/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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:13:10,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:13:10,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:13:11,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:13:11,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:13:11,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:13:11,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:13:11,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:13:11,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:13:11,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:13:11,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:13:11,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:13:11,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:13:11,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:13:11,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:13:11,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:13:11,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:13:11,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:13:11,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:13:11,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:13:11,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:13:11,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:13:11,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:13:11,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:13:11,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:13:11,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:13:11,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:13:11,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:13:11,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:13:11,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:13:11,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:13:11,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:13:11,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:13:11,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:13:11,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:13:11,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:13:11,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:13:11,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:13:11,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:13:11,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:13:11,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:13:11,088 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 03:13:11,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:13:11,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:13:11,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:13:11,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:13:11,139 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:13:11,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:13:11,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:13:11,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:13:11,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:13:11,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:13:11,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:13:11,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:13:11,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:13:11,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:13:11,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:13:11,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:13:11,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:13:11,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:13:11,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:13:11,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:13:11,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:13:11,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:13:11,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:13:11,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:13:11,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:13:11,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:13:11,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:13:11,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:13:11,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:13:11,146 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:13:11,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:13:11,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:13:11,642 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:13:11,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:13:11,644 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:13:11,645 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 03:13:11,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b841ebf16/d753c4e76d7545bc986a60d4db60eb1e/FLAGd21bac8ae [2020-09-25 03:13:12,280 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:13:12,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 03:13:12,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b841ebf16/d753c4e76d7545bc986a60d4db60eb1e/FLAGd21bac8ae [2020-09-25 03:13:12,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b841ebf16/d753c4e76d7545bc986a60d4db60eb1e [2020-09-25 03:13:12,624 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:13:12,631 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:13:12,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:13:12,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:13:12,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:13:12,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:12" (1/1) ... [2020-09-25 03:13:12,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb9461a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:12, skipping insertion in model container [2020-09-25 03:13:12,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:12" (1/1) ... [2020-09-25 03:13:12,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:13:12,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:13:13,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:13:13,029 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:13:13,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:13:13,206 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:13:13,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13 WrapperNode [2020-09-25 03:13:13,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:13:13,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:13:13,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:13:13,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:13:13,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:13:13,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:13:13,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:13:13,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:13:13,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (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 03:13:13,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:13:13,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:13:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 03:13:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:13:13,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:13:13,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 03:13:13,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:13:13,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 03:13:13,357 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 03:13:13,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:13:13,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:13:13,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:13:13,587 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 03:13:14,212 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 03:13:14,213 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 03:13:14,231 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:13:14,232 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 03:13:14,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:14 BoogieIcfgContainer [2020-09-25 03:13:14,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:13:14,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:13:14,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:13:14,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:13:14,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:13:12" (1/3) ... [2020-09-25 03:13:14,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af4c24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:14, skipping insertion in model container [2020-09-25 03:13:14,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (2/3) ... [2020-09-25 03:13:14,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af4c24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:14, skipping insertion in model container [2020-09-25 03:13:14,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:14" (3/3) ... [2020-09-25 