/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:06:26,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:06:26,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:06:26,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:06:26,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:06:26,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:06:26,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:06:26,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:06:26,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:06:26,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:06:26,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:06:26,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:06:26,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:06:26,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:06:26,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:06:26,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:06:26,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:06:26,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:06:26,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:06:26,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:06:26,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:06:26,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:06:26,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:06:26,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:06:26,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:06:26,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:06:26,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:06:26,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:06:26,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:06:26,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:06:26,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:06:26,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:06:26,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:06:26,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:06:26,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:06:26,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:06:26,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:06:26,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:06:26,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:06:26,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:06:26,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:06:26,522 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 17:06:26,548 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:06:26,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:06:26,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:06:26,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:06:26,550 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:06:26,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:06:26,551 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:06:26,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:06:26,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:06:26,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:06:26,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:06:26,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:06:26,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:06:26,552 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:06:26,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:06:26,553 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:06:26,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:06:26,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:06:26,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:06:26,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:06:26,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:06:26,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:06:26,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:06:26,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:06:26,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:06:26,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:06:26,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:06:26,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:06:26,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:06:26,556 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;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;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;log-additional-information=true; [2020-09-24 17:06:27,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:06:27,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:06:27,069 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:06:27,071 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:06:27,072 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:06:27,074 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-24 17:06:27,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d4c2819d/2479c89ed9854841b9d751e2d28b8423/FLAG31592747e [2020-09-24 17:06:27,765 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:06:27,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-24 17:06:27,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d4c2819d/2479c89ed9854841b9d751e2d28b8423/FLAG31592747e [2020-09-24 17:06:28,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d4c2819d/2479c89ed9854841b9d751e2d28b8423 [2020-09-24 17:06:28,078 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:06:28,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:06:28,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:06:28,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:06:28,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:06:28,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:06:28" (1/1) ... [2020-09-24 17:06:28,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231fe863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:28, skipping insertion in model container [2020-09-24 17:06:28,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:06:28" (1/1) ... [2020-09-24 17:06:28,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:06:28,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:06:28,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:06:28,608 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:06:28,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:06:28,803 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:06:28,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:28 WrapperNode [2020-09-24 17:06:28,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:06:28,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:06:28,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:06:28,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:06:28,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:28" (1/1) ... [2020-09-24 17:06:28,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:28" (1/1) ... [2020-09-24 17:06:28,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:28" (1/1) ... [2020-09-24 17:06:28,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:28" (1/1) ... [2020-09-24 17:06:28,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:28" (1/1) ... [2020-09-24 17:06:28,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:28" (1/1) ... [2020-09-24 17:06:28,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:28" (1/1) ... [2020-09-24 17:06:28,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:06:28,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:06:28,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:06:28,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:06:28,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:28" (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 17:06:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:06:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:06:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-24 17:06:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:06:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:06:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 17:06:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:06:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 17:06:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-24 17:06:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:06:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:06:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:06:29,191 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 17:06:29,886 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-24 17:06:29,887 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-24 17:06:29,905 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:06:29,905 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 17:06:29,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:06:29 BoogieIcfgContainer [2020-09-24 17:06:29,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:06:29,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:06:29,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:06:29,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:06:29,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:06:28" (1/3) ... [2020-09-24 