/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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 [2020-09-24 19:22:28,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:22:28,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:22:28,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:22:28,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:22:28,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:22:28,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:22:28,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:22:28,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:22:28,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:22:28,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:22:28,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:22:28,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:22:28,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:22:28,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:22:28,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:22:28,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:22:28,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:22:28,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:22:28,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:22:28,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:22:28,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:22:28,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:22:28,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:22:28,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:22:28,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:22:28,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:22:28,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:22:28,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:22:28,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:22:28,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:22:28,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:22:28,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:22:28,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:22:28,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:22:28,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:22:28,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:22:28,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:22:28,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:22:28,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:22:28,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:22:28,342 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 [2020-09-24 19:22:28,389 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:22:28,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:22:28,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:22:28,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:22:28,392 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:22:28,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:22:28,393 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:22:28,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:22:28,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:22:28,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:22:28,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:22:28,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:22:28,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:22:28,395 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:22:28,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:22:28,396 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:22:28,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:22:28,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:22:28,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:22:28,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:22:28,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:22:28,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:22:28,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:22:28,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:22:28,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:22:28,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:22:28,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:22:28,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:22:28,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:22:28,399 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:22:28,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:22:28,843 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:22:28,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:22:28,849 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:22:28,850 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:22:28,851 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-24 19:22:28,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f977fa45/53eeb9cfc3e8442db1580fac098a2060/FLAGa3a180863 [2020-09-24 19:22:29,525 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:22:29,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-24 19:22:29,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f977fa45/53eeb9cfc3e8442db1580fac098a2060/FLAGa3a180863 [2020-09-24 19:22:29,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f977fa45/53eeb9cfc3e8442db1580fac098a2060 [2020-09-24 19:22:29,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:22:29,815 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:22:29,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:22:29,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:22:29,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:22:29,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:29" (1/1) ... [2020-09-24 19:22:29,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dbf213c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:29, skipping insertion in model container [2020-09-24 19:22:29,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:29" (1/1) ... [2020-09-24 19:22:29,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:22:29,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:22:30,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:22:30,191 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:22:30,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:22:30,361 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:22:30,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:30 WrapperNode [2020-09-24 19:22:30,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:22:30,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:22:30,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:22:30,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:22:30,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:30" (1/1) ... [2020-09-24 19:22:30,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:30" (1/1) ... [2020-09-24 19:22:30,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:30" (1/1) ... [2020-09-24 19:22:30,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:30" (1/1) ... [2020-09-24 19:22:30,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:30" (1/1) ... [2020-09-24 19:22:30,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:30" (1/1) ... [2020-09-24 19:22:30,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:30" (1/1) ... [2020-09-24 19:22:30,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:22:30,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:22:30,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:22:30,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:22:30,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:30" (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 [2020-09-24 19:22:30,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:22:30,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:22:30,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-24 19:22:30,505 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:22:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:22:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 19:22:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:22:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 19:22:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-24 19:22:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:22:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:22:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:22:30,749 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 19:22:31,427 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-24 19:22:31,428 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-24 19:22:31,445 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:22:31,445 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 19:22:31,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:31 BoogieIcfgContainer [2020-09-24 19:22:31,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:22:31,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:22:31,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:22:31,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:22:31,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:22:29" (1/3) ... [2020-09-24 19:22:31,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef51edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:31, skipping insertion in model container [2020-09-24 19:22:31,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:30" (2/3) ... [2020-09-24 19:22:31,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef51edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:31, skipping insertion in model container [2020-09-24 19:22:31,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:31" (3/3) ... [2020-09-24 19:22:31,463 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_14.cil.c [2020-09-24 19:22:31,475 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:22:31,486 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:22:31,508 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:22:31,542 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:22:31,542 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:22:31,542 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:22:31,543 