03:13:14,251 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_14.cil.c [2020-09-25 03:13:14,262 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:13:14,273 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:13:14,297 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:13:14,339 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:13:14,339 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:13:14,339 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:13:14,339 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:13:14,339 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:13:14,340 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:13:14,340 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:13:14,340 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:13:14,371 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-25 03:13:14,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 03:13:14,389 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:14,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:14,391 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:14,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:14,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1268045474, now seen corresponding path program 1 times [2020-09-25 03:13:14,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:14,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38800474] [2020-09-25 03:13:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:14,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:15,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:15,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:15,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:16,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 03:13:16,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:13:16,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1410 [2020-09-25 03:13:16,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:16,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:13:16,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 03:13:16,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 03:13:16,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:13:16,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:16,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:16,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:16,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:13:16,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:16,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:16,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:16,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:16,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:16,443 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 03:13:16,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38800474] [2020-09-25 03:13:16,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:16,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:13:16,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076942981] [2020-09-25 03:13:16,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:13:16,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:16,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:13:16,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:13:16,488 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 7 states. [2020-09-25 03:13:16,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:16,939 INFO L93 Difference]: Finished difference Result 798 states and 1053 transitions. [2020-09-25 03:13:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:13:16,941 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-09-25 03:13:16,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:16,964 INFO L225 Difference]: With dead ends: 798 [2020-09-25 03:13:16,965 INFO L226 Difference]: Without dead ends: 460 [2020-09-25 03:13:16,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:13:16,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-09-25 03:13:17,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 431. [2020-09-25 03:13:17,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-09-25 03:13:17,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 523 transitions. [2020-09-25 03:13:17,092 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 523 transitions. Word has length 158 [2020-09-25 03:13:17,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:17,093 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 523 transitions. [2020-09-25 03:13:17,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:13:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 523 transitions. [2020-09-25 03:13:17,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 03:13:17,097 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:17,098 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-09-25 03:13:17,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:13:17,098 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:17,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:17,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1852412155, now seen corresponding path program 1 times [2020-09-25 03:13:17,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:17,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130946710] [2020-09-25 03:13:17,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:17,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:17,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:17,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:17,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:17,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:17,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:18,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:18,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 03:13:18,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:13:18,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1212 [2020-09-25 03:13:18,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-09-25 03:13:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 03:13:18,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:18,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:18,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:18,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:18,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:18,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:18,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:18,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:18,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:18,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:18,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:18,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:18,429 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:18,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130946710] [2020-09-25 03:13:18,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:18,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:18,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015724767] [2020-09-25 03:13:18,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:18,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:18,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:18,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:18,434 INFO L87 Difference]: Start difference. First operand 431 states and 523 transitions. Second operand 3 states. [2020-09-25 03:13:18,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:18,456 INFO L93 Difference]: Finished difference Result 719 states and 899 transitions. [2020-09-25 03:13:18,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:18,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-25 03:13:18,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:18,461 INFO L225 Difference]: With dead ends: 719 [2020-09-25 03:13:18,461 INFO L226 Difference]: Without dead ends: 431 [2020-09-25 03:13:18,464 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 03:13:18,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-09-25 03:13:18,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2020-09-25 03:13:18,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-09-25 03:13:18,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 520 transitions. [2020-09-25 03:13:18,481 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 520 transitions. Word has length 180 [2020-09-25 03:13:18,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:18,482 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 520 transitions. [2020-09-25 03:13:18,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:18,483 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 520 transitions. [2020-09-25 03:13:18,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 03:13:18,486 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:18,486 