/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:58:23,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:58:23,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:58:23,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:58:23,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:58:23,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:58:23,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:58:23,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:58:23,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:58:23,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:58:23,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:58:23,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:58:23,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:58:23,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:58:23,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:58:24,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:58:24,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:58:24,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:58:24,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:58:24,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:58:24,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:58:24,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:58:24,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:58:24,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:58:24,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:58:24,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:58:24,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:58:24,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:58:24,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:58:24,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:58:24,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:58:24,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:58:24,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:58:24,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:58:24,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:58:24,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:58:24,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:58:24,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:58:24,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:58:24,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:58:24,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:58:24,039 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 09:58:24,088 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:58:24,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:58:24,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:58:24,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:58:24,091 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:58:24,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:58:24,092 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:58:24,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:58:24,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:58:24,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:58:24,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:58:24,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:58:24,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:58:24,095 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:58:24,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:58:24,095 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:58:24,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:58:24,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:58:24,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:58:24,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:58:24,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:58:24,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:58:24,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:58:24,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:58:24,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:58:24,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:58:24,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:58:24,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:58:24,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:58:24,098 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:58:24,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:58:24,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:58:24,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:58:24,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:58:24,632 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:58:24,633 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 09:58:24,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0865ccb09/878120b331364dd99f184c0827280f8b/FLAGe621aa4bc [2020-09-25 09:58:25,303 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:58:25,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 09:58:25,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0865ccb09/878120b331364dd99f184c0827280f8b/FLAGe621aa4bc [2020-09-25 09:58:25,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0865ccb09/878120b331364dd99f184c0827280f8b [2020-09-25 09:58:25,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:58:25,652 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:58:25,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:25,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:58:25,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:58:25,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:25" (1/1) ... [2020-09-25 09:58:25,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373efb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:25, skipping insertion in model container [2020-09-25 09:58:25,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:25" (1/1) ... [2020-09-25 09:58:25,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:58:25,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:58:26,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:26,041 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:58:26,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:26,211 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:58:26,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:26 WrapperNode [2020-09-25 09:58:26,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:26,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:58:26,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:58:26,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:58:26,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:26" (1/1) ... [2020-09-25 09:58:26,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:26" (1/1) ... [2020-09-25 09:58:26,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:26" (1/1) ... [2020-09-25 09:58:26,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:26" (1/1) ... [2020-09-25 09:58:26,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:26" (1/1) ... [2020-09-25 09:58:26,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:26" (1/1) ... [2020-09-25 09:58:26,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:26" (1/1) ... [2020-09-25 09:58:26,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:58:26,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:58:26,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:58:26,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:58:26,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:26" (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 09:58:26,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:58:26,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:58:26,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 09:58:26,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:58:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:58:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:58:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 09:58:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 09:58:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:58:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:58:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:58:26,530 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 09:58:27,217 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-09-25 09:58:27,218 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-09-25 09:58:27,244 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:58:27,244 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 09:58:27,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:27 BoogieIcfgContainer [2020-09-25 09:58:27,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:58:27,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:58:27,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:58:27,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:58:27,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:58:25" (1/3) ... [2020-09-25 09:58:27,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5838bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:27, skipping insertion in model container [2020-09-25 09:58:27,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:26" (2/3) ... [2020-09-25 09:58:27,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5838bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:27, skipping insertion in model container [2020-09-25 09:58:27,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:27" (3/3) ... [2020-09-25 09:58:27,264 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-09-25 09:58:27,276 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:58:27,287 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:58:27,311 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:58:27,345 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:58:27,345 