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:22:31,543 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:22:31,543 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:22:31,543 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:22:31,543 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:22:31,574 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-24 19:22:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 19:22:31,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:31,593 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] [2020-09-24 19:22:31,593 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:31,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:31,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1268045474, now seen corresponding path program 1 times [2020-09-24 19:22:31,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:31,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395758965] [2020-09-24 19:22:31,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:31,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:32,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:32,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:32,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:32,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-24 19:22:32,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:32,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-24 19:22:32,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-24 19:22:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 19:22:32,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:22:33,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:33,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:33,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:33,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:33,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:33,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:33,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:33,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:33,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:33,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395758965] [2020-09-24 19:22:33,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:33,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:33,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054764764] [2020-09-24 19:22:33,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:33,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:33,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:33,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:33,107 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 3 states. [2020-09-24 19:22:33,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:33,237 INFO L93 Difference]: Finished difference Result 979 states and 1295 transitions. [2020-09-24 19:22:33,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:33,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-09-24 19:22:33,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:33,263 INFO L225 Difference]: With dead ends: 979 [2020-09-24 19:22:33,264 INFO L226 Difference]: Without dead ends: 635 [2020-09-24 19:22:33,271 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 [2020-09-24 19:22:33,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2020-09-24 19:22:33,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 633. [2020-09-24 19:22:33,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-09-24 19:22:33,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 782 transitions. [2020-09-24 19:22:33,389 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 782 transitions. Word has length 158 [2020-09-24 19:22:33,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:33,390 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 782 transitions. [2020-09-24 19:22:33,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 782 transitions. [2020-09-24 19:22:33,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 19:22:33,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:33,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:33,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:22:33,396 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:33,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:33,396 INFO L82 PathProgramCache]: Analyzing trace with hash 367087975, now seen corresponding path program 1 times [2020-09-24 19:22:33,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:33,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622932410] [2020-09-24 19:22:33,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:33,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:33,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:33,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:33,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:34,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:34,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-24 19:22:34,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:22:34,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:22:34,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:34,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:34,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-09-24 19:22:34,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:22:34,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:34,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:34,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:34,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:34,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:34,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:34,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:34,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:34,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:34,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:34,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:34,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:34,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:34,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622932410] [2020-09-24 19:22:34,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:34,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:34,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750045683] [2020-09-24 19:22:34,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:34,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:34,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:34,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:34,513 INFO L87 Difference]: Start difference. First operand 633 states and 782 transitions. Second operand 3 states. [2020-09-24 19:22:34,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:34,551 INFO L93 Difference]: Finished difference Result 1611 states and 2049 transitions. [2020-09-24 19:22:34,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:34,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-09-24 19:22:34,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:34,558 INFO L225 Difference]: With dead ends: 1611 [2020-09-24 19:22:34,559 INFO L226 Difference]: Without dead ends: 1122 [2020-09-24 19:22:34,562 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 [2020-09-24 19:22:34,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2020-09-24 19:22:34,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 878. [2020-09-24 19:22:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-09-24 19:22:34,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1100 transitions. [2020-09-24 19:22:34,597 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1100 transitions. Word has length 159 [2020-09-24 19:22:34,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:34,598 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1100 transitions. [2020-09-24 19:22:34,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:34,598 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1100 transitions. [2020-09-24 19:22:34,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 19:22:34,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:34,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:34,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:22:34,604 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:34,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:34,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1184736425, now seen corresponding path program 1 times [2020-09-24 19:22:34,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:34,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167375557] [2020-09-24 19:22:34,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:34,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:34,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:35,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:35,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:35,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-24 19:22:35,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:35,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 659 [2020-09-24 19:22:35,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:22:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-09-24 19:22:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 19:22:35,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:35,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:35,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:35,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:35,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:35,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:35,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:35,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:35,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:35,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:35,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:35,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:35,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:35,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167375557] [2020-09-24 