/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:22:34,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:22:34,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:22:34,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:22:34,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:22:34,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:22:34,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:22:34,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:22:34,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:22:34,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:22:34,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:22:34,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:22:34,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:22:34,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:22:34,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:22:34,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:22:34,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:22:34,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:22:34,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:22:34,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:22:34,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:22:34,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:22:34,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:22:34,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:22:34,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:22:34,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:22:34,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:22:34,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:22:34,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:22:34,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:22:34,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:22:34,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:22:34,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:22:34,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:22:34,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:22:34,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:22:34,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:22:34,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:22:34,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:22:34,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:22:34,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:22:34,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:22:34,180 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:22:34,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:22:34,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:22:34,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:22:34,183 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:22:34,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:22:34,183 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:22:34,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:22:34,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:22:34,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:22:34,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:22:34,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:22:34,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:22:34,185 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:22:34,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:22:34,185 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:22:34,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:22:34,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:22:34,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:22:34,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:22:34,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:22:34,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:22:34,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:22:34,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:22:34,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:22:34,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:22:34,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:22:34,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:22:34,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:22:34,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:22:34,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:22:34,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:22:34,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:22:34,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:22:34,660 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:22:34,661 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_2.cil-2.c [2020-09-24 19:22:34,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f70eeca4b/60ad1b234366488da370d0b405fde7af/FLAG78722dbe1 [2020-09-24 19:22:35,355 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:22:35,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_2.cil-2.c [2020-09-24 19:22:35,375 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f70eeca4b/60ad1b234366488da370d0b405fde7af/FLAG78722dbe1 [2020-09-24 19:22:35,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f70eeca4b/60ad1b234366488da370d0b405fde7af [2020-09-24 19:22:35,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:22:35,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:22:35,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:22:35,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:22:35,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:22:35,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:35" (1/1) ... [2020-09-24 19:22:35,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568e2849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:35, skipping insertion in model container [2020-09-24 19:22:35,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:35" (1/1) ... [2020-09-24 19:22:35,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:22:35,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:22:36,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:22:36,060 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:22:36,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:22:36,256 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:22:36,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:36 WrapperNode [2020-09-24 19:22:36,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:22:36,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:22:36,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:22:36,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:22:36,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:36" (1/1) ... [2020-09-24 19:22:36,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:36" (1/1) ... [2020-09-24 19:22:36,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:36" (1/1) ... [2020-09-24 19:22:36,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:36" (1/1) ... [2020-09-24 19:22:36,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:36" (1/1) ... [2020-09-24 19:22:36,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:36" (1/1) ... [2020-09-24 19:22:36,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:36" (1/1) ... [2020-09-24 19:22:36,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:22:36,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:22:36,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:22:36,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:22:36,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:22:36,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:22:36,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:22:36,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-24 19:22:36,413 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:22:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:22:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 19:22:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:22:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 19:22:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-24 19:22:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:22:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:22:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:22:36,650 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 19:22:37,395 