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:58:27,345 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:58:27,345 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:58:27,346 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:58:27,346 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:58:27,346 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:58:27,346 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:58:27,376 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 09:58:27,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:58:27,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:27,394 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] [2020-09-25 09:58:27,395 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:27,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:27,402 INFO L82 PathProgramCache]: Analyzing trace with hash 663725490, now seen corresponding path program 1 times [2020-09-25 09:58:27,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:27,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424440675] [2020-09-25 09:58:27,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:27,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:27,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:28,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:28,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 09:58:28,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:28,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-09-25 09:58:28,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:28,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:28,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:28,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 09:58:28,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 09:58:28,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:58:28,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:28,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:28,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:28,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:28,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:28,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:28,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:28,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:28,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:28,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:28,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:28,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:28,252 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 09:58:28,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424440675] [2020-09-25 09:58:28,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:28,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 09:58:28,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974163477] [2020-09-25 09:58:28,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 09:58:28,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:28,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 09:58:28,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 09:58:28,288 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-25 09:58:28,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:28,716 INFO L93 Difference]: Finished difference Result 635 states and 851 transitions. [2020-09-25 09:58:28,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 09:58:28,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 09:58:28,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:28,756 INFO L225 Difference]: With dead ends: 635 [2020-09-25 09:58:28,757 INFO L226 Difference]: Without dead ends: 334 [2020-09-25 09:58:28,776 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 09:58:28,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-25 09:58:28,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 320. [2020-09-25 09:58:28,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-09-25 09:58:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 380 transitions. [2020-09-25 09:58:28,904 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 380 transitions. Word has length 142 [2020-09-25 09:58:28,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:28,909 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 380 transitions. [2020-09-25 09:58:28,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 09:58:28,909 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 380 transitions. [2020-09-25 09:58:28,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 09:58:28,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:28,922 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 09:58:28,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:58:28,923 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:28,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:28,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1249677314, now seen corresponding path program 1 times [2020-09-25 09:58:28,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:28,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103010549] [2020-09-25 09:58:28,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:29,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:29,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:29,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:29,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:29,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:29,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 09:58:29,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:58:29,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-09-25 09:58:29,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:29,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 09:58:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:58:29,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:29,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:29,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:29,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:29,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:29,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:29,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:29,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:29,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:29,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:29,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:29,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:58:29,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103010549] [2020-09-25 09:58:29,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:29,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 09:58:29,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598663358] [2020-09-25 09:58:29,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 09:58:29,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:29,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 09:58:29,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 09:58:29,597 INFO L87 Difference]: Start difference. First operand 320 states and 380 transitions. Second operand 3 states. [2020-09-25 09:58:29,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:29,879 INFO L93 Difference]: Finished difference Result 578 states and 730 transitions. [2020-09-25 09:58:29,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 09:58:29,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-09-25 09:58:29,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:29,885 INFO L225 Difference]: With dead ends: 578 [2020-09-25 09:58:29,885 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 09:58:29,887 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 09:58:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 09:58:29,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 364. [2020-09-25 09:58:29,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-09-25 09:58:29,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 432 transitions. [2020-09-25 09:58:29,905 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 432 transitions. Word has length 158 [2020-09-25 09:58:29,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:29,905 INFO L479 AbstractCegarLoop]: Abstraction has 364 states and 432 transitions. [2020-09-25 09:58:29,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 09:58:29,906 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 432 transitions. [2020-09-25 09:58:29,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 09:58:29,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:29,908 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 09:58:29,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:58:29,909 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:29,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:29,910 INFO L82 PathProgramCache]: Analyzing trace with hash -288801966, now seen corresponding path program 1 times [2020-09-25 09:58:29,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:29,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135182676] [2020-09-25 09:58:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:29,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:30,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:30,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:30,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:30,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:30,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 09:58:30,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:58:30,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 796 [2020-09-25 09:58:30,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:30,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:30,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:30,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 