17:06:29,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca9aa87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:06:29, skipping insertion in model container [2020-09-24 17:06:29,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:28" (2/3) ... [2020-09-24 17:06:29,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca9aa87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:06:29, skipping insertion in model container [2020-09-24 17:06:29,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:06:29" (3/3) ... [2020-09-24 17:06:29,925 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_13.cil.c [2020-09-24 17:06:29,937 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:06:29,949 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:06:29,973 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:06:30,006 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:06:30,006 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:06:30,007 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:06:30,007 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:06:30,007 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:06:30,007 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:06:30,007 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:06:30,008 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:06:30,040 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states. [2020-09-24 17:06:30,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 17:06:30,059 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:30,061 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] [2020-09-24 17:06:30,061 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:30,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:30,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1103530067, now seen corresponding path program 1 times [2020-09-24 17:06:30,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:30,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567704021] [2020-09-24 17:06:30,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:30,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:30,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:30,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:31,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:31,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:31,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-24 17:06:31,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:06:31,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1552 [2020-09-24 17:06:31,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:31,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:06:31,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 17:06:31,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-24 17:06:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:06:32,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:32,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:32,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:32,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:32,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:32,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:06:32,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:32,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:32,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:32,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:06:32,193 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 17:06:32,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567704021] [2020-09-24 17:06:32,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:32,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:06:32,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128447643] [2020-09-24 17:06:32,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:06:32,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:32,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:06:32,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:06:32,230 INFO L87 Difference]: Start difference. First operand 440 states. Second operand 7 states. [2020-09-24 17:06:32,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:32,689 INFO L93 Difference]: Finished difference Result 828 states and 1080 transitions. [2020-09-24 17:06:32,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:06:32,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-09-24 17:06:32,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:32,714 INFO L225 Difference]: With dead ends: 828 [2020-09-24 17:06:32,714 INFO L226 Difference]: Without dead ends: 473 [2020-09-24 17:06:32,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:06:32,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-09-24 17:06:32,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 446. [2020-09-24 17:06:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-09-24 17:06:32,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 534 transitions. [2020-09-24 17:06:32,808 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 534 transitions. Word has length 160 [2020-09-24 17:06:32,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:32,809 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 534 transitions. [2020-09-24 17:06:32,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:06:32,809 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 534 transitions. [2020-09-24 17:06:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-24 17:06:32,813 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:32,814 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] [2020-09-24 17:06:32,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:06:32,814 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:32,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:32,815 INFO L82 PathProgramCache]: Analyzing trace with hash 218441517, now seen corresponding path program 1 times [2020-09-24 17:06:32,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:32,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106080000] [2020-09-24 17:06:32,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:32,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:32,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:33,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:33,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:33,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:33,815 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:33,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 17:06:33,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:06:33,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 969 [2020-09-24 17:06:33,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:33,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:06:33,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 17:06:33,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 17:06:33,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:33,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:33,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:33,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:33,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:33,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:33,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:06:33,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:33,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:33,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:33,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:06:33,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106080000] [2020-09-24 17:06:33,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:06:33,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-24 17:06:33,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022433249] [2020-09-24 17:06:33,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:06:33,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:33,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:06:33,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:06:33,973 INFO L87 Difference]: Start difference. First operand 446 states and 534 transitions. Second operand 4 states. [2020-09-24 17:06:34,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:34,335 INFO L93 Difference]: Finished difference Result 967 states and 1212 transitions. [2020-09-24 17:06:34,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:06:34,336 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 185 [2020-09-24 17:06:34,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:34,341 INFO L225 Difference]: With dead ends: 967 [2020-09-24 17:06:34,341 INFO L226 Difference]: Without dead ends: 649 [2020-09-24 17:06:34,344 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 17:06:34,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2020-09-24 17:06:34,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 564. [2020-09-24 17:06:34,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-09-24 