:26,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:30:26,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1852 transitions. [2020-09-25 05:30:26,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-09-25 05:30:26,479 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:26,480 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:26,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:30:26,480 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:26,481 INFO L82 PathProgramCache]: Analyzing trace with hash -92086631, now seen corresponding path program 1 times [2020-09-25 05:30:26,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:26,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57421223] [2020-09-25 05:30:26,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:26,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:26,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:27,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:27,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-09-25 05:30:27,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:27,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1055 [2020-09-25 05:30:27,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:27,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:30:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 05:30:27,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-09-25 05:30:27,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:27,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:27,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:27,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:27,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:27,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:27,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:27,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:27,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:27,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:27,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:27,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:27,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 05:30:27,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57421223] [2020-09-25 05:30:27,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:27,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:30:27,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763029026] [2020-09-25 05:30:27,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:30:27,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:27,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:30:27,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:30:27,754 INFO L87 Difference]: Start difference. First operand 1496 states and 1852 transitions. Second operand 6 states. [2020-09-25 05:30:27,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:27,981 INFO L93 Difference]: Finished difference Result 3008 states and 3759 transitions. [2020-09-25 05:30:27,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:30:27,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 295 [2020-09-25 05:30:27,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:27,989 INFO L225 Difference]: With dead ends: 3008 [2020-09-25 05:30:27,989 INFO L226 Difference]: Without dead ends: 1681 [2020-09-25 05:30:27,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:30:27,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2020-09-25 05:30:28,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1566. [2020-09-25 05:30:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1566 states. [2020-09-25 05:30:28,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 1941 transitions. [2020-09-25 05:30:28,037 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 1941 transitions. Word has length 295 [2020-09-25 05:30:28,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:28,038 INFO L479 AbstractCegarLoop]: Abstraction has 1566 states and 1941 transitions. [2020-09-25 05:30:28,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:30:28,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 1941 transitions. [2020-09-25 05:30:28,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-09-25 05:30:28,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:28,045 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:28,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:30:28,045 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:28,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:28,046 INFO L82 PathProgramCache]: Analyzing trace with hash -652006092, now seen corresponding path program 1 times [2020-09-25 05:30:28,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:28,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725380869] [2020-09-25 05:30:28,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:28,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:28,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-09-25 05:30:28,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:28,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-09-25 05:30:28,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:28,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:28,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:30:28,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 05:30:28,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-25 