19:22:35,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:35,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:22:35,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783838579] [2020-09-24 19:22:35,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:22:35,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:35,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:22:35,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:22:35,360 INFO L87 Difference]: Start difference. First operand 878 states and 1100 transitions. Second operand 4 states. [2020-09-24 19:22:35,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:35,604 INFO L93 Difference]: Finished difference Result 1066 states and 1337 transitions. [2020-09-24 19:22:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:22:35,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2020-09-24 19:22:35,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:35,610 INFO L225 Difference]: With dead ends: 1066 [2020-09-24 19:22:35,611 INFO L226 Difference]: Without dead ends: 1064 [2020-09-24 19:22:35,612 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 [2020-09-24 19:22:35,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-09-24 19:22:35,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 908. [2020-09-24 19:22:35,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2020-09-24 19:22:35,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1138 transitions. [2020-09-24 19:22:35,640 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1138 transitions. Word has length 159 [2020-09-24 19:22:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:35,640 INFO L479 AbstractCegarLoop]: Abstraction has 908 states and 1138 transitions. [2020-09-24 19:22:35,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:22:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1138 transitions. [2020-09-24 19:22:35,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-24 19:22:35,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:35,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:35,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:22:35,645 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:35,645 INFO L82 PathProgramCache]: Analyzing trace with hash -252964714, now seen corresponding path program 1 times [2020-09-24 19:22:35,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:35,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355790328] [2020-09-24 19:22:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:35,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:35,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:35,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:36,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:36,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:36,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:36,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:36,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:22:36,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:22:36,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:22:36,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:36,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:36,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-09-24 19:22:36,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:22:36,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:36,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:36,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:36,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:36,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:36,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:36,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:36,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:36,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:36,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:36,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:36,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:36,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:36,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1355790328] [2020-09-24 19:22:36,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:36,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:36,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838217848] [2020-09-24 19:22:36,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:36,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:36,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:36,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:36,763 INFO L87 Difference]: Start difference. First operand 908 states and 1138 transitions. Second operand 3 states. [2020-09-24 19:22:36,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:36,803 INFO L93 Difference]: Finished difference Result 1591 states and 2039 transitions. [2020-09-24 19:22:36,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:36,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-09-24 19:22:36,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:36,811 INFO L225 Difference]: With dead ends: 1591 [2020-09-24 19:22:36,811 INFO L226 Difference]: Without dead ends: 809 [2020-09-24 19:22:36,814 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 [2020-09-24 19:22:36,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2020-09-24 19:22:36,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2020-09-24 19:22:36,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-09-24 19:22:36,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1012 transitions. [2020-09-24 19:22:36,844 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1012 transitions. Word has length 165 [2020-09-24 19:22:36,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:36,845 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 1012 transitions. [2020-09-24 19:22:36,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:36,846 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1012 transitions. [2020-09-24 19:22:36,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-24 19:22:36,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:36,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:36,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:22:36,851 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:36,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:36,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1580880327, now seen corresponding path program 1 times [2020-09-24 19:22:36,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:36,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935839825] [2020-09-24 19:22:36,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:36,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:37,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:37,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:37,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:37,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:37,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:37,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-24 19:22:37,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:37,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:22:37,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:37,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:37,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-24 19:22:37,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:22:37,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:37,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:37,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:37,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:37,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:37,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:37,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:37,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:37,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:37,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935839825] [2020-09-24 19:22:37,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:37,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:37,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450890857] [2020-09-24 19:22:37,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:37,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:37,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:37,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:37,952 INFO L87 Difference]: Start difference. First operand 809 states and 1012 transitions. Second operand 3 states. [2020-09-24 19:22:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:37,990 INFO L93 Difference]: Finished difference Result 1494 states and 1902 transitions. [2020-09-24 19:22:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:37,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-09-24 19:22:37,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:37,995 INFO L225 Difference]: With dead ends: 1494 [2020-09-24 19:22:37,995 INFO L226 Difference]: Without dead ends: 830 [2020-09-24 19:22:37,997 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 [2020-09-24 19:22:37,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-09-24 19:22:38,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 827. [2020-09-24 19:22:38,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2020-09-24 19:22:38,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1033 transitions. [2020-09-24 19:22:38,025 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1033 transitions. Word has length 169 [2020-09-24 19:22:38,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:38,026 INFO L479 AbstractCegarLoop]: Abstraction has 827 states and 1033 transitions. [2020-09-24 19:22:38,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:38,026 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1033 transitions. [2020-09-24 19:22:38,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 19:22:38,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:38,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:38,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:22:38,029 