17:06:34,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 680 transitions. [2020-09-24 17:06:34,375 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 680 transitions. Word has length 185 [2020-09-24 17:06:34,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:34,378 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 680 transitions. [2020-09-24 17:06:34,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:06:34,378 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 680 transitions. [2020-09-24 17:06:34,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 17:06:34,388 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:34,389 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, 1, 1, 1, 1, 1, 1] [2020-09-24 17:06:34,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:06:34,389 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:34,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:34,390 INFO L82 PathProgramCache]: Analyzing trace with hash -2038795638, now seen corresponding path program 1 times [2020-09-24 17:06:34,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:34,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303233588] [2020-09-24 17:06:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:34,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:34,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:34,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:34,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:35,304 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:35,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 17:06:35,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:06:35,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 866 [2020-09-24 17:06:35,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:35,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:06:35,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 17:06:35,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 17:06:35,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:35,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:35,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:35,380 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:35,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:35,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:35,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:06:35,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:35,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:35,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:35,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:35,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:35,441 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:06:35,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303233588] [2020-09-24 17:06:35,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:35,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:06:35,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540999603] [2020-09-24 17:06:35,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:06:35,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:35,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:06:35,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:06:35,444 INFO L87 Difference]: Start difference. First operand 564 states and 680 transitions. Second operand 4 states. [2020-09-24 17:06:36,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:36,028 INFO L93 Difference]: Finished difference Result 1536 states and 1933 transitions. [2020-09-24 17:06:36,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:06:36,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 203 [2020-09-24 17:06:36,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:36,042 INFO L225 Difference]: With dead ends: 1536 [2020-09-24 17:06:36,043 INFO L226 Difference]: Without dead ends: 1100 [2020-09-24 17:06:36,045 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 17:06:36,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-09-24 17:06:36,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 593. [2020-09-24 17:06:36,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-09-24 17:06:36,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 719 transitions. [2020-09-24 17:06:36,090 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 719 transitions. Word has length 203 [2020-09-24 17:06:36,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:36,092 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 719 transitions. [2020-09-24 17:06:36,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:06:36,092 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 719 transitions. [2020-09-24 17:06:36,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 17:06:36,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:36,099 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, 1, 1, 1] [2020-09-24 17:06:36,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:06:36,099 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:36,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:36,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1997144865, now seen corresponding path program 1 times [2020-09-24 17:06:36,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:36,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885238638] [2020-09-24 17:06:36,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 17:06:37,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:06:37,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1228 [2020-09-24 17:06:37,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:37,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-24 17:06:37,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 17:06:37,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:37,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:37,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:37,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:06:37,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:37,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:37,479 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 17:06:37,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885238638] [2020-09-24 17:06:37,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:37,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:37,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86853481] [2020-09-24 17:06:37,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:37,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:37,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:37,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:37,483 INFO L87 Difference]: Start difference. First operand 593 states and 719 transitions. Second operand 3 states. [2020-09-24 17:06:37,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:37,554 INFO L93 Difference]: Finished difference Result 1062 states and 1311 transitions. [2020-09-24 17:06:37,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:37,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-09-24 17:06:37,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:37,558 INFO L225 Difference]: With dead ends: 1062 [2020-09-24 17:06:37,558 INFO L226 Difference]: Without dead ends: 609 [2020-09-24 17:06:37,560 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 17:06:37,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-09-24 17:06:37,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2020-09-24 17:06:37,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-09-24 17:06:37,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 735 transitions. [2020-09-24 17:06:37,584 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 735 transitions. Word has length 204 [2020-09-24 17:06:37,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:37,585 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 735 transitions. [2020-09-24 17:06:37,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:37,585 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 735 transitions. [2020-09-24 17:06:37,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-24 17:06:37,588 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:37,588 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, 1, 1, 1, 1] [2020-09-24 17:06:37,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:06:37,589 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:37,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:37,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1519790942, now seen corresponding path program 1 times [2020-09-24 17:06:37,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:37,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321611857] [2020-09-24 17:06:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:37,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:39,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:39,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-24 17:06:39,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:06:39,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1439 [2020-09-24 