05:30:28,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:28,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:28,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:28,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:28,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:28,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:28,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:28,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:28,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:28,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 05:30:28,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1725380869] [2020-09-25 05:30:28,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:28,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:30:28,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164383744] [2020-09-25 05:30:28,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:30:28,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:28,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:30:28,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:30:28,995 INFO L87 Difference]: Start difference. First operand 1566 states and 1941 transitions. Second operand 6 states. [2020-09-25 05:30:29,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:29,327 INFO L93 Difference]: Finished difference Result 3228 states and 4128 transitions. [2020-09-25 05:30:29,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:30:29,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 297 [2020-09-25 05:30:29,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:29,336 INFO L225 Difference]: With dead ends: 3228 [2020-09-25 05:30:29,337 INFO L226 Difference]: Without dead ends: 1828 [2020-09-25 05:30:29,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:30:29,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2020-09-25 05:30:29,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1573. [2020-09-25 05:30:29,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1573 states. [2020-09-25 05:30:29,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 1942 transitions. [2020-09-25 05:30:29,403 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 1942 transitions. Word has length 297 [2020-09-25 05:30:29,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:29,404 INFO L479 AbstractCegarLoop]: Abstraction has 1573 states and 1942 transitions. [2020-09-25 05:30:29,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:30:29,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 1942 transitions. [2020-09-25 05:30:29,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-09-25 05:30:29,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:29,412 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:29,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 05:30:29,413 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:29,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:29,413 INFO L82 PathProgramCache]: Analyzing trace with hash -638739787, now seen corresponding path program 1 times [2020-09-25 05:30:29,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:29,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874728342] [2020-09-25 05:30:29,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:30:29,478 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:30:29,479 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:30:29,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 05:30:29,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:30:29 BoogieIcfgContainer [2020-09-25 05:30:29,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:30:29,556 INFO L168 Benchmark]: Toolchain (without parser) took 19824.56 ms. Allocated memory was 140.0 MB in the beginning and 488.6 MB in the end (delta: 348.7 MB). Free memory was 102.9 MB in the beginning and 144.6 MB in the end (delta: -41.7 MB). Peak memory consumption was 307.0 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:29,557 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:30:29,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.00 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 178.4 MB in the end (delta: -76.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:29,560 INFO L168 Benchmark]: Boogie Preprocessor took 81.34 ms. Allocated memory is still 203.4 MB. Free memory was 178.4 MB in the beginning and 175.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:29,565 INFO L168 Benchmark]: RCFGBuilder took 1082.98 ms. Allocated memory is still 203.4 MB. Free memory was 175.6 MB in the beginning and 108.0 MB in the end (delta: 67.6 MB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:29,565 INFO L168 Benchmark]: TraceAbstraction took 18100.16 ms. Allocated memory was 203.4 MB in the beginning and 488.6 MB in the end (delta: 285.2 MB). Free memory was 107.3 MB in the beginning and 144.6 MB in the end (delta: -37.2 MB). Peak memory consumption was 248.0 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:29,577 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 551.00 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 178.4 MB in the end (delta: -76.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.34 ms. Allocated memory is still 203.4 MB. Free memory was 178.4 MB in the beginning and 175.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1082.98 ms. Allocated memory is still 203.4 MB. Free memory was 175.6 MB in the beginning and 108.0 MB in the end (delta: 67.6 MB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18100.16 ms. Allocated memory was 203.4 MB in the beginning and 488.6 MB in the end (delta: 285.2 MB). Free memory was 107.3 MB in the beginning and 144.6 MB in the end (delta: -37.2 MB). Peak memory consumption was 248.