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:38,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:38,030 INFO L82 PathProgramCache]: Analyzing trace with hash -368440854, now seen corresponding path program 1 times [2020-09-24 19:22:38,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:38,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681926136] [2020-09-24 19:22:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:38,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:38,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:38,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:38,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:38,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-24 19:22:38,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:38,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 852 [2020-09-24 19:22:38,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:38,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:22:38,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 19:22:38,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-24 19:22:38,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:39,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:39,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:39,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:39,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:39,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:39,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:39,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:39,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:39,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:39,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:39,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681926136] [2020-09-24 19:22:39,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:39,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:22:39,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508551205] [2020-09-24 19:22:39,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:22:39,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:39,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:22:39,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:22:39,061 INFO L87 Difference]: Start difference. First operand 827 states and 1033 transitions. Second operand 6 states. [2020-09-24 19:22:39,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:39,317 INFO L93 Difference]: Finished difference Result 1622 states and 2077 transitions. [2020-09-24 19:22:39,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:22:39,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2020-09-24 19:22:39,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:39,324 INFO L225 Difference]: With dead ends: 1622 [2020-09-24 19:22:39,324 INFO L226 Difference]: Without dead ends: 940 [2020-09-24 19:22:39,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:22:39,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2020-09-24 19:22:39,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 907. [2020-09-24 19:22:39,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 907 states. [2020-09-24 19:22:39,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1151 transitions. [2020-09-24 19:22:39,362 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1151 transitions. Word has length 170 [2020-09-24 19:22:39,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:39,363 INFO L479 AbstractCegarLoop]: Abstraction has 907 states and 1151 transitions. [2020-09-24 19:22:39,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:22:39,363 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1151 transitions. [2020-09-24 19:22:39,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 19:22:39,366 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:39,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:39,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:22:39,367 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:39,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:39,367 INFO L82 PathProgramCache]: Analyzing trace with hash 437023208, now seen corresponding path program 1 times [2020-09-24 19:22:39,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:39,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636839934] [2020-09-24 19:22:39,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:39,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:39,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:39,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:39,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:39,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:40,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:40,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-24 19:22:40,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:40,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-24 19:22:40,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:40,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:22:40,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-09-24 19:22:40,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 19:22:40,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:40,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:40,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:40,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:40,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:40,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:40,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:40,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:40,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:40,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:40,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636839934] [2020-09-24 19:22:40,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:40,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:22:40,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550284469] [2020-09-24 19:22:40,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:22:40,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:40,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:22:40,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:22:40,472 INFO L87 Difference]: Start difference. First operand 907 states and 1151 transitions. Second operand 4 states. [2020-09-24 19:22:40,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:40,702 INFO L93 Difference]: Finished difference Result 1074 states and 1364 transitions. [2020-09-24 19:22:40,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:22:40,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2020-09-24 19:22:40,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:40,709 INFO L225 Difference]: With dead ends: 1074 [2020-09-24 19:22:40,709 INFO L226 Difference]: Without dead ends: 1072 [2020-09-24 19:22:40,711 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 [2020-09-24 19:22:40,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-09-24 19:22:40,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 917. [2020-09-24 19:22:40,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-09-24 19:22:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1163 transitions. [2020-09-24 19:22:40,743 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1163 transitions. Word has length 171 [2020-09-24 19:22:40,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:40,744 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 1163 transitions. [2020-09-24 19:22:40,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:22:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1163 transitions. [2020-09-24 19:22:40,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-24 19:22:40,747 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:40,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:40,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:22:40,748 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:40,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:40,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1260886713, now seen corresponding path program 1 times [2020-09-24 19:22:40,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:40,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376486463] [2020-09-24 19:22:40,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:40,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:40,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:41,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:41,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:41,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:22:41,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:41,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 948 [2020-09-24 19:22:41,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:41,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:41,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-09-24 19:22:41,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 19:22:41,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:41,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:41,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:41,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:41,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:41,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:41,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:41,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:41,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:41,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:41,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376486463] [2020-09-24 19:22:41,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:41,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:41,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466761123] [2020-09-24 19:22:41,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:41,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:41,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:41,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:41,836 INFO L87 Difference]: Start difference. First operand 917 states and 1163 transitions. Second operand 3 states. [2020-09-24 19:22:41,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:41,945 INFO L93 Difference]: Finished difference Result 2430 states and 3160 transitions. [2020-09-24 19:22:41,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:41,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-09-24 19:22:41,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:41,953 INFO L225 Difference]: With dead ends: 2430 [2020-09-24 19:22:41,953 INFO L226 Difference]: Without dead ends: 1658 [2020-09-24 19:22:41,955 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 [2020-09-24 19:22:41,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2020-09-24 19:22:42,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1656. [2020-09-24 19:22:42,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1656 states. [2020-09-24 19:22:42,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2114 transitions. [2020-09-24 19:22:42,010 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2114 transitions. Word has length 178 [2020-09-24 19:22:42,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:42,010 INFO L479 AbstractCegarLoop]: Abstraction has 1656 states and 2114 transitions. [2020-09-24 19:22:42,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:42,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2114 transitions. [2020-09-24 19:22:42,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-24 19:22:42,015 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:42,016 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, 1] [2020-09-24 19:22:42,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:22:42,016 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:42,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:42,017 INFO L82 PathProgramCache]: Analyzing trace with hash -717164199, now seen corresponding path program 1 times [2020-09-24 19:22:42,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:42,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667557490] [2020-09-24 19:22:42,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:42,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:42,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:42,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:42,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:43,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:43,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 19:22:43,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:22:43,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:22:43,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:43,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:43,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-24 19:22:43,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:22:43,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:43,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:43,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:43,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:43,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:43,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:43,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:43,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:43,108 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:43,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667557490] [2020-09-24 19:22:43,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:43,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:43,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500426081] [2020-09-24 19:22:43,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:43,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:43,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:43,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:43,115 INFO L87 Difference]: Start difference. First operand 1656 states and 2114 transitions. Second operand 3 states. [2020-09-24 19:22:43,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:43,374 INFO L93 Difference]: Finished difference Result 3477 states and 4591 transitions. [2020-09-24 19:22:43,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:43,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-09-24 19:22:43,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:43,383 INFO L225 Difference]: With dead ends: 3477 [2020-09-24 19:22:43,384 INFO L226 Difference]: Without dead ends: 1744 [2020-09-24 19:22:43,387 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 [2020-09-24 19:22:43,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2020-09-24 19:22:43,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1732. [2020-09-24 19:22:43,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1732 states. [2020-09-24 19:22:43,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2202 transitions. [2020-09-24 19:22:43,454 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2202 transitions. Word has length 192 [2020-09-24 19:22:43,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:43,455 INFO L479 AbstractCegarLoop]: Abstraction has 1732 states and 2202 transitions. [2020-09-24 19:22:43,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:43,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2202 transitions. [2020-09-24 19:22:43,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-24 19:22:43,460 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:43,460 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:43,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:22:43,461 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:43,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:43,461 INFO L82 PathProgramCache]: Analyzing trace with hash -2107579087, now seen corresponding path program 1 times [2020-09-24 19:22:43,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:43,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898445126] [2020-09-24 19:22:43,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:43,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:43,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:43,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:43,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:43,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 19:22:43,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:43,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-09-24 19:22:43,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:43,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:43,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-09-24 19:22:43,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:22:43,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:43,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:43,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:43,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:43,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:43,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:43,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:43,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:43,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:43,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:43,952 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:22:43,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898445126] [2020-09-24 19:22:43,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:43,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:43,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622769793] [2020-09-24 19:22:43,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:43,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:43,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:43,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:43,955 INFO L87 Difference]: Start difference. First operand 1732 states and 2202 transitions. Second operand 3 states. [2020-09-24 19:22:44,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:44,078 INFO L93 Difference]: Finished difference Result 3309 states and 4244 transitions. [2020-09-24 19:22:44,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:44,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-09-24 19:22:44,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:44,086 INFO L225 Difference]: With dead ends: 3309 [2020-09-24 19:22:44,086 INFO L226 Difference]: Without dead ends: 1722 [2020-09-24 19:22:44,089 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 [2020-09-24 19:22:44,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2020-09-24 19:22:44,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1720. [2020-09-24 19:22:44,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1720 states. [2020-09-24 19:22:44,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2187 transitions. [2020-09-24 19:22:44,139 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2187 transitions. Word has length 192 [2020-09-24 19:22:44,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:44,140 INFO L479 AbstractCegarLoop]: Abstraction has 1720 states and 2187 transitions. [2020-09-24 19:22:44,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:44,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2187 transitions. [2020-09-24 19:22:44,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-24 19:22:44,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:44,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:44,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 19:22:44,146 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:44,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:44,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1666311923, now seen corresponding path program 1 times [2020-09-24 19:22:44,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:44,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353535355] [2020-09-24 19:22:44,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:44,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:44,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:44,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:44,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:44,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-24 