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-24 19:22:37,396 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-24 19:22:37,416 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:22:37,417 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 19:22:37,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:37 BoogieIcfgContainer [2020-09-24 19:22:37,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:22:37,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:22:37,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:22:37,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:22:37,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:22:35" (1/3) ... [2020-09-24 19:22:37,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b226e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:37, skipping insertion in model container [2020-09-24 19:22:37,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:36" (2/3) ... [2020-09-24 19:22:37,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b226e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:37, skipping insertion in model container [2020-09-24 19:22:37,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:37" (3/3) ... [2020-09-24 19:22:37,446 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.cil-2.c [2020-09-24 19:22:37,459 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:22:37,471 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:22:37,495 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:22:37,532 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:22:37,533 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:22:37,533 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:22:37,533 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:22:37,533 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:22:37,533 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:22:37,534 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:22:37,534 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:22:37,565 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states. [2020-09-24 19:22:37,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 19:22:37,588 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:37,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:37,590 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:37,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:37,597 INFO L82 PathProgramCache]: Analyzing trace with hash -51904500, now seen corresponding path program 1 times [2020-09-24 19:22:37,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:37,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171015557] [2020-09-24 19:22:37,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:38,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:38,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:38,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:38,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:38,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-24 19:22:38,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:38,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-24 19:22:38,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:38,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:38,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 134 [2020-09-24 19:22:38,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 19:22:38,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:22:39,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:39,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:39,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:39,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:39,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:39,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:22:39,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:39,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:39,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:39,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:39,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:39,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171015557] [2020-09-24 19:22:39,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:39,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:39,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018882744] [2020-09-24 19:22:39,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:39,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:39,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:39,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:39,163 INFO L87 Difference]: Start difference. First operand 411 states. Second operand 3 states. [2020-09-24 19:22:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:39,336 INFO L93 Difference]: Finished difference Result 927 states and 1215 transitions. [2020-09-24 19:22:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:39,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-24 19:22:39,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:39,376 INFO L225 Difference]: With dead ends: 927 [2020-09-24 19:22:39,376 INFO L226 Difference]: Without dead ends: 600 [2020-09-24 19:22:39,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:39,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-09-24 19:22:39,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2020-09-24 19:22:39,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2020-09-24 19:22:39,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 729 transitions. [2020-09-24 19:22:39,503 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 729 transitions. Word has length 181 [2020-09-24 19:22:39,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:39,505 INFO L479 AbstractCegarLoop]: Abstraction has 600 states and 729 transitions. [2020-09-24 19:22:39,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:39,505 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 729 transitions. [2020-09-24 19:22:39,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 19:22:39,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:39,512 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, 1] [2020-09-24 19:22:39,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:22:39,513 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:39,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:39,514 INFO L82 PathProgramCache]: Analyzing trace with hash -144089876, now seen corresponding path program 1 times [2020-09-24 19:22:39,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:39,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647790421] [2020-09-24 19:22:39,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:39,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:39,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:39,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:40,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:40,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 19:22:40,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:40,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-09-24 19:22:40,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-24 19:22:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 19:22:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:40,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:40,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:40,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:40,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:40,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:40,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:40,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:40,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:40,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:40,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:40,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:40,218 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 19:22:40,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647790421] [2020-09-24 19:22:40,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:40,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:40,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661785479] [2020-09-24 