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 573]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L578] int s ; [L582] s = 12292 [L583] CALL ssl3_connect(s) [L12] int s__info_callback = __VERIFIER_nondet_int() ; [L13] int s__in_handshake = __VERIFIER_nondet_int() ; [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int() ; [L18] int s__type ; [L19] int s__init_num ; [L20] int s__bbio = __VERIFIER_nondet_int() ; [L21] int s__wbio = __VERIFIER_nondet_int() ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int s__rwstate ; [L24] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L25] int s__debug = __VERIFIER_nondet_int() ; [L26] int s__shutdown ; [L27] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L32] int s__s3__change_cipher_spec ; [L33] int s__s3__flags = __VERIFIER_nondet_int() ; [L34] int s__s3__delay_buf_pop_ret ; [L35] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int s__session__compress_meth ; [L44] int buf ; [L45] unsigned long tmp ; [L46] unsigned long l ; [L47] int num1 = __VERIFIER_nondet_int() ; [L48] int cb ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int tmp___0 ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 = __VERIFIER_nondet_int() ; [L57] int tmp___4 = __VERIFIER_nondet_int() ; [L58] int tmp___5 = __VERIFIER_nondet_int() ; [L59] int tmp___6 = __VERIFIER_nondet_int() ; [L60] int tmp___7 = __VERIFIER_nondet_int() ; [L61] int tmp___8 = __VERIFIER_nondet_int() ; [L62] int tmp___9 = __VERIFIER_nondet_int() ; [L63] int blastFlag ; [L64] int __cil_tmp55 ; [L65] void *__cil_tmp56 ; [L66] unsigned long __cil_tmp57 ; [L67] unsigned long __cil_tmp58 = __VERIFIER_nondet_ulong() ; [L68] void *__cil_tmp59 ; [L69] unsigned long __cil_tmp60 ; [L70] unsigned long __cil_tmp61 ; [L71] unsigned long __cil_tmp62 ; [L72] unsigned long __cil_tmp63 ; [L73] unsigned long __cil_tmp64 ; [L74] long __cil_tmp65 = __VERIFIER_nondet_long() ; [L75] long __cil_tmp66 ; [L76] long __cil_tmp67 ; [L77] long __cil_tmp68 ; [L78] long __cil_tmp69 ; [L79] long __cil_tmp70 = __VERIFIER_nondet_long() ; [L80] long __cil_tmp71 ; [L81] long __cil_tmp72 ; [L82] long __cil_tmp73 ; [L83] long __cil_tmp74 ; [L87] s__state = initial_state [L88] blastFlag = 0 [L89] tmp = __VERIFIER_nondet_int() [L90] cb = 0 [L91] ret = -1 [L92] skip = 0 [L93] tmp___0 = 0 [L94] COND TRUE s__info_callback != 0 [L95] cb = s__info_callback [L101] s__in_handshake ++ [L102] COND FALSE !(tmp___1 + 12288) [L108] COND TRUE 1 [L110] state = s__state [L111] COND TRUE s__state == 12292 [L213] s__new_session = 1 [L214] s__state = 4096 [L215] s__ctx__stats__sess_connect_renegotiate ++ [L220] s__server = 0 [L221] COND TRUE cb != 0 [L225] __cil_tmp55 = s__version + 65280 [L226] COND FALSE !(__cil_tmp55 != 768) [L231] s__type = 4096 [L233] __cil_tmp56 = (void *)0 [L234] __cil_tmp57 = (unsigned long )__cil_tmp56 [L235] __cil_tmp58 = (unsigned long )s__init_buf___0 [L236] COND FALSE !(__cil_tmp58 == __cil_tmp57) [L254] COND FALSE !(! tmp___4) [L258] COND FALSE !(! tmp___5) [L262] s__state = 4368 [L263] s__ctx__stats__sess_connect ++ [L264] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND TRUE s__state == 4368 [L268] s__shutdown = 0 [L269] ret = __VERIFIER_nondet_int() [L270] COND TRUE blastFlag == 0 [L271] blastFlag = 1 [L273] COND FALSE !(ret <= 0) [L276] s__state = 4384 [L277] s__init_num = 0 [L279] __cil_tmp62 = (unsigned long )s__wbio [L280] __cil_tmp63 = (unsigned long )s__bbio [L281] COND TRUE __cil_tmp63 != __cil_tmp62 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND TRUE s__state == 4384 [L288] ret = __VERIFIER_nondet_int() [L289] COND TRUE blastFlag == 1 [L290] blastFlag = 2 [L296] COND FALSE !(ret <= 0) [L299] COND FALSE !(\read(s__hit)) [L302] s__state = 4400 [L304] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND TRUE s__state == 4400 [L309] __cil_tmp64 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L310] COND FALSE !(__cil_tmp64 + 256UL) [L313] ret = __VERIFIER_nondet_int() [L314] COND TRUE blastFlag == 2 [L315] blastFlag = 3 [L317] COND FALSE !(ret <= 0) [L322] s__state = 4416 [L323] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND FALSE !(s__state == 4400) [L141] COND FALSE !(s__state == 4401) [L144] COND TRUE s__state == 4416 [L327] ret = __VERIFIER_nondet_int() [L328] COND TRUE blastFlag == 3 [L329] blastFlag = 4 [L331] COND FALSE !(ret <= 0) [L334] s__state = 4432 [L335] s__init_num = 0 [L336] COND FALSE !(! tmp___6) [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND FALSE !(s__state == 4400) [L141] COND FALSE !(s__state == 4401) [L144] COND FALSE !(s__state == 4416) [L147] COND FALSE !(s__state == 4417) [L150] COND TRUE s__state == 4432 [L343] ret = __VERIFIER_nondet_int() [L344] COND TRUE blastFlag == 4 [L573] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 414 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.9s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3671 SDtfs, 5201 SDslu, 4322 SDs, 0 SdLazy, 857 SolverSat, 184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1573occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 636 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 2567 NumberOfCodeBlocks, 2567 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2259 ConstructedInterpolants, 0 QuantifiedInterpolants, 1091055 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 728/728 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...