17:06:39,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-24 17:06:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:06:39,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:39,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:39,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:39,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:39,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:39,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:39,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:06:39,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:39,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 17:06:39,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321611857] [2020-09-24 17:06:39,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:39,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:39,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061524001] [2020-09-24 17:06:39,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:39,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:39,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:39,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:39,132 INFO L87 Difference]: Start difference. First operand 609 states and 735 transitions. Second operand 3 states. [2020-09-24 17:06:39,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:39,419 INFO L93 Difference]: Finished difference Result 1157 states and 1459 transitions. [2020-09-24 17:06:39,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:39,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-09-24 17:06:39,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:39,424 INFO L225 Difference]: With dead ends: 1157 [2020-09-24 17:06:39,424 INFO L226 Difference]: Without dead ends: 679 [2020-09-24 17:06:39,426 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 17:06:39,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-09-24 17:06:39,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 671. [2020-09-24 17:06:39,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2020-09-24 17:06:39,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 810 transitions. [2020-09-24 17:06:39,445 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 810 transitions. Word has length 205 [2020-09-24 17:06:39,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:39,446 INFO L479 AbstractCegarLoop]: Abstraction has 671 states and 810 transitions. [2020-09-24 17:06:39,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:39,446 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 810 transitions. [2020-09-24 17:06:39,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-24 17:06:39,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:39,450 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, 1, 1, 1, 1] [2020-09-24 17:06:39,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:06:39,450 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:39,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:39,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1486188610, now seen corresponding path program 1 times [2020-09-24 17:06:39,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:39,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361923615] [2020-09-24 17:06:39,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:39,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:39,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:39,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:39,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:40,870 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:40,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-24 17:06:40,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:06:40,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1390 [2020-09-24 17:06:40,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:40,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:40,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-24 17:06:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:06:40,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:40,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:40,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:40,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:40,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:40,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:40,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:06:40,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:40,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:40,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:40,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:40,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:40,977 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 17:06:40,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361923615] [2020-09-24 17:06:40,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:40,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:40,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253509600] [2020-09-24 17:06:40,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:40,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:40,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:40,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:40,980 INFO L87 Difference]: Start difference. First operand 671 states and 810 transitions. Second operand 3 states. [2020-09-24 17:06:41,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:41,287 INFO L93 Difference]: Finished difference Result 1292 states and 1622 transitions. [2020-09-24 17:06:41,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:41,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-09-24 17:06:41,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:41,293 INFO L225 Difference]: With dead ends: 1292 [2020-09-24 17:06:41,294 INFO L226 Difference]: Without dead ends: 765 [2020-09-24 17:06:41,296 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 17:06:41,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-09-24 17:06:41,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 714. [2020-09-24 17:06:41,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 714 states. [2020-09-24 17:06:41,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 874 transitions. [2020-09-24 17:06:41,326 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 874 transitions. Word has length 205 [2020-09-24 17:06:41,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:41,327 INFO L479 AbstractCegarLoop]: Abstraction has 714 states and 874 transitions. [2020-09-24 17:06:41,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:41,328 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 874 transitions. [2020-09-24 17:06:41,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-24 17:06:41,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:41,334 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:06:41,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 17:06:41,335 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:41,336 INFO L82 PathProgramCache]: Analyzing trace with hash -50860722, now seen corresponding path program 1 times [2020-09-24 17:06:41,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:41,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375502999] [2020-09-24 17:06:41,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:41,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:41,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:41,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:41,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:41,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:42,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:42,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-09-24 17:06:42,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:06:42,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 832 [2020-09-24 17:06:42,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:42,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:06:42,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-24 17:06:42,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 17:06:42,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:42,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:42,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:42,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:42,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:42,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:42,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:06:42,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:42,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:42,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:42,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:42,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:42,286 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 17:06:42,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375502999] [2020-09-24 17:06:42,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:42,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:06:42,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896870722] [2020-09-24 