19:22:40,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:40,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:40,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:40,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:40,235 INFO L87 Difference]: Start difference. First operand 600 states and 729 transitions. Second operand 3 states. [2020-09-24 19:22:40,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:40,298 INFO L93 Difference]: Finished difference Result 1056 states and 1314 transitions. [2020-09-24 19:22:40,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:40,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-09-24 19:22:40,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:40,304 INFO L225 Difference]: With dead ends: 1056 [2020-09-24 19:22:40,304 INFO L226 Difference]: Without dead ends: 825 [2020-09-24 19:22:40,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:40,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-09-24 19:22:40,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2020-09-24 19:22:40,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-09-24 19:22:40,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1016 transitions. [2020-09-24 19:22:40,349 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1016 transitions. Word has length 204 [2020-09-24 19:22:40,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:40,352 INFO L479 AbstractCegarLoop]: Abstraction has 825 states and 1016 transitions. [2020-09-24 19:22:40,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:40,352 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1016 transitions. [2020-09-24 19:22:40,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-24 19:22:40,360 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:40,361 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:40,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:22:40,361 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:40,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:40,362 INFO L82 PathProgramCache]: Analyzing trace with hash 955931285, now seen corresponding path program 1 times [2020-09-24 19:22:40,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:40,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889047580] [2020-09-24 19:22:40,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:40,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:40,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:40,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:40,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:40,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-24 19:22:40,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:40,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-09-24 19:22:40,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:40,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:40,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-09-24 19:22:40,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 19:22:40,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:40,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:40,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:40,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:40,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:40,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:40,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:22:40,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:40,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:40,977 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 19:22:40,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889047580] [2020-09-24 19:22:40,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:40,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:40,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831453236] [2020-09-24 19:22:40,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:40,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:40,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:40,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:40,980 INFO L87 Difference]: Start difference. First operand 825 states and 1016 transitions. Second operand 3 states. [2020-09-24 19:22:41,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:41,231 INFO L93 Difference]: Finished difference Result 1672 states and 2159 transitions. [2020-09-24 19:22:41,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:41,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-09-24 19:22:41,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:41,237 INFO L225 Difference]: With dead ends: 1672 [2020-09-24 19:22:41,237 INFO L226 Difference]: Without dead ends: 991 [2020-09-24 19:22:41,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:41,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2020-09-24 19:22:41,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 960. [2020-09-24 19:22:41,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 960 states. [2020-09-24 19:22:41,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1166 transitions. [2020-09-24 19:22:41,265 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1166 transitions. Word has length 229 [2020-09-24 19:22:41,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:41,265 INFO L479 AbstractCegarLoop]: Abstraction has 960 states and 1166 transitions. [2020-09-24 19:22:41,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:41,266 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1166 transitions. [2020-09-24 19:22:41,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-24 19:22:41,271 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:41,271 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:41,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:22:41,272 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:41,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:41,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1369562677, now seen corresponding path program 1 times [2020-09-24 19:22:41,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:41,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776168683] [2020-09-24 19:22:41,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:41,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:41,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:41,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:41,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:41,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-24 19:22:41,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:41,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-09-24 19:22:41,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:41,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:41,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-09-24 19:22:41,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 19:22:41,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:41,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:41,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:41,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:41,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:41,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:41,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:41,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:41,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:41,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:41,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:41,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:41,828 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 19:22:41,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776168683] [2020-09-24 19:22:41,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:41,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:41,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114859988] [2020-09-24 19:22:41,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:41,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:41,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:41,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:41,831 INFO L87 Difference]: Start difference. First operand 960 states and 1166 transitions. Second operand 3 states. [2020-09-24 19:22:42,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:42,077 INFO L93 Difference]: Finished difference