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-09-25 03:13:18,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:13:18,487 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:18,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:18,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1111960536, now seen corresponding path program 1 times [2020-09-25 03:13:18,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:18,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953570566] [2020-09-25 03:13:18,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:18,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:18,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:18,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:18,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:18,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:19,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:19,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 03:13:19,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:13:19,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1131 [2020-09-25 03:13:19,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:19,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:19,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 03:13:19,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 03:13:19,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:19,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:19,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:19,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:19,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:19,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:19,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:19,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:19,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:19,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 03:13:19,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953570566] [2020-09-25 03:13:19,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:19,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:19,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996747448] [2020-09-25 03:13:19,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:19,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:19,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:19,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:19,720 INFO L87 Difference]: Start difference. First operand 431 states and 520 transitions. Second operand 3 states. [2020-09-25 03:13:19,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:19,746 INFO L93 Difference]: Finished difference Result 999 states and 1251 transitions. [2020-09-25 03:13:19,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:19,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 03:13:19,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:19,751 INFO L225 Difference]: With dead ends: 999 [2020-09-25 03:13:19,751 INFO L226 Difference]: Without dead ends: 711 [2020-09-25 03:13:19,752 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 03:13:19,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2020-09-25 03:13:19,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 696. [2020-09-25 03:13:19,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2020-09-25 03:13:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 859 transitions. [2020-09-25 03:13:19,776 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 859 transitions. Word has length 181 [2020-09-25 03:13:19,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:19,777 INFO L479 AbstractCegarLoop]: Abstraction has 696 states and 859 transitions. [2020-09-25 03:13:19,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:19,777 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 859 transitions. [2020-09-25 03:13:19,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 03:13:19,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:19,781 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-09-25 03:13:19,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:13:19,781 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:19,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:19,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1304716147, now seen corresponding path program 1 times [2020-09-25 03:13:19,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:19,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198076797] [2020-09-25 03:13:19,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:19,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:19,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:20,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:20,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:20,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:20,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:20,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-25 03:13:20,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:13:20,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1156 [2020-09-25 03:13:20,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:20,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:20,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-09-25 03:13:20,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 03:13:20,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:21,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:21,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:21,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:21,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:21,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:21,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:21,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:21,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:21,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:21,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:21,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:21,049 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 03:13:21,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198076797] [2020-09-25 03:13:21,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:21,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:21,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541230611] [2020-09-25 03:13:21,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:21,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:21,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:21,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:21,058 INFO L87 Difference]: Start difference. First operand 696 states and 859 transitions. Second operand 3 states. [2020-09-25 03:13:21,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:21,098 INFO L93 Difference]: Finished difference Result 1798 states and 2277 transitions. [2020-09-25 03:13:21,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:21,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-09-25 03:13:21,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:21,106 INFO L225 Difference]: With dead ends: 1798 [2020-09-25 03:13:21,106 INFO L226 Difference]: Without dead ends: 1246 [2020-09-25 03:13:21,108 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 03:13:21,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2020-09-25 03:13:21,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 965. [2020-09-25 03:13:21,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-09-25 03:13:21,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1205 transitions. [2020-09-25 03:13:21,142 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1205 transitions. Word has length 182 [2020-09-25 03:13:21,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:21,143 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1205 transitions. [2020-09-25 03:13:21,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:21,143 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1205 transitions. [2020-09-25 03:13:21,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 03:13:21,146 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:21,146 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-09-25 03:13:21,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:13:21,146 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:21,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:21,147 INFO L82 PathProgramCache]: Analyzing trace with hash -2092857871, now seen corresponding path program 1 times [2020-09-25 03:13:21,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:21,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778730613] [2020-09-25 03:13:21,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:21,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:21,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:21,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:21,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:21,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:21,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-25 