19:22:44,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:44,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-24 19:22:44,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-24 19:22:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 19:22:44,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:44,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:44,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:44,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:44,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:44,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:44,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:44,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:44,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:44,492 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:44,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353535355] [2020-09-24 19:22:44,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:44,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:44,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642410148] [2020-09-24 19:22:44,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:44,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:44,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:44,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:44,495 INFO L87 Difference]: Start difference. First operand 1720 states and 2187 transitions. Second operand 3 states. [2020-09-24 19:22:44,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:44,587 INFO L93 Difference]: Finished difference Result 4644 states and 5947 transitions. [2020-09-24 19:22:44,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:44,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2020-09-24 19:22:44,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:44,601 INFO L225 Difference]: With dead ends: 4644 [2020-09-24 19:22:44,601 INFO L226 Difference]: Without dead ends: 3045 [2020-09-24 19:22:44,606 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 [2020-09-24 19:22:44,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2020-09-24 19:22:44,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 2144. [2020-09-24 19:22:44,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2144 states. [2020-09-24 19:22:44,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2144 states to 2144 states and 2722 transitions. [2020-09-24 19:22:44,684 INFO L78 Accepts]: Start accepts. Automaton has 2144 states and 2722 transitions. Word has length 193 [2020-09-24 19:22:44,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:44,685 INFO L479 AbstractCegarLoop]: Abstraction has 2144 states and 2722 transitions. [2020-09-24 19:22:44,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:44,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2144 states and 2722 transitions. [2020-09-24 19:22:44,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 19:22:44,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:44,691 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, 1] [2020-09-24 19:22:44,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 19:22:44,692 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:44,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:44,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1310639377, now seen corresponding path program 1 times [2020-09-24 19:22:44,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:44,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064013975] [2020-09-24 19:22:44,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:44,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:44,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:44,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:45,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:45,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-24 19:22:45,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:45,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-24 19:22:45,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:22:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-24 19:22:45,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 19:22:45,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:45,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:45,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:45,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:45,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:45,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:45,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:45,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:45,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:45,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:45,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:45,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:45,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064013975] [2020-09-24 19:22:45,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:45,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:22:45,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436924483] [2020-09-24 19:22:45,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:22:45,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:45,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:22:45,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:22:45,798 INFO L87 Difference]: Start difference. First operand 2144 states and 2722 transitions. Second operand 4 states. [2020-09-24 19:22:46,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:46,095 INFO L93 Difference]: Finished difference Result 4383 states and 5703 transitions. [2020-09-24 19:22:46,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:22:46,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 194 [2020-09-24 19:22:46,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:46,105 INFO L225 Difference]: With dead ends: 4383 [2020-09-24 19:22:46,105 INFO L226 Difference]: Without dead ends: 2056 [2020-09-24 19:22:46,111 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 [2020-09-24 19:22:46,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2020-09-24 19:22:46,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2056. [2020-09-24 19:22:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2056 states. [2020-09-24 19:22:46,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2604 transitions. [2020-09-24 19:22:46,173 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2604 transitions. Word has length 194 [2020-09-24 19:22:46,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:46,174 INFO L479 AbstractCegarLoop]: Abstraction has 2056 states and 2604 transitions. [2020-09-24 19:22:46,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:22:46,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2604 transitions. [2020-09-24 19:22:46,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 19:22:46,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:46,179 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-09-24 19:22:46,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 19:22:46,179 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:46,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:46,180 INFO L82 PathProgramCache]: Analyzing trace with hash -181447866, now seen corresponding path program 1 times [2020-09-24 19:22:46,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:46,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [726130669] [2020-09-24 19:22:46,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:46,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:46,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:46,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:46,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-24 19:22:46,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:22:46,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-24 19:22:46,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-24 19:22:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 19:22:46,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:46,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:46,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:46,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:46,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:46,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:46,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:46,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:46,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:22:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:46,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [726130669] [2020-09-24 19:22:46,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:46,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:46,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580763175] [2020-09-24 19:22:46,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:46,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:46,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:46,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:46,497 INFO L87 Difference]: Start difference. First operand 2056 states and 2604 transitions. Second operand 3 states. [2020-09-24 19:22:46,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:46,630 INFO L93 Difference]: Finished difference Result 3952 states and 5078 transitions. [2020-09-24 19:22:46,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:46,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-09-24 19:22:46,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:46,647 INFO L225 Difference]: With dead ends: 3952 [2020-09-24 19:22:46,648 INFO L226 Difference]: Without dead ends: 2967 [2020-09-24 19:22:46,657 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 [2020-09-24 19:22:46,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2020-09-24 19:22:46,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2967. [2020-09-24 19:22:46,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2967 