Result 1884 states and 2352 transitions. [2020-09-24 19:22:42,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:42,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-09-24 19:22:42,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:42,085 INFO L225 Difference]: With dead ends: 1884 [2020-09-24 19:22:42,085 INFO L226 Difference]: Without dead ends: 1068 [2020-09-24 19:22:42,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:42,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2020-09-24 19:22:42,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1038. [2020-09-24 19:22:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1038 states. [2020-09-24 19:22:42,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1259 transitions. [2020-09-24 19:22:42,121 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1259 transitions. Word has length 229 [2020-09-24 19:22:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:42,122 INFO L479 AbstractCegarLoop]: Abstraction has 1038 states and 1259 transitions. [2020-09-24 19:22:42,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1259 transitions. [2020-09-24 19:22:42,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-09-24 19:22:42,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:42,128 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:42,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:22:42,128 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:42,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:42,129 INFO L82 PathProgramCache]: Analyzing trace with hash -875156998, now seen corresponding path program 1 times [2020-09-24 19:22:42,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:42,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502840946] [2020-09-24 19:22:42,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:42,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:42,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:42,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:42,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:42,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:43,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:43,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-24 19:22:43,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:43,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-24 19:22:43,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:43,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:43,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-24 19:22:43,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 19:22:43,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:43,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:43,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:43,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:43,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:43,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:43,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:43,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:43,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:43,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502840946] [2020-09-24 19:22:43,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:43,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:43,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832814838] [2020-09-24 19:22:43,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:43,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:43,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:43,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:43,326 INFO L87 Difference]: Start difference. First operand 1038 states and 1259 transitions. Second operand 3 states. [2020-09-24 19:22:43,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:43,371 INFO L93 Difference]: Finished difference Result 2745 states and 3364 transitions. [2020-09-24 19:22:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:43,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-09-24 19:22:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:43,385 INFO L225 Difference]: With dead ends: 2745 [2020-09-24 19:22:43,385 INFO L226 Difference]: Without dead ends: 1851 [2020-09-24 19:22:43,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:43,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2020-09-24 19:22:43,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1849. [2020-09-24 19:22:43,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1849 states. [2020-09-24 19:22:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2243 transitions. [2020-09-24 19:22:43,455 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2243 transitions. Word has length 236 [2020-09-24 19:22:43,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:43,456 INFO L479 AbstractCegarLoop]: Abstraction has 1849 states and 2243 transitions. [2020-09-24 19:22:43,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:43,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2243 transitions. [2020-09-24 19:22:43,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-24 19:22:43,466 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:43,466 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:43,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:22:43,467 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:43,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:43,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1405368712, now seen corresponding path program 1 times [2020-09-24 19:22:43,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:43,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581495432] [2020-09-24 19:22:43,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:43,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:43,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:43,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:43,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:44,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:44,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:44,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 19:22:44,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:44,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:22:44,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:44,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:44,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 19:22:44,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 19:22:44,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:44,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:44,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:44,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:44,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:44,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:44,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:44,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:44,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:22:44,620 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 19:22:44,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581495432] [2020-09-24 19:22:44,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:44,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:44,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964601208] [2020-09-24 19:22:44,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:44,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:44,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:44,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:44,624 INFO L87 Difference]: Start difference. First operand 1849 states and 2243 transitions. Second operand 3 states. [2020-09-24 19:22:44,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:44,706 INFO L93 Difference]: Finished difference Result 3554 states and 4346 transitions. [2020-09-24 19:22:44,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:44,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2020-09-24 19:22:44,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:44,719 INFO L225 Difference]: With dead ends: 3554 [2020-09-24 19:22:44,720 INFO L226 Difference]: Without dead ends: 2414 [2020-09-24 19:22:44,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:44,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2020-09-24 