03:13:21,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:13:21,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 780 [2020-09-25 03:13:21,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:21,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:21,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-09-25 03:13:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:13:21,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:21,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:21,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:21,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:21,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:21,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:21,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:21,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:21,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:21,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:21,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:21,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:13:22,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778730613] [2020-09-25 03:13:22,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:22,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:22,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439663337] [2020-09-25 03:13:22,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:22,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:22,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:22,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:22,019 INFO L87 Difference]: Start difference. First operand 965 states and 1205 transitions. Second operand 3 states. [2020-09-25 03:13:22,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:22,086 INFO L93 Difference]: Finished difference Result 1833 states and 2312 transitions. [2020-09-25 03:13:22,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:22,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-09-25 03:13:22,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:22,091 INFO L225 Difference]: With dead ends: 1833 [2020-09-25 03:13:22,092 INFO L226 Difference]: Without dead ends: 1013 [2020-09-25 03:13:22,093 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 03:13:22,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2020-09-25 03:13:22,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 1013. [2020-09-25 03:13:22,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-09-25 03:13:22,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1253 transitions. [2020-09-25 03:13:22,123 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1253 transitions. Word has length 182 [2020-09-25 03:13:22,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:22,123 INFO L479 AbstractCegarLoop]: Abstraction has 1013 states and 1253 transitions. [2020-09-25 03:13:22,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:22,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1253 transitions. [2020-09-25 03:13:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 03:13:22,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:22,127 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-09-25 03:13:22,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:13:22,127 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:22,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:22,128 INFO L82 PathProgramCache]: Analyzing trace with hash -2039964467, now seen corresponding path program 1 times [2020-09-25 03:13:22,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:22,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046799808] [2020-09-25 03:13:22,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:22,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:22,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:22,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:22,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:22,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 03:13:22,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:13:22,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-25 03:13:22,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:22,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-25 03:13:22,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:13:22,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:22,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:22,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:22,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:22,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:22,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:22,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:22,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:22,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:22,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:22,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:22,644 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:22,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046799808] [2020-09-25 03:13:22,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:22,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:22,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418278749] [2020-09-25 03:13:22,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:22,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:22,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:22,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:22,647 INFO L87 Difference]: Start difference. First operand 1013 states and 1253 transitions. Second operand 3 states. [2020-09-25 03:13:22,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:22,746 INFO L93 Difference]: Finished difference Result 1854 states and 2333 transitions. [2020-09-25 03:13:22,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:22,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-09-25 03:13:22,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:22,754 INFO L225 Difference]: With dead ends: 1854 [2020-09-25 03:13:22,754 INFO L226 Difference]: Without dead ends: 1034 [2020-09-25 03:13:22,756 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 03:13:22,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2020-09-25 03:13:22,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1031. [2020-09-25 03:13:22,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-09-25 03:13:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1267 transitions. [2020-09-25 03:13:22,802 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1267 transitions. Word has length 183 [2020-09-25 03:13:22,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:22,803 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1267 transitions. [2020-09-25 03:13:22,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1267 transitions. [2020-09-25 03:13:22,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 03:13:22,809 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:22,809 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-09-25 03:13:22,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:13:22,810 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:22,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:22,811 INFO L82 PathProgramCache]: Analyzing trace with hash -293442268, now seen corresponding path program 1 times [2020-09-25 03:13:22,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:22,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007257286] [2020-09-25 03:13:22,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:22,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:22,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:23,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:23,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:23,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:23,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:23,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:23,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 03:13:23,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:13:23,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 910 [2020-09-25 03:13:23,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:13:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-09-25 03:13:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 03:13:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:23,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:23,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:23,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:23,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:23,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:23,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:23,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:23,853 