states. [2020-09-24 19:22:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 3754 transitions. [2020-09-24 19:22:46,790 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 3754 transitions. Word has length 194 [2020-09-24 19:22:46,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:46,790 INFO L479 AbstractCegarLoop]: Abstraction has 2967 states and 3754 transitions. [2020-09-24 19:22:46,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:46,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 3754 transitions. [2020-09-24 19:22:46,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 19:22:46,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:46,797 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-09-24 19:22:46,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 19:22:46,797 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:46,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:46,797 INFO L82 PathProgramCache]: Analyzing trace with hash 489605335, now seen corresponding path program 1 times [2020-09-24 19:22:46,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:46,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182992004] [2020-09-24 19:22:46,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:46,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:46,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:46,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-24 19:22:46,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:46,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 19:22:46,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:46,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-24 19:22:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:22:46,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:46,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:46,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:46,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:46,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:46,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:46,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:22:46,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:46,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:46,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:47,040 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:47,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182992004] [2020-09-24 19:22:47,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:47,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:47,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703611317] [2020-09-24 19:22:47,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:47,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:47,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:47,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:47,043 INFO L87 Difference]: Start difference. First operand 2967 states and 3754 transitions. Second operand 3 states. [2020-09-24 19:22:47,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:47,184 INFO L93 Difference]: Finished difference Result 5816 states and 7386 transitions. [2020-09-24 19:22:47,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:47,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2020-09-24 19:22:47,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:47,202 INFO L225 Difference]: With dead ends: 5816 [2020-09-24 19:22:47,202 INFO L226 Difference]: Without dead ends: 2994 [2020-09-24 19:22:47,209 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 [2020-09-24 19:22:47,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2020-09-24 19:22:47,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 2967. [2020-09-24 19:22:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2967 states. [2020-09-24 19:22:47,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 3734 transitions. [2020-09-24 19:22:47,345 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 3734 transitions. Word has length 195 [2020-09-24 19:22:47,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:47,346 INFO L479 AbstractCegarLoop]: Abstraction has 2967 states and 3734 transitions. [2020-09-24 19:22:47,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:47,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 3734 transitions. [2020-09-24 19:22:47,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-24 19:22:47,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:47,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:47,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 19:22:47,357 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:47,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:47,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1800942466, now seen corresponding path program 1 times [2020-09-24 19:22:47,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:47,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718812933] [2020-09-24 19:22:47,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:47,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:47,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:47,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:47,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:48,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:48,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 19:22:48,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:22:48,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:22:48,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:48,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:48,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 19:22:48,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:22:48,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:48,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:48,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:48,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:48,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:48,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:48,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:48,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:48,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:48,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:48,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:48,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:48,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718812933] [2020-09-24 19:22:48,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:48,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:48,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352912909] [2020-09-24 19:22:48,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:48,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:48,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:48,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:48,532 INFO L87 Difference]: Start difference. First operand 2967 states and 3734 transitions. Second operand 3 states. [2020-09-24 19:22:48,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:48,786 INFO L93 Difference]: Finished difference Result 6359 states and 8252 transitions. [2020-09-24 19:22:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:48,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-09-24 19:22:48,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:48,801 INFO L225 Difference]: With dead ends: 6359 [2020-09-24 19:22:48,801 INFO L226 Difference]: Without dead ends: 3393 [2020-09-24 19:22:48,809 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 [2020-09-24 19:22:48,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3393 states. [2020-09-24 19:22:48,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3393 to 3375. [2020-09-24 19:22:48,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3375 states. [2020-09-24 19:22:48,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3375 states to 3375 states and 4187 transitions. [2020-09-24 19:22:48,919 INFO L78 Accepts]: Start accepts. Automaton has 3375 states and 4187 transitions. Word has length 197 [2020-09-24 19:22:48,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:48,920 INFO L479 AbstractCegarLoop]: Abstraction has 3375 states and 4187 transitions. [2020-09-24 19:22:48,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:48,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3375 states and 4187 transitions. [2020-09-24 19:22:48,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 19:22:48,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:48,927 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:48,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 19:22:48,927 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:48,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:48,927 INFO L82 PathProgramCache]: Analyzing trace with hash -818189578, now seen corresponding path program 1 times [2020-09-24 19:22:48,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:48,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889326379] [2020-09-24 19:22:48,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:48,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:49,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:49,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:49,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:49,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 19:22:49,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:49,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 935 [2020-09-24 19:22:49,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:49,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:22:49,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 19:22:49,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:22:49,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:49,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:49,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:49,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:49,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:49,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:49,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:49,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:49,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:49,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:49,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:49,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:49,955 