17:06:42,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:06:42,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:42,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:06:42,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:06:42,288 INFO L87 Difference]: Start difference. First operand 714 states and 874 transitions. Second operand 4 states. [2020-09-24 17:06:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:42,692 INFO L93 Difference]: Finished difference Result 1916 states and 2426 transitions. [2020-09-24 17:06:42,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:06:42,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 209 [2020-09-24 17:06:42,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:42,699 INFO L225 Difference]: With dead ends: 1916 [2020-09-24 17:06:42,700 INFO L226 Difference]: Without dead ends: 1358 [2020-09-24 17:06:42,701 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 17:06:42,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2020-09-24 17:06:42,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 767. [2020-09-24 17:06:42,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-09-24 17:06:42,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 935 transitions. [2020-09-24 17:06:42,740 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 935 transitions. Word has length 209 [2020-09-24 17:06:42,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:42,741 INFO L479 AbstractCegarLoop]: Abstraction has 767 states and 935 transitions. [2020-09-24 17:06:42,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:06:42,741 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 935 transitions. [2020-09-24 17:06:42,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 17:06:42,745 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:42,745 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:06:42,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 17:06:42,746 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:42,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:42,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1553684058, now seen corresponding path program 1 times [2020-09-24 17:06:42,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:42,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226787399] [2020-09-24 17:06:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:42,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:42,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:42,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:43,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:43,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:44,062 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:44,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 17:06:44,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:06:44,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1289 [2020-09-24 17:06:44,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:44,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:06:44,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 17:06:44,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 17:06:44,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:44,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:44,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:44,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:44,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:44,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:44,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:06:44,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:44,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:44,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:44,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:44,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:44,223 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 17:06:44,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226787399] [2020-09-24 17:06:44,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:06:44,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-24 17:06:44,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437938898] [2020-09-24 17:06:44,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:06:44,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:44,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:06:44,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:06:44,227 INFO L87 Difference]: Start difference. First operand 767 states and 935 transitions. Second operand 4 states. [2020-09-24 17:06:44,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:44,597 INFO L93 Difference]: Finished difference Result 1668 states and 2085 transitions. [2020-09-24 17:06:44,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:06:44,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 226 [2020-09-24 17:06:44,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:44,603 INFO L225 Difference]: With dead ends: 1668 [2020-09-24 17:06:44,604 INFO L226 Difference]: Without dead ends: 1012 [2020-09-24 17:06:44,605 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 17:06:44,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2020-09-24 17:06:44,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 822. [2020-09-24 17:06:44,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 822 states. [2020-09-24 17:06:44,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1001 transitions. [2020-09-24 17:06:44,638 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1001 transitions. Word has length 226 [2020-09-24 17:06:44,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:44,639 INFO L479 AbstractCegarLoop]: Abstraction has 822 states and 1001 transitions. [2020-09-24 17:06:44,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:06:44,639 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1001 transitions. [2020-09-24 17:06:44,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-24 17:06:44,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:44,644 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:44,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 17:06:44,644 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:44,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:44,644 INFO L82 PathProgramCache]: Analyzing trace with hash -2050919031, now seen corresponding path program 1 times [2020-09-24 17:06:44,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:44,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007232478] [2020-09-24 17:06:44,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:44,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:44,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:44,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:45,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:45,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-24 17:06:45,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:06:45,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-09-24 17:06:45,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:06:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 17:06:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 17:06:45,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:45,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:45,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:45,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:45,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:45,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:45,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:06:45,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:45,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:45,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:45,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:45,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 17:06:45,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007232478] [2020-09-24 17:06:45,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:45,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:06:45,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669245976] [2020-09-24 17:06:45,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:06:45,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:45,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:06:45,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:06:45,311 INFO L87 Difference]: Start difference. First operand 822 states and 1001 transitions. Second operand 4 states. [2020-09-24 17:06:45,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:45,791 INFO L93 Difference]: Finished difference Result 2267 states and 2843 transitions. [2020-09-24 17:06:45,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:06:45,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 231 [2020-09-24 17:06:45,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:45,802 INFO L225 Difference]: With dead ends: 2267 [2020-09-24 17:06:45,802 INFO L226 Difference]: Without dead ends: 1601 [2020-09-24 17:06:45,807 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 17:06:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2020-09-24 17:06:45,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 873. [2020-09-24 17:06:45,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-09-24 17:06:45,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1058 transitions. [2020-09-24 17:06:45,889 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1058 transitions. Word has length 231 [2020-09-24 17:06:45,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:45,890 INFO L479 AbstractCegarLoop]: Abstraction has 873 states and 1058 transitions. [2020-09-24 17:06:45,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:06:45,890 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1058 transitions. [2020-09-24 17:06:45,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-24 17:06:45,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:45,895 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:45,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 17:06:45,896 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:45,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:45,896 INFO L82 PathProgramCache]: Analyzing trace with hash 834545961, now seen corresponding path program 1 times [2020-09-24 17:06:45,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:45,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511029883] [2020-09-24 17:06:45,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:45,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:46,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:46,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:46,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:46,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:46,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-24 17:06:46,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:06:46,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-09-24 17:06:46,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:46,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:46,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 17:06:46,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:06:46,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:46,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:46,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:46,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:46,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:46,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:46,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:06:46,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:46,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:46,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:46,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:46,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:06:46,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511029883] [2020-09-24 17:06:46,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:46,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:46,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266379232] [2020-09-24 17:06:46,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:46,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:46,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:46,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:46,752 INFO L87 Difference]: Start difference. First operand 873 states and 1058 transitions. Second operand 3 states. [2020-09-24 17:06:46,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:46,818 INFO L93 Difference]: Finished difference Result 1659 states and 2035 transitions. [2020-09-24 17:06:46,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:46,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-09-24 17:06:46,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:46,823 INFO L225 Difference]: With dead ends: 1659 [2020-09-24 17:06:46,823 INFO L226 Difference]: Without dead ends: 942 [2020-09-24 17:06:46,826 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 17:06:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2020-09-24 17:06:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2020-09-24 17:06:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-09-24 17:06:46,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1135 transitions. [2020-09-24 17:06:46,864 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1135 transitions. Word has length 231 [2020-09-24 17:06:46,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:46,865 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1135 transitions. [2020-09-24 17:06:46,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:46,865 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1135 transitions. [2020-09-24 17:06:46,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-24 17:06:46,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:46,869 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:46,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 17:06:46,870 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:46,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:46,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1574891641, now seen corresponding path program 1 times [2020-09-24 17:06:46,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:46,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838963452] [2020-09-24 17:06:46,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:46,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:47,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:47,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:47,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:47,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-24 17:06:47,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:06:47,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 599 [2020-09-24 17:06:47,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:06:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-24 17:06:47,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:06:47,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:47,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:47,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:47,557 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:47,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:47,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:47,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:06:47,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:47,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:47,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:47,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:47,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 17:06:47,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838963452] [2020-09-24 17:06:47,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:47,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:06:47,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498767622] [2020-09-24 17:06:47,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:06:47,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:47,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:06:47,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:06:47,640 INFO L87 Difference]: Start difference. First operand 942 states and 1135 transitions. Second operand 4 states. [2020-09-24 17:06:48,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:48,107 INFO L93 Difference]: Finished difference Result 2564 states and 3188 transitions. [2020-09-24 17:06:48,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:06:48,108 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 232 [2020-09-24 17:06:48,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:48,117 INFO L225 Difference]: With dead ends: 2564 [2020-09-24 17:06:48,118 INFO L226 Difference]: Without dead ends: 1744 [2020-09-24 17:06:48,121 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 17:06:48,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2020-09-24 17:06:48,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 981. [2020-09-24 17:06:48,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 981 states. [2020-09-24 17:06:48,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1175 transitions. [2020-09-24 17:06:48,172 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1175 transitions. Word has length 232 [2020-09-24 17:06:48,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:48,172 INFO L479 AbstractCegarLoop]: Abstraction has 981 states and 1175 transitions. [2020-09-24 17:06:48,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:06:48,173 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1175 transitions. [2020-09-24 17:06:48,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 17:06:48,176 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:48,176 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:48,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 