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:23,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007257286] [2020-09-25 03:13:23,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:23,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 03:13:23,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393438525] [2020-09-25 03:13:23,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 03:13:23,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:23,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 03:13:23,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 03:13:23,856 INFO L87 Difference]: Start difference. First operand 1031 states and 1267 transitions. Second operand 4 states. [2020-09-25 03:13:23,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:23,953 INFO L93 Difference]: Finished difference Result 3586 states and 4514 transitions. [2020-09-25 03:13:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:13:23,954 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 187 [2020-09-25 03:13:23,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:23,967 INFO L225 Difference]: With dead ends: 3586 [2020-09-25 03:13:23,968 INFO L226 Difference]: Without dead ends: 2748 [2020-09-25 03:13:23,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 03:13:23,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2020-09-25 03:13:24,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 1908. [2020-09-25 03:13:24,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1908 states. [2020-09-25 03:13:24,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 2364 transitions. [2020-09-25 03:13:24,049 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 2364 transitions. Word has length 187 [2020-09-25 03:13:24,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:24,049 INFO L479 AbstractCegarLoop]: Abstraction has 1908 states and 2364 transitions. [2020-09-25 03:13:24,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 03:13:24,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 2364 transitions. [2020-09-25 03:13:24,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 03:13:24,057 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:24,057 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-09-25 03:13:24,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:13:24,058 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:24,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:24,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1498778359, now seen corresponding path program 1 times [2020-09-25 03:13:24,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:24,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509432007] [2020-09-25 03:13:24,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:24,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 03:13:24,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:13:24,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-09-25 03:13:24,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:13:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-25 03:13:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:13:24,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:24,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:24,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:24,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:24,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:24,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:24,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:24,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:24,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:24,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:24,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:24,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:24,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509432007] [2020-09-25 03:13:24,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:24,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 03:13:24,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863458717] [2020-09-25 03:13:24,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 03:13:24,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:24,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 03:13:24,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 03:13:24,675 INFO L87 Difference]: Start difference. First operand 1908 states and 2364 transitions. Second operand 4 states. [2020-09-25 03:13:25,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:25,071 INFO L93 Difference]: Finished difference Result 4596 states and 5863 transitions. [2020-09-25 03:13:25,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:13:25,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 187 [2020-09-25 03:13:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:25,090 INFO L225 Difference]: With dead ends: 4596 [2020-09-25 03:13:25,090 INFO L226 Difference]: Without dead ends: 2901 [2020-09-25 03:13:25,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 03:13:25,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2020-09-25 03:13:25,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 2590. [2020-09-25 03:13:25,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2590 states. [2020-09-25 03:13:25,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 3183 transitions. [2020-09-25 03:13:25,247 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 3183 transitions. Word has length 187 [2020-09-25 03:13:25,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:25,248 INFO L479 AbstractCegarLoop]: Abstraction has 2590 states and 3183 transitions. [2020-09-25 03:13:25,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 03:13:25,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 3183 transitions. [2020-09-25 03:13:25,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 03:13:25,253 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:25,253 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-09-25 03:13:25,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:13:25,254 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:25,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:25,254 INFO L82 PathProgramCache]: Analyzing trace with hash -425975215, now seen corresponding path program 1 times [2020-09-25 03:13:25,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:25,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640697303] [2020-09-25 03:13:25,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:25,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:25,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:25,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:25,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 03:13:25,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:13:25,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 03:13:25,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 03:13:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:13:25,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:25,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:25,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:25,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:25,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:25,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:25,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:25,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:25,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:25,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:25,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:25,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:25,673 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:25,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640697303] [2020-09-25 03:13:25,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:25,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:25,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860231924] [2020-09-25 03:13:25,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:25,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:25,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:25,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:25,680 INFO L87 Difference]: Start difference. First operand 2590 states and 3183 transitions. Second operand 3 states. [2020-09-25 03:13:25,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:25,981 INFO L93 Difference]: Finished difference Result 5476 states and 6921 transitions. [2020-09-25 03:13:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:25,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-09-25 03:13:25,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:25,996 INFO L225 Difference]: With dead ends: 5476 [2020-09-25 03:13:25,996 INFO L226 Difference]: Without dead ends: 3135 [2020-09-25 03:13:26,001 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 