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:49,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889326379] [2020-09-24 19:22:49,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:49,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:22:49,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30385743] [2020-09-24 19:22:49,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:22:49,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:49,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:22:49,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:22:49,959 INFO L87 Difference]: Start difference. First operand 3375 states and 4187 transitions. Second operand 4 states. [2020-09-24 19:22:50,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:50,451 INFO L93 Difference]: Finished difference Result 10078 states and 12650 transitions. [2020-09-24 19:22:50,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:22:50,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2020-09-24 19:22:50,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:50,488 INFO L225 Difference]: With dead ends: 10078 [2020-09-24 19:22:50,489 INFO L226 Difference]: Without dead ends: 6848 [2020-09-24 19:22:50,496 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 [2020-09-24 19:22:50,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6848 states. [2020-09-24 19:22:50,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6848 to 3402. [2020-09-24 19:22:50,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3402 states. [2020-09-24 19:22:50,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 4214 transitions. [2020-09-24 19:22:50,613 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 4214 transitions. Word has length 199 [2020-09-24 19:22:50,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:50,614 INFO L479 AbstractCegarLoop]: Abstraction has 3402 states and 4214 transitions. [2020-09-24 19:22:50,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:22:50,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 4214 transitions. [2020-09-24 19:22:50,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 19:22:50,621 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:50,621 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] [2020-09-24 19:22:50,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 19:22:50,621 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:50,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:50,622 INFO L82 PathProgramCache]: Analyzing trace with hash 595350838, now seen corresponding path program 1 times [2020-09-24 19:22:50,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:50,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822359167] [2020-09-24 19:22:50,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:50,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:50,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:50,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-24 19:22:50,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:50,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 19:22:50,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:22:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-09-24 19:22:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 19:22:50,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:50,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:50,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:50,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:50,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:50,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:50,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:50,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:50,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:50,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:50,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:50,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:50,900 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:50,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822359167] [2020-09-24 19:22:50,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:50,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:22:50,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560318117] [2020-09-24 19:22:50,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:22:50,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:50,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:22:50,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:22:50,904 INFO L87 Difference]: Start difference. First operand 3402 states and 4214 transitions. Second operand 4 states. [2020-09-24 19:22:51,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:51,117 INFO L93 Difference]: Finished difference Result 13100 states and 16311 transitions. [2020-09-24 19:22:51,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:22:51,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 201 [2020-09-24 19:22:51,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:51,146 INFO L225 Difference]: With dead ends: 13100 [2020-09-24 19:22:51,146 INFO L226 Difference]: Without dead ends: 9843 [2020-09-24 19:22:51,156 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 [2020-09-24 19:22:51,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9843 states. [2020-09-24 19:22:51,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9843 to 5878. [2020-09-24 19:22:51,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5878 states. [2020-09-24 19:22:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 7287 transitions. [2020-09-24 19:22:51,444 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 7287 transitions. Word has length 201 [2020-09-24 19:22:51,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:51,444 INFO L479 AbstractCegarLoop]: Abstraction has 5878 states and 7287 transitions. [2020-09-24 19:22:51,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:22:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 7287 transitions. [2020-09-24 19:22:51,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 19:22:51,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:51,454 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] [2020-09-24 19:22:51,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 19:22:51,454 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:51,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:51,455 INFO L82 PathProgramCache]: Analyzing trace with hash -690870181, now seen corresponding path program 1 times [2020-09-24 19:22:51,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:51,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594271476] [2020-09-24 19:22:51,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:22:51,480 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:22:51,480 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:22:51,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 19:22:51,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:22:51 BoogieIcfgContainer [2020-09-24 19:22:51,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:22:51,538 INFO L168 Benchmark]: Toolchain (without parser) took 21724.14 ms. Allocated memory was 140.5 MB in the beginning and 558.9 MB in the end (delta: 418.4 MB). Free memory was 103.2 MB in the beginning and 478.4 MB in the end (delta: -375.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:51,538 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-24 19:22:51,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.02 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.6 MB in the beginning and 178.9 MB in the end (delta: -76.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:51,545 INFO L168 Benchmark]: Boogie Preprocessor took 67.86 ms. Allocated memory is still 203.9 MB. Free memory was 178.9 MB in the beginning and 176.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:51,548 INFO L168 Benchmark]: RCFGBuilder took 1022.90 ms. Allocated memory is still 203.9 MB. Free memory was 176.2 MB in the beginning and 104.6 MB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:51,549 INFO L168 Benchmark]: TraceAbstraction took 20078.80 ms. Allocated memory was 203.9 MB in the beginning and 558.9 MB in the end (delta: 354.9 MB). Free memory was 104.6 MB in the beginning and 478.4 MB in the end (delta: -373.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 19:22:51,554 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 546.02 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.6 MB in the beginning and 178.9 MB in the end (delta: -76.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 67.86 ms. Allocated memory is still 203.9 MB. Free memory was 178.9 MB in the beginning and 176.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1022.90 ms. Allocated memory is still 203.9 MB. Free memory was 176.2 MB in the beginning and 104.6 MB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20078.80 ms. Allocated memory was 203.9 MB in the beginning and 558.9 MB in the end (delta: 354.9 MB). Free memory was 104.6 MB in the beginning and 478.4 MB in the end (delta: -373.8 MB). There was no memory consumed. 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: 19.9s, OverallIterations: 18, TraceHistogramMax: 2, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8473 SDtfs, 5102 SDslu, 8559 SDs, 0 SdLazy, 1313 SolverSat, 210 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5878occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 8966 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 3287 NumberOfCodeBlocks, 3287 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3069 ConstructedInterpolants, 0 QuantifiedInterpolants, 818635 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 123/123 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...