17:06:48,176 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:48,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:48,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1036479516, now seen corresponding path program 1 times [2020-09-24 17:06:48,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:48,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762146343] [2020-09-24 17:06:48,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:48,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:48,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:48,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:48,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:49,774 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:49,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-24 17:06:49,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:06:49,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1569 [2020-09-24 17:06:49,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:49,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:49,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-09-24 17:06:49,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 17:06:49,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:49,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:49,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:49,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:49,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:49,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:49,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:06:49,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:49,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:49,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:49,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:49,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:49,865 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-24 17:06:49,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762146343] [2020-09-24 17:06:49,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:49,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:49,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128603840] [2020-09-24 17:06:49,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:49,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:49,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:49,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:49,868 INFO L87 Difference]: Start difference. First operand 981 states and 1175 transitions. Second operand 3 states. [2020-09-24 17:06:50,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:50,135 INFO L93 Difference]: Finished difference Result 1960 states and 2418 transitions. [2020-09-24 17:06:50,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:50,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-09-24 17:06:50,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:50,142 INFO L225 Difference]: With dead ends: 1960 [2020-09-24 17:06:50,143 INFO L226 Difference]: Without dead ends: 1123 [2020-09-24 17:06:50,145 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 17:06:50,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2020-09-24 17:06:50,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1026. [2020-09-24 17:06:50,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1026 states. [2020-09-24 17:06:50,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1243 transitions. [2020-09-24 17:06:50,192 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1243 transitions. Word has length 235 [2020-09-24 17:06:50,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:50,193 INFO L479 AbstractCegarLoop]: Abstraction has 1026 states and 1243 transitions. [2020-09-24 17:06:50,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:50,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1243 transitions. [2020-09-24 17:06:50,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-09-24 17:06:50,197 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:50,198 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:06:50,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 17:06:50,198 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:50,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:50,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1242960942, now seen corresponding path program 1 times [2020-09-24 17:06:50,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:50,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796468437] [2020-09-24 17:06:50,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:50,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:50,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:50,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:50,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:50,645 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:50,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-24 17:06:50,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:06:50,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-09-24 17:06:50,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-24 17:06:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 17:06:50,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:50,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:50,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:50,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:50,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:50,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:50,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:06:50,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:50,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:50,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:50,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:50,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:50,737 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-24 17:06:50,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796468437] [2020-09-24 17:06:50,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:50,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:50,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459060703] [2020-09-24 17:06:50,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:50,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:50,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:50,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:50,740 INFO L87 Difference]: Start difference. First operand 1026 states and 1243 transitions. Second operand 3 states. [2020-09-24 17:06:50,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:50,936 INFO L93 Difference]: Finished difference Result 1895 states and 2325 transitions. [2020-09-24 17:06:50,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:50,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 258 [2020-09-24 17:06:50,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:50,941 INFO L225 Difference]: With dead ends: 1895 [2020-09-24 17:06:50,941 INFO L226 Difference]: Without dead ends: 1006 [2020-09-24 17:06:50,948 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 17:06:50,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2020-09-24 17:06:50,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 968. [2020-09-24 17:06:50,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 968 states. [2020-09-24 17:06:50,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1151 transitions. [2020-09-24 17:06:50,986 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1151 transitions. Word has length 258 [2020-09-24 17:06:50,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:50,987 INFO L479 AbstractCegarLoop]: Abstraction has 968 states and 1151 transitions. [2020-09-24 17:06:50,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:50,987 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1151 transitions. [2020-09-24 17:06:50,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-09-24 17:06:50,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:50,995 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:06:50,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 17:06:50,995 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:50,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:50,996 INFO L82 PathProgramCache]: Analyzing trace with hash 242861699, now seen corresponding path program 1 times [2020-09-24 17:06:50,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:50,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918882923] [2020-09-24 17:06:50,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:51,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:51,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:51,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:51,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:52,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:52,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-24 17:06:52,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:06:52,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1115 [2020-09-24 17:06:52,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 221 [2020-09-24 17:06:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:06:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:52,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:52,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:52,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:52,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:52,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:06:52,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:52,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:52,267 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-24 17:06:52,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918882923] [2020-09-24 17:06:52,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:52,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:52,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164042179] [2020-09-24 17:06:52,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:52,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:52,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:52,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:52,270 INFO L87 Difference]: Start difference. First operand 968 states and 1151 transitions. Second operand 3 states. [2020-09-24 17:06:52,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:52,324 INFO L93 Difference]: Finished difference Result 1803 states and 2171 transitions. [2020-09-24 17:06:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:52,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2020-09-24 17:06:52,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:52,331 INFO L225 Difference]: With dead ends: 1803 [2020-09-24 17:06:52,332 INFO L226 Difference]: Without dead ends: 991 [2020-09-24 17:06:52,335 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 17:06:52,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2020-09-24 17:06:52,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 981. [2020-09-24 17:06:52,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 981 states. [2020-09-24 17:06:52,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1166 transitions. [2020-09-24 17:06:52,381 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1166 transitions. Word has length 261 [2020-09-24 17:06:52,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:52,382 INFO L479 AbstractCegarLoop]: Abstraction has 981 states and 1166 transitions. [2020-09-24 17:06:52,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:52,382 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1166 transitions. [2020-09-24 17:06:52,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-24 17:06:52,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:52,392 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:52,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 17:06:52,393 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:52,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:52,394 INFO L82 PathProgramCache]: Analyzing trace with hash -196875119, now seen corresponding path program 1 times [2020-09-24 17:06:52,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:52,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696830647] [2020-09-24 17:06:52,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 17:06:52,439 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 17:06:52,440 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 17:06:52,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 17:06:52,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:06:52 BoogieIcfgContainer [2020-09-24 17:06:52,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:06:52,521 INFO L168 Benchmark]: Toolchain (without parser) took 24437.91 ms. Allocated memory was 146.3 MB in the beginning and 520.1 MB in the end (delta: 373.8 MB). Free memory was 101.9 MB in the beginning and 293.3 MB in the end (delta: -191.4 MB). Peak memory consumption was 182.4 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:52,522 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 17:06:52,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.74 ms. Allocated memory was 146.3 MB in the beginning and 201.9 MB in the end (delta: 55.6 MB). Free memory was 101.2 MB in the beginning and 176.1 MB in the end (delta: -74.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:52,526 INFO L168 Benchmark]: Boogie Preprocessor took 69.27 ms. Allocated memory is still 201.9 MB. Free memory was 176.1 MB in the beginning and 173.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:52,533 INFO L168 Benchmark]: RCFGBuilder took 1040.01 ms. Allocated memory is still 201.9 MB. Free memory was 173.4 MB in the beginning and 100.3 MB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:52,534 INFO L168 Benchmark]: TraceAbstraction took 22599.69 ms. Allocated memory was 201.9 MB in the beginning and 520.1 MB in the end (delta: 318.2 MB). Free memory was 99.6 MB in the beginning and 293.3 MB in the end (delta: -193.6 MB). Peak memory consumption was 124.6 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:52,544 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.74 ms. Allocated memory was 146.3 MB in the beginning and 201.9 MB in the end (delta: 55.6 MB). Free memory was 101.2 MB in the beginning and 176.1 MB in the end (delta: -74.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.27 ms. Allocated memory is still 201.9 MB. Free memory was 176.1 MB in the beginning and 173.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1040.01 ms. Allocated memory is still 201.9 MB. Free memory was 173.4 MB in the beginning and 100.3 MB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22599.69 ms. Allocated memory was 201.9 MB in the beginning and 520.1 MB in the end (delta: 318.2 MB). Free memory was 99.6 MB in the beginning and 293.3 MB in the end (delta: -193.6 MB). Peak memory consumption was 124.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 642]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L647] int s ; [L648] int tmp ; [L652] s = 8464 [L653] 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 ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength ; [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 = __VERIFIER_nondet_int() ; [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__state = initial_state [L73] blastFlag = 0 [L74] tmp = __VERIFIER_nondet_int() [L75] Time = tmp [L76] cb = 0 [L77] ret = -1 [L78] skip = 0 [L79] got_new_session = 0 [L80] COND TRUE s__info_callback != 0 [L81] cb = s__info_callback [L87] s__in_handshake ++ [L88] COND FALSE !(tmp___1 + 12288) [L93] COND FALSE !(s__cert == 0) [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND TRUE s__state == 8464 [L270] s__shutdown = 0 [L271] ret = __VERIFIER_nondet_int() [L272] COND TRUE blastFlag == 0 [L273] blastFlag = 1 [L275] COND FALSE !(ret <= 0) [L278] got_new_session = 1 [L279] s__state = 8496 [L280] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND TRUE s__state == 8496 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L288] COND FALSE !(ret <= 0) [L291] COND FALSE !(\read(s__hit)) [L294] s__state = 8512 [L296] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND TRUE s__state == 8512 [L301] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L302] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L303] COND TRUE __cil_tmp56 + 256UL [L304] skip = 1 [L315] s__state = 8528 [L316] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND FALSE !(s__state == 8512) [L142] COND FALSE !(s__state == 8513) [L145] COND TRUE s__state == 8528 [L320] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L321] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L323] __cil_tmp57 = (unsigned long )s__options [L324] COND TRUE __cil_tmp57 + 2097152UL [L325] s__s3__tmp__use_rsa_tmp = 1 [L330] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L357] ret = __VERIFIER_nondet_int() [L358] COND FALSE !(blastFlag == 6) [L361] COND FALSE !(ret <= 0) [L378] s__state = 8544 [L379] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND TRUE ! s__s3__tmp__reuse_message [L601] COND TRUE ! skip [L602] COND TRUE state == 8528 [L603] COND TRUE s__state == 8544 [L604] COND TRUE tmp___7 != 1024 [L605] COND TRUE tmp___7 != 512 [L606] COND TRUE __cil_tmp58 != 4294967294 [L607] COND TRUE l != 4294967266 [L642] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 440 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.4s, OverallIterations: 15, TraceHistogramMax: 4, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8128 SDtfs, 4101 SDslu, 10264 SDs, 0 SdLazy, 2162 SolverSat, 362 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1026occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 3095 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.5s InterpolantComputationTime, 3310 NumberOfCodeBlocks, 3310 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3031 ConstructedInterpolants, 0 QuantifiedInterpolants, 843385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 504/512 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...