09:58:30,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:58:30,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:30,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:30,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:30,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:30,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:30,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:30,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:30,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:30,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:30,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:30,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:30,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:30,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:58:30,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135182676] [2020-09-25 09:58:30,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:30,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 09:58:30,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335698491] [2020-09-25 09:58:30,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 09:58:30,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:30,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 09:58:30,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 09:58:30,815 INFO L87 Difference]: Start difference. First operand 364 states and 432 transitions. Second operand 4 states. [2020-09-25 09:58:31,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:31,306 INFO L93 Difference]: Finished difference Result 912 states and 1139 transitions. [2020-09-25 09:58:31,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:58:31,307 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2020-09-25 09:58:31,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:31,312 INFO L225 Difference]: With dead ends: 912 [2020-09-25 09:58:31,313 INFO L226 Difference]: Without dead ends: 679 [2020-09-25 09:58:31,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:58:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-09-25 09:58:31,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 367. [2020-09-25 09:58:31,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-09-25 09:58:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 435 transitions. [2020-09-25 09:58:31,332 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 435 transitions. Word has length 165 [2020-09-25 09:58:31,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:31,333 INFO L479 AbstractCegarLoop]: Abstraction has 367 states and 435 transitions. [2020-09-25 09:58:31,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 09:58:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 435 transitions. [2020-09-25 09:58:31,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 09:58:31,336 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:31,336 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:58:31,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:58:31,337 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:31,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:31,337 INFO L82 PathProgramCache]: Analyzing trace with hash -854962305, now seen corresponding path program 1 times [2020-09-25 09:58:31,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:31,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249204125] [2020-09-25 09:58:31,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:31,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:31,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:31,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:31,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:31,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:31,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:31,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 09:58:31,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:58:31,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 605 [2020-09-25 09:58:31,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:31,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-25 09:58:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 09:58:31,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:32,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:32,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:32,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:32,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:32,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:32,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:32,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:32,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:32,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:32,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:32,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:32,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 09:58:32,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249204125] [2020-09-25 09:58:32,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:32,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 09:58:32,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122894556] [2020-09-25 09:58:32,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 09:58:32,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:32,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 09:58:32,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 09:58:32,080 INFO L87 Difference]: Start difference. First operand 367 states and 435 transitions. Second operand 3 states. [2020-09-25 09:58:32,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:32,136 INFO L93 Difference]: Finished difference Result 826 states and 1015 transitions. [2020-09-25 09:58:32,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 09:58:32,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-09-25 09:58:32,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:32,141 INFO L225 Difference]: With dead ends: 826 [2020-09-25 09:58:32,141 INFO L226 Difference]: Without dead ends: 590 [2020-09-25 09:58:32,142 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 09:58:32,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2020-09-25 09:58:32,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 588. [2020-09-25 09:58:32,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2020-09-25 09:58:32,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 711 transitions. [2020-09-25 09:58:32,169 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 711 transitions. Word has length 178 [2020-09-25 09:58:32,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:32,170 INFO L479 AbstractCegarLoop]: Abstraction has 588 states and 711 transitions. [2020-09-25 09:58:32,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 09:58:32,170 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 711 transitions. [2020-09-25 09:58:32,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 09:58:32,172 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:32,172 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:58:32,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:58:32,173 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:32,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:32,173 INFO L82 PathProgramCache]: Analyzing trace with hash -958022070, now seen corresponding path program 1 times [2020-09-25 09:58:32,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:32,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731242598] [2020-09-25 09:58:32,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:32,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:32,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:32,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:32,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:32,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:32,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 09:58:32,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:58:32,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-09-25 09:58:32,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:32,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 09:58:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:58:32,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:32,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:32,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:32,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:32,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:32,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:32,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:58:32,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:32,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:32,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:32,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:32,679 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 09:58:32,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731242598] [2020-09-25 09:58:32,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:32,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 09:58:32,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694509666] [2020-09-25 09:58:32,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 09:58:32,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:32,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 09:58:32,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 09:58:32,682 INFO L87 Difference]: Start difference. First operand 588 states and 711 transitions. Second operand 3 states. [2020-09-25 09:58:32,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:32,951 INFO L93 Difference]: Finished difference Result 983 states and 1215 transitions. [2020-09-25 09:58:32,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 09:58:32,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-09-25 09:58:32,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:32,961 INFO L225 Difference]: With dead ends: 983 [2020-09-25 09:58:32,961 INFO L226 Difference]: Without dead ends: 747 [2020-09-25 09:58:32,963 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 09:58:32,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-09-25 09:58:32,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 608. [2020-09-25 09:58:32,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-09-25 09:58:32,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 741 transitions. [2020-09-25 09:58:32,991 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 741 transitions. Word has length 179 [2020-09-25 09:58:32,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:32,992 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 741 transitions. [2020-09-25 09:58:32,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 09:58:32,992 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 741 transitions. [2020-09-25 09:58:32,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 09:58:32,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:32,998 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:58:32,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:58:32,999 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:32,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:32,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1571585926, now seen corresponding path program 1 times [2020-09-25 09:58:33,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:33,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694201483] [2020-09-25 09:58:33,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:33,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:33,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:33,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:33,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:33,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:34,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:34,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 09:58:34,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:58:34,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1227 [2020-09-25 09:58:34,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:34,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:34,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:34,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 09:58:34,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 09:58:34,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:34,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:34,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:34,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:34,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:34,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:34,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:34,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:34,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:34,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:34,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:34,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:34,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 09:58:34,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694201483] [2020-09-25 09:58:34,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:34,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 09:58:34,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406727973] [2020-09-25 09:58:34,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 09:58:34,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:34,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 09:58:34,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 09:58:34,454 INFO L87 Difference]: Start difference. First operand 608 states and 741 transitions. Second operand 4 states. [2020-09-25 09:58:34,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:34,917 INFO L93 Difference]: Finished difference Result 1463 states and 1836 transitions. [2020-09-25 09:58:34,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:58:34,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2020-09-25 09:58:34,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:34,924 INFO L225 Difference]: With dead ends: 1463 [2020-09-25 09:58:34,925 INFO L226 Difference]: Without dead ends: 1207 [2020-09-25 09:58:34,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:58:34,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2020-09-25 09:58:34,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 611. [2020-09-25 09:58:34,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-09-25 09:58:34,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 744 transitions. [2020-09-25 09:58:34,952 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 744 transitions. Word has length 186 [2020-09-25 09:58:34,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:34,953 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 744 transitions. [2020-09-25 09:58:34,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 09:58:34,953 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 744 transitions. [2020-09-25 09:58:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-25 09:58:34,956 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:34,956 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:58:34,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 09:58:34,957 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:34,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:34,957 INFO L82 PathProgramCache]: Analyzing trace with hash 348829834, now seen corresponding path program 1 times [2020-09-25 09:58:34,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:34,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549355721] [2020-09-25 09:58:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:35,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:35,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:35,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:35,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:35,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:35,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 09:58:35,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:58:35,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 630 [2020-09-25 09:58:35,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:35,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 09:58:35,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 09:58:35,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:35,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:35,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:35,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:35,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:35,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:35,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:58:35,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:35,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:35,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:35,681 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:58:35,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549355721] [2020-09-25 09:58:35,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:35,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 09:58:35,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031938295] [2020-09-25 09:58:35,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 09:58:35,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:35,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 09:58:35,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 09:58:35,685 INFO L87 Difference]: Start difference. First operand 611 states and 744 transitions. Second operand 3 states. [2020-09-25 09:58:35,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:35,913 INFO L93 Difference]: Finished difference Result 1312 states and 1668 transitions. [2020-09-25 09:58:35,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 09:58:35,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2020-09-25 09:58:35,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:35,921 INFO L225 Difference]: With dead ends: 1312 [2020-09-25 09:58:35,921 INFO L226 Difference]: Without dead ends: 780 [2020-09-25 09:58:35,925 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 09:58:35,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-09-25 09:58:35,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 744. [2020-09-25 09:58:35,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-09-25 09:58:35,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 955 transitions. [2020-09-25 09:58:35,962 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 955 transitions. Word has length 196 [2020-09-25 09:58:35,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:35,962 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 955 transitions. [2020-09-25 09:58:35,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 09:58:35,962 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 955 transitions. [2020-09-25 09:58:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 09:58:35,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:35,967 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:58:35,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 09:58:35,968 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:35,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:35,968 INFO L82 PathProgramCache]: Analyzing trace with hash -782218630, now seen corresponding path program 1 times [2020-09-25 09:58:35,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:35,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912045803] [2020-09-25 09:58:35,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:36,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:36,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:36,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:36,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 09:58:36,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:36,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 09:58:36,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:36,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 09:58:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 09:58:36,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:36,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:36,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:36,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:36,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:36,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:36,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:36,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:36,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:36,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:36,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:36,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:36,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:36,360 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-25 09:58:36,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912045803] [2020-09-25 09:58:36,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:36,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 09:58:36,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089056479] [2020-09-25 09:58:36,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 09:58:36,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:36,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 09:58:36,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 09:58:36,363 INFO L87 Difference]: Start difference. First operand 744 states and 955 transitions. Second operand 3 states. [2020-09-25 09:58:36,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:36,601 INFO L93 Difference]: Finished difference Result 1459 states and 1884 transitions. [2020-09-25 09:58:36,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 09:58:36,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-09-25 09:58:36,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:36,606 INFO L225 Difference]: With dead ends: 1459 [2020-09-25 09:58:36,607 INFO L226 Difference]: Without dead ends: 843 [2020-09-25 09:58:36,608 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 09:58:36,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2020-09-25 09:58:36,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 741. [2020-09-25 09:58:36,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-09-25 09:58:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 946 transitions. [2020-09-25 09:58:36,633 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 946 transitions. Word has length 201 [2020-09-25 09:58:36,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:36,633 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 946 transitions. [2020-09-25 09:58:36,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 09:58:36,634 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 946 transitions. [2020-09-25 09:58:36,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 09:58:36,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:36,637 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:58:36,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 09:58:36,637 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:36,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:36,638 INFO L82 PathProgramCache]: Analyzing trace with hash 192610461, now seen corresponding path program 1 times [2020-09-25 09:58:36,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:36,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074959932] [2020-09-25 09:58:36,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:58:36,666 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:58:36,666 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:58:36,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 09:58:36,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:58:36 BoogieIcfgContainer [2020-09-25 09:58:36,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:58:36,705 INFO L168 Benchmark]: Toolchain (without parser) took 11055.47 ms. Allocated memory was 147.8 MB in the beginning and 345.5 MB in the end (delta: 197.7 MB). Free memory was 103.9 MB in the beginning and 271.7 MB in the end (delta: -167.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2020-09-25 09:58:36,706 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 09:58:36,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.18 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 103.3 MB in the beginning and 180.0 MB in the end (delta: -76.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-25 09:58:36,708 INFO L168 Benchmark]: Boogie Preprocessor took 65.73 ms. Allocated memory is still 204.5 MB. Free memory was 180.0 MB in the beginning and 177.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 09:58:36,709 INFO L168 Benchmark]: RCFGBuilder took 974.05 ms. Allocated memory is still 204.5 MB. Free memory was 177.4 MB in the beginning and 116.7 MB in the end (delta: 60.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 7.1 GB. [2020-09-25 09:58:36,709 INFO L168 Benchmark]: TraceAbstraction took 9447.11 ms. Allocated memory was 204.5 MB in the beginning and 345.5 MB in the end (delta: 141.0 MB). Free memory was 116.7 MB in the beginning and 271.7 MB in the end (delta: -155.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 09:58:36,713 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 559.18 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 103.3 MB in the beginning and 180.0 MB in the end (delta: -76.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.73 ms. Allocated memory is still 204.5 MB. Free memory was 180.0 MB in the beginning and 177.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 974.05 ms. Allocated memory is still 204.5 MB. Free memory was 177.4 MB in the beginning and 116.7 MB in the end (delta: 60.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9447.11 ms. Allocated memory was 204.5 MB in the beginning and 345.5 MB in the end (delta: 141.0 MB). Free memory was 116.7 MB in the beginning and 271.7 MB in the end (delta: -155.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 614]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 301. Possible FailurePath: [L623] int __retres1 ; [L627] CALL ssl3_connect() [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] unsigned int s__version = __VERIFIER_nondet_uint(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L26] unsigned int s__ctx__stats__sess_connect ; [L27] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L52] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y ; [L63] int ag_Z ; [L64] int __retres60 ; [L67] s__state = 12292 [L68] blastFlag = 0 [L69] tmp = __VERIFIER_nondet_int() [L70] cb = 0 [L71] ret = -1 [L72] skip = 0 [L73] tmp___0 = 0 [L74] COND TRUE s__info_callback != 0 [L75] cb = s__info_callback [L83] s__in_handshake = s__in_handshake + 1 [L84] COND FALSE !(tmp___1 + 12288) [L93] COND TRUE \read(s__hit) [L94] ag_Y = 208 [L99] COND TRUE 1 [L101] state = s__state [L102] COND TRUE s__state == 12292 [L205] s__new_session = 1 [L206] s__state = 4096 [L207] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L212] s__server = 0 [L213] COND TRUE cb != 0 [L218] COND FALSE !(s__version + 65280 != 768) [L224] s__type = 4096 [L225] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L243] COND FALSE !(! tmp___4) [L249] COND FALSE !(! tmp___5) [L255] s__state = 4368 [L256] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L257] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND TRUE s__state == 4368 [L261] s__shutdown = 0 [L262] ret = __VERIFIER_nondet_int() [L263] COND TRUE blastFlag == 0 [L264] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] ag_X = s__state - 32 [L275] s__init_num = 0 [L276] COND FALSE !((unsigned long )s__bbio != (unsigned long )s__wbio) [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND TRUE s__state == 4384 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L294] COND FALSE !(ret <= 0) [L299] s__state = ag_X [L300] COND TRUE \read(s__hit) [L301] s__state = s__state | ag_Y [L305] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND FALSE !(s__state == 4384) [L126] COND FALSE !(s__state == 4385) [L129] COND FALSE !(s__state == 4400) [L132] COND FALSE !(s__state == 4401) [L135] COND FALSE !(s__state == 4416) [L138] COND FALSE !(s__state == 4417) [L141] COND TRUE s__state == 4432 [L351] ret = __VERIFIER_nondet_int() [L352] COND TRUE blastFlag <= 5 [L614] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 350 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.3s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3396 SDtfs, 1592 SDslu, 2912 SDs, 0 SdLazy, 1192 SolverSat, 273 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=744occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1226 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 1608 NumberOfCodeBlocks, 1608 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1397 ConstructedInterpolants, 0 QuantifiedInterpolants, 325009 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 132/132 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...