19:22:44,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2414. [2020-09-24 19:22:44,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2414 states. [2020-09-24 19:22:44,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 2939 transitions. [2020-09-24 19:22:44,794 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 2939 transitions. Word has length 237 [2020-09-24 19:22:44,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:44,795 INFO L479 AbstractCegarLoop]: Abstraction has 2414 states and 2939 transitions. [2020-09-24 19:22:44,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:44,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 2939 transitions. [2020-09-24 19:22:44,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-09-24 19:22:44,804 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:44,804 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1] [2020-09-24 19:22:44,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:22:44,805 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:44,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:44,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1652979383, now seen corresponding path program 1 times [2020-09-24 19:22:44,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:44,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374258323] [2020-09-24 19:22:44,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:22:44,851 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:22:44,851 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:22:44,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:22:44,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:22:44 BoogieIcfgContainer [2020-09-24 19:22:44,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:22:44,923 INFO L168 Benchmark]: Toolchain (without parser) took 9250.66 ms. Allocated memory was 137.4 MB in the beginning and 350.7 MB in the end (delta: 213.4 MB). Free memory was 99.9 MB in the beginning and 173.1 MB in the end (delta: -73.2 MB). Peak memory consumption was 140.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:44,924 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 137.4 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-24 19:22:44,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 583.37 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 99.3 MB in the beginning and 176.5 MB in the end (delta: -77.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:44,926 INFO L168 Benchmark]: Boogie Preprocessor took 64.79 ms. Allocated memory is still 200.8 MB. Free memory was 176.5 MB in the beginning and 174.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:44,927 INFO L168 Benchmark]: RCFGBuilder took 1108.53 ms. Allocated memory is still 200.8 MB. Free memory was 173.3 MB in the beginning and 104.8 MB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:44,929 INFO L168 Benchmark]: TraceAbstraction took 7482.08 ms. Allocated memory was 200.8 MB in the beginning and 350.7 MB in the end (delta: 149.9 MB). Free memory was 104.8 MB in the beginning and 173.1 MB in the end (delta: -68.3 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:44,942 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 137.4 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 583.37 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 99.3 MB in the beginning and 176.5 MB in the end (delta: -77.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.79 ms. Allocated memory is still 200.8 MB. Free memory was 176.5 MB in the beginning and 174.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1108.53 ms. Allocated memory is still 200.8 MB. Free memory was 173.3 MB in the beginning and 104.8 MB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7482.08 ms. Allocated memory was 200.8 MB in the beginning and 350.7 MB in the end (delta: 149.9 MB). Free memory was 104.8 MB in the beginning and 173.1 MB in the end (delta: -68.3 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 607]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L612] int s ; [L613] int tmp ; [L617] s = 8464 [L618] 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 = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L73] s__state = initial_state [L74] blastFlag = 0 [L75] tmp = __VERIFIER_nondet_int() [L76] Time = tmp [L77] cb = 0 [L78] ret = -1 [L79] skip = 0 [L80] got_new_session = 0 [L81] COND FALSE !(s__info_callback != 0) [L84] COND FALSE !(s__ctx__info_callback != 0) [L88] s__in_handshake ++ [L89] COND FALSE !(tmp___1 + 12288) [L94] COND FALSE !(s__cert == 0) [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND TRUE s__state == 8464 [L271] s__shutdown = 0 [L272] ret = __VERIFIER_nondet_int() [L273] COND TRUE blastFlag == 0 [L274] blastFlag = 1 [L276] COND FALSE !(ret <= 0) [L279] got_new_session = 1 [L280] s__state = 8496 [L281] s__init_num = 0 [L579] COND FALSE !(! s__s3__tmp__reuse_message) [L596] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND FALSE !(s__state == 8464) [L128] COND FALSE !(s__state == 8465) [L131] COND FALSE !(s__state == 8466) [L134] COND TRUE s__state == 8496 [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 1 [L287] blastFlag = 2 [L293] COND FALSE !(ret <= 0) [L296] COND TRUE \read(s__hit) [L297] s__state = 8656 [L301] s__init_num = 0 [L579] COND FALSE !(! s__s3__tmp__reuse_message) [L596] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND FALSE !(s__state == 8464) [L128] COND FALSE !(s__state == 8465) [L131] COND FALSE !(s__state == 8466) [L134] COND FALSE !(s__state == 8496) [L137] COND FALSE !(s__state == 8497) [L140] COND FALSE !(s__state == 8512) [L143] COND FALSE !(s__state == 8513) [L146] COND FALSE !(s__state == 8528) [L149] COND FALSE !(s__state == 8529) [L152] COND FALSE !(s__state == 8544) [L155] COND FALSE !(s__state == 8545) [L158] COND FALSE !(s__state == 8560) [L161] COND FALSE !(s__state == 8561) [L164] COND FALSE !(s__state == 8448) [L167] COND FALSE !(s__state == 8576) [L170] COND FALSE !(s__state == 8577) [L173] COND FALSE !(s__state == 8592) [L176] COND FALSE !(s__state == 8593) [L179] COND FALSE !(s__state == 8608) [L182] COND FALSE !(s__state == 8609) [L185] COND FALSE !(s__state == 8640) [L188] COND FALSE !(s__state == 8641) [L191] COND TRUE s__state == 8656 [L490] s__session__cipher = s__s3__tmp__new_cipher [L491] COND FALSE !(! tmp___9) [L495] ret = __VERIFIER_nondet_int() [L496] COND TRUE blastFlag == 2 [L497] blastFlag = 3 [L499] COND FALSE !(ret <= 0) [L502] s__state = 8672 [L503] s__init_num = 0 [L504] COND FALSE !(! tmp___10) [L579] COND FALSE !(! s__s3__tmp__reuse_message) [L596] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND FALSE !(s__state == 8464) [L128] COND FALSE !(s__state == 8465) [L131] COND FALSE !(s__state == 8466) [L134] COND FALSE !(s__state == 8496) [L137] COND FALSE !(s__state == 8497) [L140] COND FALSE !(s__state == 8512) [L143] COND FALSE !(s__state == 8513) [L146] COND FALSE !(s__state == 8528) [L149] COND FALSE !(s__state == 8529) [L152] COND FALSE !(s__state == 8544) [L155] COND FALSE !(s__state == 8545) [L158] COND FALSE !(s__state == 8560) [L161] COND FALSE !(s__state == 8561) [L164] COND FALSE !(s__state == 8448) [L167] COND FALSE !(s__state == 8576) [L170] COND FALSE !(s__state == 8577) [L173] COND FALSE !(s__state == 8592) [L176] COND FALSE !(s__state == 8593) [L179] COND FALSE !(s__state == 8608) [L182] COND FALSE !(s__state == 8609) [L185] COND FALSE !(s__state == 8640) [L188] COND FALSE !(s__state == 8641) [L191] COND FALSE !(s__state == 8656) [L194] COND FALSE !(s__state == 8657) [L197] COND TRUE s__state == 8672 [L511] ret = __VERIFIER_nondet_int() [L512] COND TRUE blastFlag == 3 [L607] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 411 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.3s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3005 SDtfs, 1134 SDslu, 2402 SDs, 0 SdLazy, 310 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2414occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 63 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1591 NumberOfCodeBlocks, 1591 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1310 ConstructedInterpolants, 0 QuantifiedInterpolants, 393457 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 164/164 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...