03:13:26,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3135 states. [2020-09-25 03:13:26,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 2807. [2020-09-25 03:13:26,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2807 states. [2020-09-25 03:13:26,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 3502 transitions. [2020-09-25 03:13:26,100 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 3502 transitions. Word has length 189 [2020-09-25 03:13:26,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:26,101 INFO L479 AbstractCegarLoop]: Abstraction has 2807 states and 3502 transitions. [2020-09-25 03:13:26,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:26,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 3502 transitions. [2020-09-25 03:13:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 03:13:26,105 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:26,106 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:26,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:13:26,106 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:26,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:26,107 INFO L82 PathProgramCache]: Analyzing trace with hash 340252365, now seen corresponding path program 1 times [2020-09-25 03:13:26,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:26,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278403475] [2020-09-25 03:13:26,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:26,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:26,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:26,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:26,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:26,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:26,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:26,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 03:13:26,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:13:26,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805 [2020-09-25 03:13:26,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:26,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:13:26,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-25 03:13:26,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 03:13:26,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:27,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:27,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:27,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:27,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:27,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:27,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:27,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:27,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:27,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:27,065 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:27,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278403475] [2020-09-25 03:13:27,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:27,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:13:27,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799158762] [2020-09-25 03:13:27,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:13:27,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:27,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:13:27,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:13:27,069 INFO L87 Difference]: Start difference. First operand 2807 states and 3502 transitions. Second operand 5 states. [2020-09-25 03:13:27,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:27,742 INFO L93 Difference]: Finished difference Result 8896 states and 11286 transitions. [2020-09-25 03:13:27,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 03:13:27,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2020-09-25 03:13:27,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:27,769 INFO L225 Difference]: With dead ends: 8896 [2020-09-25 03:13:27,769 INFO L226 Difference]: Without dead ends: 6338 [2020-09-25 03:13:27,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:13:27,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6338 states. [2020-09-25 03:13:27,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6338 to 3775. [2020-09-25 03:13:27,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3775 states. [2020-09-25 03:13:27,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3775 states to 3775 states and 4808 transitions. [2020-09-25 03:13:27,935 INFO L78 Accepts]: Start accepts. Automaton has 3775 states and 4808 transitions. Word has length 191 [2020-09-25 03:13:27,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:27,936 INFO L479 AbstractCegarLoop]: Abstraction has 3775 states and 4808 transitions. [2020-09-25 03:13:27,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:13:27,936 INFO L276 IsEmpty]: Start isEmpty. Operand 3775 states and 4808 transitions. [2020-09-25 03:13:27,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 03:13:27,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:27,942 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:27,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 03:13:27,942 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:27,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:27,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1187027627, now seen corresponding path program 1 times [2020-09-25 03:13:27,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:27,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037792747] [2020-09-25 03:13:27,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:27,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 03:13:28,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:13:28,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-09-25 03:13:28,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:13:28,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 03:13:28,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 03:13:28,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:28,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:28,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:28,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:28,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:28,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:28,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:28,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:28,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:28,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:28,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037792747] [2020-09-25 03:13:28,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:28,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 03:13:28,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016283801] [2020-09-25 03:13:28,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 03:13:28,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:28,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 03:13:28,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 03:13:28,464 INFO L87 Difference]: Start difference. First operand 3775 states and 4808 transitions. Second operand 4 states. [2020-09-25 03:13:28,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:28,924 INFO L93 Difference]: Finished difference Result 8821 states and 11281 transitions. [2020-09-25 03:13:28,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:13:28,925 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2020-09-25 03:13:28,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:28,951 INFO L225 Difference]: With dead ends: 8821 [2020-09-25 03:13:28,951 INFO L226 Difference]: Without dead ends: 5225 [2020-09-25 03:13:28,960 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 03:13:28,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5225 states. [2020-09-25 03:13:29,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5225 to 3789. [2020-09-25 03:13:29,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3789 states. [2020-09-25 03:13:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3789 states to 3789 states and 4780 transitions. [2020-09-25 03:13:29,113 INFO L78 Accepts]: Start accepts. Automaton has 3789 states and 4780 transitions. Word has length 193 [2020-09-25 03:13:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:29,114 INFO L479 AbstractCegarLoop]: Abstraction has 3789 states and 4780 transitions. [2020-09-25 03:13:29,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 03:13:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 3789 states and 4780 transitions. [2020-09-25 03:13:29,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 03:13:29,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:29,118 INFO L422 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:29,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 03:13:29,118 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:29,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:29,118 INFO L82 PathProgramCache]: Analyzing trace with hash -912264382, now seen corresponding path program 1 times [2020-09-25 03:13:29,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:29,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351748618] [2020-09-25 03:13:29,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-25 03:13:29,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 03:13:29,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 03:13:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 03:13:29,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:29,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:29,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:29,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:29,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:29,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:29,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:13:29,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:29,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:29,314 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:29,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351748618] [2020-09-25 03:13:29,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:29,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:29,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388751326] [2020-09-25 03:13:29,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:29,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:29,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:29,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:29,316 INFO L87 Difference]: Start difference. First operand 3789 states and 4780 transitions. Second operand 3 states. [2020-09-25 03:13:29,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:29,421 INFO L93 Difference]: Finished difference Result 7603 states and 9611 transitions. [2020-09-25 03:13:29,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:29,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-09-25 03:13:29,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:29,440 INFO L225 Difference]: With dead ends: 7603 [2020-09-25 03:13:29,440 INFO L226 Difference]: Without dead ends: 4083 [2020-09-25 03:13:29,447 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 03:13:29,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2020-09-25 03:13:29,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 4081. [2020-09-25 03:13:29,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4081 states. [2020-09-25 03:13:29,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4081 states to 4081 states and 5103 transitions. [2020-09-25 03:13:29,545 INFO L78 Accepts]: Start accepts. Automaton has 4081 states and 5103 transitions. Word has length 200 [2020-09-25 03:13:29,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:29,546 INFO L479 AbstractCegarLoop]: Abstraction has 4081 states and 5103 transitions. [2020-09-25 03:13:29,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:29,546 INFO L276 IsEmpty]: Start isEmpty. Operand 4081 states and 5103 transitions. [2020-09-25 03:13:29,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 03:13:29,549 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:29,549 INFO L422 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:29,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 03:13:29,550 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:29,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:29,550 INFO L82 PathProgramCache]: Analyzing trace with hash -690870181, now seen corresponding path program 1 times [2020-09-25 03:13:29,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:29,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075312825] [2020-09-25 03:13:29,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:13:29,576 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:13:29,576 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:13:29,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 03:13:29,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:13:29 BoogieIcfgContainer [2020-09-25 03:13:29,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:13:29,614 INFO L168 Benchmark]: Toolchain (without parser) took 16986.48 ms. Allocated memory was 138.4 MB in the beginning and 529.5 MB in the end (delta: 391.1 MB). Free memory was 100.3 MB in the beginning and 194.9 MB in the end (delta: -94.6 MB). Peak memory consumption was 296.5 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:29,615 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 03:13:29,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.10 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 99.6 MB in the beginning and 175.6 MB in the end (delta: -76.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:29,616 INFO L168 Benchmark]: Boogie Preprocessor took 63.08 ms. Allocated memory is still 200.8 MB. Free memory was 175.6 MB in the beginning and 172.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:29,617 INFO L168 Benchmark]: RCFGBuilder took 969.31 ms. Allocated memory is still 200.8 MB. Free memory was 172.7 MB in the beginning and 101.9 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:29,618 INFO L168 Benchmark]: TraceAbstraction took 15368.20 ms. Allocated memory was 200.8 MB in the beginning and 529.5 MB in the end (delta: 328.7 MB). Free memory was 101.2 MB in the beginning and 194.9 MB in the end (delta: -93.7 MB). Peak memory consumption was 235.0 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:29,621 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 138.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 576.10 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 99.6 MB in the beginning and 175.6 MB in the end (delta: -76.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.08 ms. Allocated memory is still 200.8 MB. Free memory was 175.6 MB in the beginning and 172.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 969.31 ms. Allocated memory is still 200.8 MB. Free memory was 172.7 MB in the beginning and 101.9 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15368.20 ms. Allocated memory was 200.8 MB in the beginning and 529.5 MB in the end (delta: 328.7 MB). Free memory was 101.2 MB in the beginning and 194.9 MB in the end (delta: -93.7 MB). Peak memory consumption was 235.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 640]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L645] int s ; [L646] int tmp ; [L650] s = 8464 [L651] CALL ssl3_accept(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L72] s__s3__tmp__reuse_message = 0 [L73] s__state = initial_state [L74] blastFlag = 0 [L75] tmp = __VERIFIER_nondet_int() [L76] Time = tmp [L77] cb = 0 [L78] ret = -1 [L79] skip = 0 [L80] got_new_session = 0 [L81] COND FALSE !(s__info_callback != 0) [L84] COND FALSE !(s__ctx__info_callback != 0) [L88] s__in_handshake ++ [L89] COND TRUE tmp___1 + 12288 [L90] COND TRUE tmp___2 + 16384 [L94] COND FALSE !(s__cert == 0) [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND TRUE s__state == 8464 [L271] s__shutdown = 0 [L272] ret = __VERIFIER_nondet_int() [L273] COND TRUE blastFlag == 0 [L274] blastFlag = 1 [L276] COND FALSE !(ret <= 0) [L279] got_new_session = 1 [L280] s__state = 8496 [L281] s__init_num = 0 [L602] COND TRUE ! s__s3__tmp__reuse_message [L603] COND TRUE ! skip [L604] COND TRUE tmp___1 != -12288 [L605] COND TRUE s__state != 8656 [L606] COND TRUE tmp___2 != -16384 [L607] COND FALSE !(state == 8496) [L614] COND FALSE !(\read(s__debug)) [L620] COND FALSE !(cb != 0) [L629] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND FALSE !(s__state == 8464) [L128] COND FALSE !(s__state == 8465) [L131] COND FALSE !(s__state == 8466) [L134] COND TRUE s__state == 8496 [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 1 [L287] blastFlag = 2 [L289] COND FALSE !(ret <= 0) [L292] COND FALSE !(\read(s__hit)) [L295] s__state = 8512 [L297] s__init_num = 0 [L602] COND TRUE ! s__s3__tmp__reuse_message [L603] COND TRUE ! skip [L604] COND TRUE tmp___1 != -12288 [L605] COND TRUE s__state != 8656 [L606] COND TRUE tmp___2 != -16384 [L607] COND TRUE state == 8496 [L640] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 426 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.2s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7083 SDtfs, 5068 SDslu, 8165 SDs, 0 SdLazy, 1245 SolverSat, 163 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4081occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 5808 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 2414 NumberOfCodeBlocks, 2414 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2201 ConstructedInterpolants, 0 QuantifiedInterpolants, 645879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 150/150 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...